feat: testbed (#39)

2023-11-06 21:26:37 +01:00 · 2023-11-06 21:26:37 +01:00 · c7affd0da9
parent 4aacd7087b
commit c7affd0da9
51 changed files with 3633 additions and 74 deletions
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@ -0,0 +1,91 @@
+name: test
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  testbed:
+    runs-on: [self-hosted, intel-cpu, 8-cpu, ci]
+    container:
+      image: ubuntu:22.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          apt update
+          DEBIAN_FRONTEND=noninteractive apt install -y pkg-config protobuf-compiler libssl-dev curl build-essential git-all gfortran
+
+      - name: Install Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          rustflags: ''
+          toolchain: nightly
+
+      - name: Install Python 3.10
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install node 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
+      - name: Install yarn
+        run: |
+          npm i -g yarn
+
+      - name: Set up cargo cache
+        uses: actions/cache@v3
+        continue-on-error: false
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
+
+      - name: Build project
+        run: cargo build -r
+
+      - name: Run testbed
+        run: cargo run --bin testbed -r -- --api-token $API_TOKEN -r `pwd`/crates/testbed/repositories-ci.yaml
+        if: github.event_name == 'push' || github.event_name == 'pull_request'
+        env:
+          API_TOKEN: ${{ secrets.API_TOKEN }}
+
+      - name: Run testbed
+        run: cargo run --bin testbed -r -- --api-token $API_TOKEN
+        if: github.event_name == 'workflow_dispatch'
+        env:
+          API_TOKEN: ${{ secrets.API_TOKEN }}
+
+      - name: Find Comment
+        uses: peter-evans/find-comment@v2
+        id: fc
+        if: github.event_name == 'pull_request'
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-author: 'github-actions[bot]'
+          body-includes: '| Repository name | Source type | Average hole completion time (s) | Pass percentage |'
+
+      - name: Create or update comment
+        if: github.event_name == 'pull_request'
+        uses: peter-evans/create-or-update-comment@v3
+        with:
+          comment-id: ${{ steps.fc.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          body-path: results.md
+          edit-mode: replace
+
--- a/.gitignore
+++ b/.gitignore
@ -1,2 +1,7 @@
+.vscode/
 dist/
 target/
+.DS_Store
+__pycache__/
+results.md
+.pytest_cache/
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@ -1,16 +1,17 @@
 [workspace]
 members = ["xtask/", "crates/*"]
 resolver = "2"
+exclude = ["crates/testbed/repositories/*"]

 [workspace.package]
 edition = "2021"
 license = "Apache-2.0"
 authors = ["Luc Georges <luc@huggingface.co>"]

-[profile.dev]
+# [profile.dev]
 # Disabling debug info speeds up builds a bunch,
 # and we don't rely on it for debugging that much.
-debug = 0
+# debug = 0

 [profile.dev.package]
 # This speeds up `cargo xtask dist`.
--- a/crates/llm-ls/Cargo.toml
+++ b/crates/llm-ls/Cargo.toml
@ -9,11 +9,20 @@ name = "llm-ls"
 [dependencies]
 home = "0.5"
 ropey = "1.6"
-reqwest = { version = "0.11", default-features = false, features = ["json", "rustls-tls"] }
+reqwest = { version = "0.11", default-features = false, features = [
+  "json",
+  "rustls-tls",
+] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
-tokenizers = { version = "0.13", default-features = false, features = ["onig"] }
-tokio = { version = "1", features = ["fs", "io-std", "io-util", "macros", "rt-multi-thread"] }
+tokenizers = { version = "0.14", default-features = false, features = ["onig"] }
+tokio = { version = "1", features = [
+  "fs",
+  "io-std",
+  "io-util",
+  "macros",
+  "rt-multi-thread",
+] }
 tower-lsp = "0.20"
 tracing = "0.1"
 tracing-appender = "0.2"
@ -43,8 +52,4 @@ tree-sitter-typescript = "0.20"

 [dependencies.uuid]
 version = "1.4"
-features = [
-    "v4",
-    "fast-rng",
-    "serde",
-]
+features = ["v4", "fast-rng", "serde"]
--- a/crates/llm-ls/src/main.rs
+++ b/crates/llm-ls/src/main.rs
@ -663,7 +663,7 @@ impl LanguageServer for Backend {

    async fn initialized(&self, _: InitializedParams) {
        self.client
-            .log_message(MessageType::INFO, "{llm-ls} initialized")
+            .log_message(MessageType::INFO, "llm-ls initialized")
            .await;
        info!("initialized language server");
    }
@ -686,15 +686,15 @@ impl LanguageServer for Backend {
            Err(err) => error!("error opening {uri}: {err}"),
        }
        self.client
-            .log_message(MessageType::INFO, "{llm-ls} file opened")
+            .log_message(MessageType::INFO, format!("{uri} opened"))
            .await;
    }

    async fn did_change(&self, params: DidChangeTextDocumentParams) {
-        self.client
-            .log_message(MessageType::INFO, "{llm-ls} file changed")
-            .await;
        let uri = params.text_document.uri.to_string();
+        self.client
+            .log_message(MessageType::INFO, format!("{uri} changed"))
+            .await;
        let mut document_map = self.document_map.write().await;
        let doc = document_map.get_mut(&uri);
        if let Some(doc) = doc {
@ -708,20 +708,20 @@ impl LanguageServer for Backend {
    }

    async fn did_save(&self, params: DidSaveTextDocumentParams) {
-        self.client
-            .log_message(MessageType::INFO, "{llm-ls} file saved")
-            .await;
        let uri = params.text_document.uri.to_string();
+        self.client
+            .log_message(MessageType::INFO, format!("{uri} saved"))
+            .await;
        info!("{uri} saved");
    }

    // TODO:
    // textDocument/didClose
    async fn did_close(&self, params: DidCloseTextDocumentParams) {
-        self.client
-            .log_message(MessageType::INFO, "{llm-ls} file closed")
-            .await;
        let uri = params.text_document.uri.to_string();
+        self.client
+            .log_message(MessageType::INFO, format!("{uri} closed"))
+            .await;
        info!("{uri} closed");
    }

--- a/crates/lsp-client/Cargo.toml
+++ b/crates/lsp-client/Cargo.toml
@ -0,0 +1,16 @@
+[package]
+name = "lsp-client"
+version = "0.1.0"
+edition.workspace = true
+license.workspace = true
+authors.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+lsp-types = "0.94"
+serde = "1"
+serde_json = "1"
+tokio = { version = "1", features = ["io-util", "process"] }
+tracing = "0.1"
+
--- a/crates/lsp-client/README.md
+++ b/crates/lsp-client/README.md
@ -0,0 +1,5 @@
+# LSP Client
+
+Rust LSP Client.
+
+Heavily inspired by rust-analyzer's lsp-server implementation.
--- a/crates/lsp-client/src/client.rs
+++ b/crates/lsp-client/src/client.rs
@ -0,0 +1,130 @@
+use std::sync::Arc;
+
+use tokio::sync::mpsc::{UnboundedReceiver, UnboundedSender};
+use tokio::sync::{oneshot, Mutex};
+use tokio::task::JoinHandle;
+use tracing::{debug, error};
+
+use crate::error::Result;
+use crate::msg::{Message, Notification, Request, Response};
+use crate::res_queue::ResQueue;
+use crate::server::Server;
+
+pub struct Connection {
+    pub(crate) sender: UnboundedSender<Message>,
+    pub(crate) receiver: UnboundedReceiver<Message>,
+}
+
+#[derive(Clone)]
+pub struct LspClient {
+    reader_thread: Arc<JoinHandle<()>>,
+    res_queue: Arc<Mutex<ResQueue<oneshot::Sender<Response>>>>,
+    server: Arc<Server>,
+    server_sender: UnboundedSender<Message>,
+}
+
+impl LspClient {
+    pub async fn new(conn: Connection, server: Server) -> Self {
+        let res_queue = Arc::new(Mutex::new(ResQueue::default()));
+        let res_queue_clone = res_queue.clone();
+        let mut rx = conn.receiver;
+        let reader_thread = tokio::spawn(async move {
+            while let Some(msg) = rx.recv().await {
+                match msg {
+                    Message::Request(req) => Self::on_request(req),
+                    Message::Notification(not) => Self::on_notification(not),
+                    Message::Response(res) => {
+                        Self::complete_request(res_queue_clone.clone(), res).await
+                    }
+                }
+            }
+        });
+        Self {
+            reader_thread: Arc::new(reader_thread),
+            res_queue,
+            server: Arc::new(server),
+            server_sender: conn.sender,
+        }
+    }
+
+    fn on_request(_req: Request) {
+        todo!("requests are not handled by client");
+    }
+
+    fn on_notification(not: Notification) {
+        debug!("received notification: {not:?}");
+    }
+
+    pub async fn send_request<R: lsp_types::request::Request>(
+        &self,
+        params: R::Params,
+    ) -> Result<Response> {
+        let (sender, receiver) = oneshot::channel::<Response>();
+        let request =
+            self.res_queue
+                .lock()
+                .await
+                .outgoing
+                .register(R::METHOD.to_string(), params, sender);
+
+        self.send(request.into());
+        Ok(receiver.await?)
+    }
+
+    async fn complete_request(
+        res_queue: Arc<Mutex<ResQueue<oneshot::Sender<Response>>>>,
+        response: Response,
+    ) {
+        let sender = res_queue
+            .lock()
+            .await
+            .outgoing
+            .complete(response.id.clone())
+            .expect("received response for unknown request");
+
+        sender.send(response).unwrap();
+    }
+
+    pub fn send_notification<N: lsp_types::notification::Notification>(&self, params: N::Params) {
+        let not = Notification::new(N::METHOD.to_string(), params);
+        self.send(not.into());
+    }
+
+    pub async fn shutdown(&self) -> Result<()> {
+        self.send_request::<lsp_types::request::Shutdown>(())
+            .await?;
+        Ok(())
+    }
+
+    /// Exit will join on server threads waiting for exit.
+    ///
+    /// This will fail if there are other strong references to the [`Server`] instance
+    pub async fn exit(self) {
+        self.send_notification::<lsp_types::notification::Exit>(());
+
+        match Arc::into_inner(self.reader_thread) {
+            Some(reader) => match reader.await {
+                Ok(r) => r,
+                Err(err) => {
+                    error!("client reader panicked!");
+                    std::panic::panic_any(err)
+                }
+            },
+            None => error!("error joining client thread, resources may have been leaked"),
+        };
+
+        match Arc::into_inner(self.server) {
+            Some(server) => {
+                match server.join().await {
+                    Ok(_) => (),
+                    Err(err) => error!("thread exited with error: {}", err),
+                };
+            }
+            None => error!("error joining server threads, resources may have been leaked"),
+        };
+    }
+
+    fn send(&self, message: Message) {
+        self.server_sender.send(message).unwrap();
+    }
+}
--- a/crates/lsp-client/src/error.rs
+++ b/crates/lsp-client/src/error.rs
@ -0,0 +1,95 @@
+use std::fmt;
+use std::io;
+
+use tokio::sync::oneshot::error::RecvError;
+
+use crate::msg::ResponseError;
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct ProtocolError(pub(crate) String);
+
+impl std::error::Error for ProtocolError {}
+
+impl fmt::Display for ProtocolError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        fmt::Display::fmt(&self.0, f)
+    }
+}
+
+#[derive(Debug)]
+pub enum ExtractError {
+    /// The extracted message was of a different method than expected.
+    MethodMismatch(String, String),
+    /// Failed to deserialize the message.
+    JsonError {
+        msg_type: String,
+        method: Option<String>,
+        error: serde_json::Error,
+    },
+    /// Server responded with an Error
+    ResponseError { error: ResponseError },
+}
+
+impl std::error::Error for ExtractError {}
+
+impl fmt::Display for ExtractError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            ExtractError::MethodMismatch(asked, req_method) => {
+                write!(
+                    f,
+                    "Method mismatch for request, extract for '{}' != request method '{}'",
+                    asked, req_method
+                )
+            }
+            ExtractError::JsonError {
+                msg_type,
+                method,
+                error,
+            } => {
+                let method = if let Some(method) = method {
+                    method.clone()
+                } else {
+                    "None".to_owned()
+                };
+                write!(f, "Invalid message body\nMessage type: {msg_type}\nMethod: {method}\n error: {error}",)
+            }
+            ExtractError::ResponseError { error } => {
+                write!(f, "Server answered with an error message\n error: {error}",)
+            }
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum Error {
+    ChannelClosed(RecvError),
+    Io(io::Error),
+    MissingBinaryPath,
+}
+
+impl std::error::Error for Error {}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Error::ChannelClosed(e) => write!(f, "Channel closed: {}", e),
+            Error::Io(e) => write!(f, "IO error: {}", e),
+            Error::MissingBinaryPath => write!(f, "Missing binary path"),
+        }
+    }
+}
+
+impl From<RecvError> for Error {
+    fn from(value: RecvError) -> Self {
+        Self::ChannelClosed(value)
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(value: io::Error) -> Self {
+        Self::Io(value)
+    }
+}
+
+pub type Result<T> = std::result::Result<T, Error>;
--- a/crates/lsp-client/src/lib.rs
+++ b/crates/lsp-client/src/lib.rs
@ -0,0 +1,5 @@
+pub mod client;
+pub mod error;
+pub mod msg;
+pub mod res_queue;
+pub mod server;
--- a/crates/lsp-client/src/msg.rs
+++ b/crates/lsp-client/src/msg.rs
@ -0,0 +1,458 @@
+use std::{
+    fmt::{self, Display},
+    io,
+    marker::Unpin,
+};
+
+use serde::{de::DeserializeOwned, Deserialize, Serialize};
+use tokio::io::{AsyncBufRead, AsyncBufReadExt, AsyncReadExt, AsyncWrite, AsyncWriteExt};
+use tracing::debug;
+
+use crate::error::ExtractError;
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+#[serde(untagged)]
+pub enum Message {
+    Request(Request),
+    Response(Response),
+    Notification(Notification),
+}
+
+impl From<Request> for Message {
+    fn from(request: Request) -> Message {
+        Message::Request(request)
+    }
+}
+
+impl From<Response> for Message {
+    fn from(response: Response) -> Message {
+        Message::Response(response)
+    }
+}
+
+impl From<Notification> for Message {
+    fn from(notification: Notification) -> Message {
+        Message::Notification(notification)
+    }
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[serde(transparent)]
+pub struct RequestId(IdRepr);
+
+#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[serde(untagged)]
+enum IdRepr {
+    I32(i32),
+    String(String),
+}
+
+impl From<i32> for RequestId {
+    fn from(id: i32) -> RequestId {
+        RequestId(IdRepr::I32(id))
+    }
+}
+
+impl From<String> for RequestId {
+    fn from(id: String) -> RequestId {
+        RequestId(IdRepr::String(id))
+    }
+}
+
+impl fmt::Display for RequestId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match &self.0 {
+            IdRepr::I32(it) => fmt::Display::fmt(it, f),
+            // Use debug here, to make it clear that `92` and `"92"` are
+            // different, and to reduce WTF factor if the sever uses `" "` as an
+            // ID.
+            IdRepr::String(it) => fmt::Debug::fmt(it, f),
+        }
+    }
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct Request {
+    pub id: RequestId,
+    pub method: String,
+    #[serde(default = "serde_json::Value::default")]
+    #[serde(skip_serializing_if = "serde_json::Value::is_null")]
+    pub params: serde_json::Value,
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+#[serde(rename_all = "lowercase")]
+pub enum ResponseContent {
+    Result(serde_json::Value),
+    Error(ResponseError),
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct Response {
+    // JSON RPC allows this to be null if it was impossible
+    // to decode the request's id. Ignore this special case
+    // and just die horribly.
+    pub id: RequestId,
+    #[serde(flatten)]
+    pub content: ResponseContent,
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct ResponseError {
+    pub code: i32,
+    pub message: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub data: Option<serde_json::Value>,
+}
+
+impl Display for ResponseError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match ErrorCode::try_from_i32(self.code) {
+            Ok(code) => write!(f, "{:?} [{}]: {}", code, self.code, self.message),
+            Err(_) => write!(f, "Unknown error code [{}]: {}", self.code, self.message),
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug)]
+#[non_exhaustive]
+pub enum ErrorCode {
+    // Defined by JSON RPC:
+    ParseError = -32700,
+    InvalidRequest = -32600,
+    MethodNotFound = -32601,
+    InvalidParams = -32602,
+    InternalError = -32603,
+    ServerErrorStart = -32099,
+    ServerErrorEnd = -32000,
+
+    /// Error code indicating that a server received a notification or
+    /// request before the server has received the `initialize` request.
+    ServerNotInitialized = -32002,
+    UnknownErrorCode = -32001,
+
+    // Defined by the protocol:
+    /// The client has canceled a request and a server has detected
+    /// the cancel.
+    RequestCanceled = -32800,
+
+    /// The server detected that the content of a document got
+    /// modified outside normal conditions. A server should
+    /// NOT send this error code if it detects a content change
+    /// in it unprocessed messages. The result even computed
+    /// on an older state might still be useful for the client.
+    ///
+    /// If a client decides that a result is not of any use anymore
+    /// the client should cancel the request.
+    ContentModified = -32801,
+
+    /// The server cancelled the request. This error code should
+    /// only be used for requests that explicitly support being
+    /// server cancellable.
+    ///
+    /// @since 3.17.0
+    ServerCancelled = -32802,
+
+    /// A request failed but it was syntactically correct, e.g the
+    /// method name was known and the parameters were valid. The error
+    /// message should contain human readable information about why
+    /// the request failed.
+    ///
+    /// @since 3.17.0
+    RequestFailed = -32803,
+}
+
+impl ErrorCode {
+    fn try_from_i32(code: i32) -> Result<ErrorCode, ()> {
+        match code {
+            -32700 => Ok(ErrorCode::ParseError),
+            -32600 => Ok(ErrorCode::InvalidRequest),
+            -32601 => Ok(ErrorCode::MethodNotFound),
+            -32602 => Ok(ErrorCode::InvalidParams),
+            -32603 => Ok(ErrorCode::InternalError),
+            -32099 => Ok(ErrorCode::ServerErrorStart),
+            -32000 => Ok(ErrorCode::ServerErrorEnd),
+            -32002 => Ok(ErrorCode::ServerNotInitialized),
+            -32001 => Ok(ErrorCode::UnknownErrorCode),
+            -32800 => Ok(ErrorCode::RequestCanceled),
+            -32801 => Ok(ErrorCode::ContentModified),
+            -32802 => Ok(ErrorCode::ServerCancelled),
+            -32803 => Ok(ErrorCode::RequestFailed),
+            _ => Err(()),
+        }
+    }
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct Notification {
+    pub method: String,
+    #[serde(default = "serde_json::Value::default")]
+    #[serde(skip_serializing_if = "serde_json::Value::is_null")]
+    pub params: serde_json::Value,
+}
+
+impl Message {
+    pub async fn read<R: AsyncBufRead + Unpin + ?Sized>(r: &mut R) -> io::Result<Option<Message>> {
+        Message::_read(r).await
+    }
+
+    async fn _read<R: AsyncBufRead + Unpin + ?Sized>(r: &mut R) -> io::Result<Option<Message>> {
+        let text = match read_msg_text(r).await? {
+            None => return Ok(None),
+            Some(text) => text,
+        };
+        let msg = serde_json::from_str(&text)?;
+        Ok(Some(msg))
+    }
+
+    pub async fn write<W: AsyncWrite + Unpin>(self, w: &mut W) -> io::Result<()> {
+        self._write(w).await
+    }
+
+    async fn _write<W: AsyncWrite + Unpin>(self, w: &mut W) -> io::Result<()> {
+        #[derive(Serialize)]
+        struct JsonRpc {
+            jsonrpc: &'static str,
+            #[serde(flatten)]
+            msg: Message,
+        }
+        let text = serde_json::to_string(&JsonRpc {
+            jsonrpc: "2.0",
+            msg: self,
+        })?;
+        write_msg_text(w, &text).await
+    }
+}
+
+impl Response {
+    pub fn new_ok<R: Serialize>(id: RequestId, result: R) -> Response {
+        Response {
+            id,
+            content: ResponseContent::Result(serde_json::to_value(result).unwrap()),
+        }
+    }
+    pub fn new_err(id: RequestId, code: i32, message: String) -> Response {
+        let error = ResponseError {
+            code,
+            message,
+            data: None,
+        };
+        Response {
+            id,
+            content: ResponseContent::Error(error),
+        }
+    }
+
+    pub fn extract<P: DeserializeOwned>(self) -> Result<(RequestId, P), ExtractError> {
+        match self.content {
+            ResponseContent::Result(result) => match serde_json::from_value(result) {
+                Ok(params) => Ok((self.id, params)),
+                Err(error) => Err(ExtractError::JsonError {
+                    msg_type: "response".to_owned(),
+                    method: None,
+                    error,
+                }),
+            },
+            ResponseContent::Error(error) => Err(ExtractError::ResponseError { error }),
+        }
+    }
+}
+
+impl Request {
+    pub fn new<P: Serialize>(id: RequestId, method: String, params: P) -> Request {
+        Request {
+            id,
+            method,
+            params: serde_json::to_value(params).unwrap(),
+        }
+    }
+
+    pub fn extract<P: DeserializeOwned>(
+        self,
+        method: &str,
+    ) -> Result<(RequestId, P), ExtractError> {
+        if self.method != method {
+            return Err(ExtractError::MethodMismatch(self.method, method.to_owned()));
+        }
+        match serde_json::from_value(self.params) {
+            Ok(params) => Ok((self.id, params)),
+            Err(error) => Err(ExtractError::JsonError {
+                msg_type: "request".to_owned(),
+                method: Some(self.method),
+                error,
+            }),
+        }
+    }
+}
+
+impl Notification {
+    pub fn new(method: String, params: impl Serialize) -> Notification {
+        Notification {
+            method,
+            params: serde_json::to_value(params).unwrap(),
+        }
+    }
+
+    pub fn extract<P: DeserializeOwned>(self, method: &str) -> Result<P, ExtractError> {
+        if self.method != method {
+            return Err(ExtractError::MethodMismatch(self.method, method.to_owned()));
+        }
+        match serde_json::from_value(self.params) {
+            Ok(params) => Ok(params),
+            Err(error) => Err(ExtractError::JsonError {
+                msg_type: "notification".to_owned(),
+                method: Some(self.method),
+                error,
+            }),
+        }
+    }
+
+    pub(crate) fn is_exit(&self) -> bool {
+        self.method == "exit"
+    }
+}
+
+async fn read_msg_text<R: AsyncBufRead + Unpin + ?Sized>(
+    inp: &mut R,
+) -> io::Result<Option<String>> {
+    fn invalid_data(error: impl Into<Box<dyn std::error::Error + Send + Sync>>) -> io::Error {
+        io::Error::new(io::ErrorKind::InvalidData, error)
+    }
+    macro_rules! invalid_data {
+        ($($tt:tt)*) => (invalid_data(format!($($tt)*)))
+    }
+
+    let mut size = None;
+    let mut buf = String::new();
+    loop {
+        buf.clear();
+        if inp.read_line(&mut buf).await? == 0 {
+            return Ok(None);
+        }
+        if !buf.ends_with("\r\n") {
+            return Err(invalid_data!("malformed header: {:?}", buf));
+        }
+        let buf = &buf[..buf.len() - 2];
+        if buf.is_empty() {
+            break;
+        }
+        let mut parts = buf.splitn(2, ": ");
+        let header_name = parts.next().unwrap();
+        let header_value = parts
+            .next()
+            .ok_or_else(|| invalid_data!("malformed header: {:?}", buf))?;
+        if header_name.eq_ignore_ascii_case("Content-Length") {
+            size = Some(header_value.parse::<usize>().map_err(invalid_data)?);
+        }
+    }
+    let size: usize = size.ok_or_else(|| invalid_data!("no Content-Length"))?;
+    let mut buf = buf.into_bytes();
+    buf.resize(size, 0);
+    inp.read_exact(&mut buf).await?;
+    let buf = String::from_utf8(buf).map_err(invalid_data)?;
+    debug!("< {}", buf);
+    Ok(Some(buf))
+}
+
+async fn write_msg_text<W: AsyncWrite + Unpin>(out: &mut W, msg: &str) -> io::Result<()> {
+    debug!("> {}", msg);
+    out.write_all(format!("Content-Length: {}\r\n\r\n", msg.len()).as_bytes())
+        .await?;
+    out.write_all(msg.as_bytes()).await?;
+    out.flush().await?;
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::msg::{ResponseContent, ResponseError};
+
+    use super::{Message, Notification, Request, RequestId, Response};
+
+    #[test]
+    fn shutdown_with_explicit_null() {
+        let text = "{\"jsonrpc\": \"2.0\",\"id\": 3,\"method\": \"shutdown\", \"params\": null }";
+        let msg: Message = serde_json::from_str(text).unwrap();
+
+        assert!(
+            matches!(msg, Message::Request(req) if req.id == 3.into() && req.method == "shutdown")
+        );
+    }
+
+    #[test]
+    fn shutdown_with_no_params() {
+        let text = "{\"jsonrpc\": \"2.0\",\"id\": 3,\"method\": \"shutdown\"}";
+        let msg: Message = serde_json::from_str(text).unwrap();
+
+        assert!(
+            matches!(msg, Message::Request(req) if req.id == 3.into() && req.method == "shutdown")
+        );
+    }
+
+    #[test]
+    fn notification_with_explicit_null() {
+        let text = "{\"jsonrpc\": \"2.0\",\"method\": \"exit\", \"params\": null }";
+        let msg: Message = serde_json::from_str(text).unwrap();
+
+        assert!(matches!(msg, Message::Notification(not) if not.method == "exit"));
+    }
+
+    #[test]
+    fn notification_with_no_params() {
+        let text = "{\"jsonrpc\": \"2.0\",\"method\": \"exit\"}";
+        let msg: Message = serde_json::from_str(text).unwrap();
+
+        assert!(matches!(msg, Message::Notification(not) if not.method == "exit"));
+    }
+
+    #[test]
+    fn serialize_request_with_null_params() {
+        let msg = Message::Request(Request {
+            id: RequestId::from(3),
+            method: "shutdown".into(),
+            params: serde_json::Value::Null,
+        });
+        let serialized = serde_json::to_string(&msg).unwrap();
+
+        assert_eq!("{\"id\":3,\"method\":\"shutdown\"}", serialized);
+    }
+
+    #[test]
+    fn serialize_notification_with_null_params() {
+        let msg = Message::Notification(Notification {
+            method: "exit".into(),
+            params: serde_json::Value::Null,
+        });
+        let serialized = serde_json::to_string(&msg).unwrap();
+
+        assert_eq!("{\"method\":\"exit\"}", serialized);
+    }
+
+    #[test]
+    fn serialize_response_with_null_result() {
+        let text = "{\"id\":1,\"result\":null}";
+        let msg = Message::Response(Response {
+            id: RequestId::from(1),
+            content: ResponseContent::Result(serde_json::Value::Null),
+        });
+        let serialized = serde_json::to_string(&msg).unwrap();
+
+        assert_eq!(text, serialized);
+    }
+
+    #[test]
+    fn serialize_response_with_error() {
+        let text = "{\"id\":1,\"error\":{\"code\":-32603,\"message\":\"some error message\"}}";
+        let msg = Message::Response(Response {
+            id: RequestId::from(1),
+            content: ResponseContent::Error(ResponseError {
+                code: -32603,
+                message: "some error message".to_owned(),
+                data: None,
+            }),
+        });
+        let serialized = serde_json::to_string(&msg).unwrap();
+
+        assert_eq!(text, serialized);
+    }
+}
--- a/crates/lsp-client/src/res_queue.rs
+++ b/crates/lsp-client/src/res_queue.rs
@ -0,0 +1,41 @@
+use std::collections::HashMap;
+
+use serde::Serialize;
+
+use crate::msg::{Request, RequestId};
+
+/// Manages the set of pending responses
+#[derive(Debug)]
+pub struct ResQueue<O> {
+    pub outgoing: Outgoing<O>,
+}
+
+impl<O> Default for ResQueue<O> {
+    fn default() -> ResQueue<O> {
+        ResQueue {
+            outgoing: Outgoing {
+                next_id: 0,
+                pending: HashMap::default(),
+            },
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct Outgoing<O> {
+    next_id: i32,
+    pending: HashMap<RequestId, O>,
+}
+
+impl<O> Outgoing<O> {
+    pub fn register<P: Serialize>(&mut self, method: String, params: P, data: O) -> Request {
+        let id = RequestId::from(self.next_id);
+        self.pending.insert(id.clone(), data);
+        self.next_id += 1;
+        Request::new(id, method, params)
+    }
+
+    pub fn complete(&mut self, id: RequestId) -> Option<O> {
+        self.pending.remove(&id)
+    }
+}
--- a/crates/lsp-client/src/server.rs
+++ b/crates/lsp-client/src/server.rs
@ -0,0 +1,148 @@
+use std::{io, path::PathBuf, process::Stdio};
+
+use tokio::{
+    io::{BufReader, BufWriter},
+    process::{Child, Command},
+    sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender},
+    task::JoinHandle,
+};
+use tracing::{debug, error};
+
+use crate::msg::Message;
+use crate::{
+    client::Connection,
+    error::{Error, Result},
+};
+
+pub struct Server {
+    threads: IoThreads,
+}
+
+impl Server {
+    pub fn build() -> ServerBuilder {
+        ServerBuilder {
+            binary_path: None,
+            command: None,
+            transport: Transport::default(),
+        }
+    }
+
+    /// join server's threads to the current thread
+    pub async fn join(self) -> Result<()> {
+        self.threads.join().await?;
+        Ok(())
+    }
+}
+
+#[derive(Default)]
+pub enum Transport {
+    #[default]
+    Stdio,
+    Socket,
+}
+
+pub struct ServerBuilder {
+    binary_path: Option<PathBuf>,
+    command: Option<Command>,
+    transport: Transport,
+}
+
+impl ServerBuilder {
+    pub fn binary_path(mut self, binary_path: PathBuf) -> Self {
+        self.binary_path = Some(binary_path);
+        self
+    }
+
+    pub fn command(mut self, command: Command) -> Self {
+        self.command = Some(command);
+        self
+    }
+
+    pub fn transport(mut self, transport: Transport) -> Self {
+        self.transport = transport;
+        self
+    }
+
+    pub async fn start(self) -> Result<(Connection, Server)> {
+        let mut command = if let Some(command) = self.command {
+            command
+        } else if let Some(path) = self.binary_path {
+            Command::new(path)
+        } else {
+            return Err(Error::MissingBinaryPath);
+        };
+        match self.transport {
+            Transport::Stdio => {
+                let child = command
+                    .stdin(Stdio::piped())
+                    .stdout(Stdio::piped())
+                    .spawn()?;
+                let (sender, receiver, threads) = stdio(child);
+                Ok((Connection { sender, receiver }, Server { threads }))
+            }
+            Transport::Socket => {
+                todo!("socket transport not implemented");
+            }
+        }
+    }
+}
+
+fn stdio(
+    mut child: Child,
+) -> (
+    UnboundedSender<Message>,
+    UnboundedReceiver<Message>,
+    IoThreads,
+) {
+    let (writer_sender, mut writer_receiver) = unbounded_channel::<Message>();
+    let writer = tokio::spawn(async move {
+        let stdin = child.stdin.take().unwrap();
+        let mut bufr = BufWriter::new(stdin);
+        while let Some(it) = writer_receiver.recv().await {
+            let is_exit = matches!(&it, Message::Notification(n) if n.is_exit());
+            debug!("sending message {:#?}", it);
+            it.write(&mut bufr).await?;
+            if is_exit {
+                break;
+            }
+        }
+        Ok(())
+    });
+    let (reader_sender, reader_receiver) = unbounded_channel::<Message>();
+    let reader = tokio::spawn(async move {
+        let stdout = child.stdout.take().unwrap();
+        let mut reader = BufReader::new(stdout);
+        while let Some(msg) = Message::read(&mut reader).await? {
+            debug!("received message {:#?}", msg);
+            reader_sender
+                .send(msg)
+                .expect("receiver was dropped, failed to send a message");
+        }
+        Ok(())
+    });
+    let threads = IoThreads { reader, writer };
+    (writer_sender, reader_receiver, threads)
+}
+
+pub struct IoThreads {
+    reader: JoinHandle<io::Result<()>>,
+    writer: JoinHandle<io::Result<()>>,
+}
+
+impl IoThreads {
+    pub async fn join(self) -> io::Result<()> {
+        match self.reader.await? {
+            Ok(_) => (),
+            Err(err) => {
+                error!("reader err: {err}");
+            }
+        }
+        match self.writer.await? {
+            Ok(_) => (),
+            Err(err) => {
+                error!("writer err: {err}");
+            }
+        }
+        Ok(())
+    }
+}
--- a/crates/testbed/Cargo.toml
+++ b/crates/testbed/Cargo.toml
@ -0,0 +1,35 @@
+[package]
+name = "testbed"
+version = "0.1.0"
+resolver = "2"
+edition.workspace = true
+license.workspace = true
+authors.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1"
+clap = { version = "4", features = ["derive"] }
+futures = "0.3"
+futures-util = "0.3"
+home = "0.5"
+lsp-client = { path = "../lsp-client" }
+lsp-types = "0.94"
+rand = "0.8"
+reqwest = { version = "0.11", features = ["stream"] }
+ropey = "1.6"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+serde_yaml = "0.9"
+tempfile = "3"
+tokio = "1"
+tokio-util = { version = "0.7", features = ["compat"] }
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
+url = "2"
+zip = "0.6"
+
+[dependencies.uuid]
+version = "1.5"
+features = ["v4", "fast-rng", "serde"]
--- a/crates/testbed/README.md
+++ b/crates/testbed/README.md
@ -0,0 +1,80 @@
+# testbed
+
+testbed is a framework to evaluate the efficiency of the completions generated by llm-ls and the underlying model.
+
+It works by first making holes in files, then generates completions for a given list of repositories and finally runs the associated unit tests.
+
+The result is a table containing a line for each repository and the total with the average percentage of successful unit tests.
+
+Here is a simplified pseudo code algorithm for testbed:
+```
+read the repositories file
+read the holes file(s)
+for each repository
+  spawn a thread
+  setup the repository
+  for each hole
+    make the hole as specified by the file
+    generate completions
+    build the code
+    run the tests
+print results
+```
+
+## Running testbed
+
+Before running testbed you will need to create a repositories file. It is a YAML file containing a list of repositories to test.
+
+It also contains the parameters to the `llm-ls/getCompletions` request.
+
+Repositories can either be sourced from your local storage or Github.
+
+You can check the repositories files at the root of the crate to see the full structure.
+
+### Generating holes
+
+Before running testbed, you will need to generate a holes file for each repository. To generate a holes file run testbed with the `-g` option. You can specify the number of holes to make with `-n <number>`. It will take the list of repositories in your YAML file and create the associated files at the defined path.
+
+### Setup
+
+testbed runs completions for each repository in parallel. It will first create a temporary directory, then copy or download the repository's source files to that location and finally run the setup commands.
+
+Setup commands are useful to install dependencies.
+
+```yaml
+setup_commands:
+  - ["python3", ["-m", "venv", "huggingface_hub-venv"]]
+  - ["huggingface_hub-venv/bin/python3", ["-m", "pip", "install", ".[dev]"]]
+```
+
+### Build
+
+Before running the tests, testbed will run a build command to check if the code is valid.
+
+To configure the commands, you can do the following:
+
+```yaml
+build_command: huggingface_hub-venv/bin/python3
+build_args: ["-m", "compileall", "-q", "."]
+```
+
+### Runners
+
+testbed supports two test runners at the moment:
+- cargo
+- pytest
+
+To configure your runner, you have the following options:
+```yaml
+runner: pytest
+runner_command: huggingface_hub-venv/bin/python3
+runner_extra_args:
+  - "-k"
+  - "_utils_ and not _utils_cache and not _utils_http and not paginate and not git"
+```
+
+You can override the runners command with `runner_command`, which is useful when setting up dependencies in a venv.
+
+## References
+
+testbed was inspired by [human-eval](https://github.com/openai/human-eval) and [RepoEval](https://arxiv.org/abs/2303.12570).
--- a/crates/testbed/holes/async-executor-smol.json
+++ b/crates/testbed/holes/async-executor-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":38,"character":6},"file":"src/lib.rs"},{"cursor":{"line":568,"character":8},"file":"src/lib.rs"},{"cursor":{"line":271,"character":11},"file":"src/lib.rs"},{"cursor":{"line":887,"character":14},"file":"src/lib.rs"},{"cursor":{"line":697,"character":12},"file":"src/lib.rs"},{"cursor":{"line":707,"character":6},"file":"src/lib.rs"},{"cursor":{"line":240,"character":10},"file":"src/lib.rs"},{"cursor":{"line":387,"character":13},"file":"src/lib.rs"},{"cursor":{"line":501,"character":8},"file":"src/lib.rs"},{"cursor":{"line":178,"character":6},"file":"src/lib.rs"}]
--- a/crates/testbed/holes/async-executor.json
+++ b/crates/testbed/holes/async-executor.json
--- a/crates/testbed/holes/cached-smol.json
+++ b/crates/testbed/holes/cached-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":115,"character":0},"file":"src/stores/mod.rs"},{"cursor":{"line":136,"character":1},"file":"src/stores/expiring_value_cache.rs"},{"cursor":{"line":92,"character":4},"file":"src/lru_list.rs"},{"cursor":{"line":280,"character":14},"file":"src/stores/timed.rs"},{"cursor":{"line":294,"character":14},"file":"src/stores/unbound.rs"},{"cursor":{"line":267,"character":1},"file":"src/stores/unbound.rs"},{"cursor":{"line":142,"character":0},"file":"src/stores/expiring_value_cache.rs"},{"cursor":{"line":370,"character":12},"file":"src/stores/sized.rs"},{"cursor":{"line":280,"character":10},"file":"src/proc_macro.rs"},{"cursor":{"line":177,"character":5},"file":"src/stores/timed_sized.rs"}]
--- a/crates/testbed/holes/cached.json
+++ b/crates/testbed/holes/cached.json
--- a/crates/testbed/holes/constrandom-smol.json
+++ b/crates/testbed/holes/constrandom-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":12,"character":3},"file":"src/lib.rs"},{"cursor":{"line":12,"character":11},"file":"src/lib.rs"},{"cursor":{"line":12,"character":5},"file":"src/lib.rs"},{"cursor":{"line":0,"character":4},"file":"src/lib.rs"},{"cursor":{"line":12,"character":3},"file":"src/lib.rs"},{"cursor":{"line":12,"character":6},"file":"src/lib.rs"},{"cursor":{"line":0,"character":10},"file":"src/lib.rs"},{"cursor":{"line":0,"character":3},"file":"src/lib.rs"},{"cursor":{"line":12,"character":4},"file":"src/lib.rs"},{"cursor":{"line":0,"character":10},"file":"src/lib.rs"}]
--- a/crates/testbed/holes/constrandom.json
+++ b/crates/testbed/holes/constrandom.json
--- a/crates/testbed/holes/fastapi-smol.json
+++ b/crates/testbed/holes/fastapi-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":1300,"character":8},"file":"fastapi/param_functions.py"},{"cursor":{"line":0,"character":12},"file":"fastapi/middleware/trustedhost.py"},{"cursor":{"line":1,"character":5},"file":"fastapi/middleware/httpsredirect.py"},{"cursor":{"line":177,"character":14},"file":"fastapi/openapi/docs.py"},{"cursor":{"line":37,"character":5},"file":"fastapi/security/http.py"},{"cursor":{"line":0,"character":7},"file":"fastapi/testclient.py"},{"cursor":{"line":647,"character":6},"file":"fastapi/param_functions.py"},{"cursor":{"line":419,"character":0},"file":"fastapi/_compat.py"},{"cursor":{"line":100,"character":1},"file":"fastapi/exceptions.py"},{"cursor":{"line":107,"character":14},"file":"fastapi/security/oauth2.py"}]
--- a/crates/testbed/holes/fastapi.json
+++ b/crates/testbed/holes/fastapi.json
--- a/crates/testbed/holes/helix-smol.json
+++ b/crates/testbed/holes/helix-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":73,"character":10},"file":"helix-core/src/chars.rs"},{"cursor":{"line":257,"character":11},"file":"helix-dap/src/types.rs"},{"cursor":{"line":39,"character":14},"file":"helix-view/src/info.rs"},{"cursor":{"line":116,"character":12},"file":"helix-term/src/ui/mod.rs"},{"cursor":{"line":1,"character":14},"file":"helix-term/src/ui/text.rs"},{"cursor":{"line":2,"character":5},"file":"helix-core/src/config.rs"},{"cursor":{"line":151,"character":14},"file":"helix-view/src/gutter.rs"},{"cursor":{"line":11,"character":10},"file":"helix-term/src/ui/lsp.rs"},{"cursor":{"line":18,"character":0},"file":"helix-term/src/ui/text.rs"},{"cursor":{"line":230,"character":3},"file":"helix-term/src/ui/markdown.rs"}]
--- a/crates/testbed/holes/helix.json
+++ b/crates/testbed/holes/helix.json
--- a/crates/testbed/holes/huggingface_hub-smol.json
+++ b/crates/testbed/holes/huggingface_hub-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":485,"character":14},"file":"src/huggingface_hub/__init__.py"},{"cursor":{"line":134,"character":9},"file":"src/huggingface_hub/_space_api.py"},{"cursor":{"line":122,"character":3},"file":"src/huggingface_hub/inference_api.py"},{"cursor":{"line":1485,"character":0},"file":"src/huggingface_hub/file_download.py"},{"cursor":{"line":184,"character":4},"file":"src/huggingface_hub/inference/_common.py"},{"cursor":{"line":157,"character":13},"file":"src/huggingface_hub/utils/_validators.py"},{"cursor":{"line":32,"character":10},"file":"src/huggingface_hub/utils/_paths.py"},{"cursor":{"line":1596,"character":11},"file":"src/huggingface_hub/file_download.py"},{"cursor":{"line":20,"character":4},"file":"src/huggingface_hub/commands/__init__.py"},{"cursor":{"line":47,"character":8},"file":"src/huggingface_hub/commands/user.py"}]
--- a/crates/testbed/holes/huggingface_hub.json
+++ b/crates/testbed/holes/huggingface_hub.json
--- a/crates/testbed/holes/io-ts-smol.json
+++ b/crates/testbed/holes/io-ts-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":54,"character":12},"file":"src/Type.ts"},{"cursor":{"line":108,"character":1},"file":"src/Eq.ts"},{"cursor":{"line":6,"character":4},"file":"src/Reporter.ts"},{"cursor":{"line":98,"character":7},"file":"src/Type.ts"},{"cursor":{"line":88,"character":1},"file":"src/Type.ts"},{"cursor":{"line":140,"character":11},"file":"src/Eq.ts"},{"cursor":{"line":52,"character":2},"file":"src/Kleisli.ts"},{"cursor":{"line":47,"character":2},"file":"src/PathReporter.ts"},{"cursor":{"line":109,"character":11},"file":"src/Schemable.ts"},{"cursor":{"line":484,"character":1},"file":"src/TaskDecoder.ts"}]
--- a/crates/testbed/holes/io-ts.json
+++ b/crates/testbed/holes/io-ts.json
--- a/crates/testbed/holes/lance-smol.json
+++ b/crates/testbed/holes/lance-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":136,"character":0},"file":"rust/lance/src/utils/sql.rs"},{"cursor":{"line":121,"character":7},"file":"rust/lance-index/src/vector/utils.rs"},{"cursor":{"line":182,"character":1},"file":"rust/lance-linalg/src/simd/i32.rs"},{"cursor":{"line":527,"character":2},"file":"rust/lance-core/src/io/writer.rs"},{"cursor":{"line":123,"character":0},"file":"rust/lance/benches/scan.rs"},{"cursor":{"line":14,"character":1},"file":"rust/lance-core/src/utils.rs"},{"cursor":{"line":211,"character":2},"file":"rust/lance-core/src/encodings/dictionary.rs"},{"cursor":{"line":508,"character":8},"file":"rust/lance-core/src/datatypes/field.rs"},{"cursor":{"line":624,"character":7},"file":"rust/lance/src/dataset/cleanup.rs"},{"cursor":{"line":396,"character":5},"file":"rust/lance/src/index/vector/opq.rs"}]
--- a/crates/testbed/holes/lance.json
+++ b/crates/testbed/holes/lance.json
--- a/crates/testbed/holes/lancedb-smol.json
+++ b/crates/testbed/holes/lancedb-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":0,"character":6},"file":"rust/vectordb/src/io.rs"},{"cursor":{"line":65,"character":4},"file":"rust/vectordb/src/utils.rs"},{"cursor":{"line":138,"character":7},"file":"rust/vectordb/src/data/inspect.rs"},{"cursor":{"line":25,"character":3},"file":"rust/vectordb/src/error.rs"},{"cursor":{"line":479,"character":3},"file":"rust/vectordb/src/table.rs"},{"cursor":{"line":133,"character":10},"file":"rust/vectordb/src/data/sanitize.rs"},{"cursor":{"line":54,"character":1},"file":"rust/vectordb/src/utils.rs"},{"cursor":{"line":138,"character":9},"file":"rust/vectordb/src/table.rs"},{"cursor":{"line":34,"character":10},"file":"rust/vectordb/src/database.rs"},{"cursor":{"line":159,"character":1},"file":"rust/vectordb/src/data/inspect.rs"}]
--- a/crates/testbed/holes/lancedb.json
+++ b/crates/testbed/holes/lancedb.json
--- a/crates/testbed/holes/picklescan-smol.json
+++ b/crates/testbed/holes/picklescan-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":374,"character":3},"file":"src/picklescan/scanner.py"},{"cursor":{"line":7,"character":4},"file":"src/picklescan/torch.py"},{"cursor":{"line":0,"character":5},"file":"src/picklescan/__main__.py"},{"cursor":{"line":0,"character":3},"file":"src/picklescan/torch.py"},{"cursor":{"line":351,"character":10},"file":"src/picklescan/scanner.py"},{"cursor":{"line":2,"character":6},"file":"src/picklescan/__main__.py"},{"cursor":{"line":192,"character":10},"file":"src/picklescan/scanner.py"},{"cursor":{"line":0,"character":9},"file":"src/picklescan/__init__.py"},{"cursor":{"line":2,"character":2},"file":"src/picklescan/__main__.py"},{"cursor":{"line":33,"character":3},"file":"src/picklescan/cli.py"}]
--- a/crates/testbed/holes/picklescan.json
+++ b/crates/testbed/holes/picklescan.json
--- a/crates/testbed/holes/simple.json
+++ b/crates/testbed/holes/simple.json
--- a/crates/testbed/holes/starlette-smol.json
+++ b/crates/testbed/holes/starlette-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":3,"character":9},"file":"starlette/_utils.py"},{"cursor":{"line":0,"character":10},"file":"starlette/__init__.py"},{"cursor":{"line":38,"character":2},"file":"starlette/config.py"},{"cursor":{"line":23,"character":14},"file":"starlette/_utils.py"},{"cursor":{"line":393,"character":5},"file":"starlette/datastructures.py"},{"cursor":{"line":114,"character":2},"file":"starlette/testclient.py"},{"cursor":{"line":187,"character":13},"file":"starlette/templating.py"},{"cursor":{"line":79,"character":3},"file":"starlette/status.py"},{"cursor":{"line":129,"character":3},"file":"starlette/middleware/cors.py"},{"cursor":{"line":22,"character":6},"file":"starlette/middleware/sessions.py"}]
--- a/crates/testbed/holes/starlette.json
+++ b/crates/testbed/holes/starlette.json
--- a/crates/testbed/holes/zod-smol.json
+++ b/crates/testbed/holes/zod-smol.json
@ -0,0 +1 @@
+[{"cursor":{"line":165,"character":10},"file":"src/helpers/util.ts"},{"cursor":{"line":147,"character":7},"file":"src/ZodError.ts"},{"cursor":{"line":0,"character":14},"file":"src/ZodError.ts"},{"cursor":{"line":166,"character":9},"file":"src/helpers/util.ts"},{"cursor":{"line":5,"character":5},"file":"src/helpers/enumUtil.ts"},{"cursor":{"line":10,"character":2},"file":"src/errors.ts"},{"cursor":{"line":134,"character":12},"file":"src/benchmarks/primitives.ts"},{"cursor":{"line":2,"character":10},"file":"src/benchmarks/index.ts"},{"cursor":{"line":33,"character":5},"file":"src/benchmarks/realworld.ts"},{"cursor":{"line":12,"character":13},"file":"src/benchmarks/index.ts"}]
--- a/crates/testbed/holes/zod.json
+++ b/crates/testbed/holes/zod.json
--- a/crates/testbed/repositories-ci.yaml
+++ b/crates/testbed/repositories-ci.yaml
@ -0,0 +1,247 @@
+---
+context_window: 2000
+fim:
+  enabled: true
+  prefix: <fim_prefix>
+  middle: <fim_middle>
+  suffix: <fim_suffix>
+model: bigcode/starcoder
+request_params:
+  max_new_tokens: 150
+  temperature: 0.2
+  do_sample: true
+  top_p: 0.95
+tls_skip_verify_insecure: false
+tokenizer_config:
+  repository: bigcode/starcoder
+tokens_to_clear: ["<|endoftext|>"]
+repositories:
+  - source:
+      type: local
+      path: simple
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    holes_file: simple.json
+  - source:
+      type: github
+      owner: mmaitre314
+      name: picklescan
+      revision: 40001cd1caa9e041b1bce1b80f3707056cd8be52
+      src_path: src/picklescan
+    build_command: picklescan-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: picklescan-venv/bin/python3
+    setup_commands:
+      - ["python3", ["-m", "venv", "picklescan-venv"]]
+      - ["picklescan-venv/bin/python3", ["-m", "pip", "install", "."]]
+      - ["picklescan-venv/bin/python3", ["-m", "pip", "install", "-r", "requirements.txt"]]
+    holes_file: picklescan-smol.json
+  - source:
+      type: github
+      owner: huggingface
+      name: huggingface_hub
+      revision: a48eb89d4186bc84bca67b117cf29a0ee0b69774
+      src_path: src/huggingface_hub
+    build_command: huggingface_hub-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: huggingface_hub-venv/bin/python3
+    runner_extra_args:
+      - "-k"
+      - "_utils_ and not _utils_cache and not _utils_http and not paginate and not git"
+    setup_commands:
+      - ["python3", ["-m", "venv", "huggingface_hub-venv"]]
+      - ["huggingface_hub-venv/bin/python3", ["-m", "pip", "install", ".[dev]"]]
+    holes_file: huggingface_hub-smol.json
+  - source:
+      type: github
+      owner: tiangolo
+      name: fastapi
+      revision: e4b21c6eab7cd58caf3c6c492ea1ce7945425dd1
+      src_path: fastapi
+    build_command: fastapi-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: fastapi-venv/bin/python3
+    setup_commands:
+      - ["python3", ["-m", "venv", "fastapi-venv"]]
+      - ["fastapi-venv/bin/python3", ["-m", "pip", "install", "--upgrade", "pip"]]
+      - ["fastapi-venv/bin/python3", ["-m", "pip", "install", "-r", "requirements-tests.txt"]]
+      - ["fastapi-venv/bin/python3", ["-m", "pip", "install", "pydantic"]]
+    holes_file: fastapi-smol.json
+  - source:
+      type: github
+      owner: encode
+      name: starlette
+      revision: 657e7e7b728e13dc66cc3f77dffd00a42545e171
+      src_path: starlette
+    build_command: starlette-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: starlette-venv/bin/python3
+    setup_commands:
+      - ["python3", ["-m", "venv", "starlette-venv"]]
+      - ["starlette-venv/bin/python3", ["-m", "pip", "install", "--upgrade", "pip"]]
+      - ["starlette-venv/bin/python3", ["-m", "pip", "install", "-r", "requirements.txt"]]
+    holes_file: starlette-smol.json
+  - source:
+      type: github
+      owner: lancedb
+      name: lancedb
+      revision: 682e95fa8388d5839c8a782063beb307c4fca4bc
+      src_path: rust/vectordb/src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    # this is to avoid skewing the average hole completion time
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: lancedb-smol.json
+  - source:
+      type: github
+      owner: lancedb
+      name: lance
+      revision: c8ee16ec31eeca884c78bd4a400404aaa994ed46
+      src_path: rust
+      exclude_paths:
+        - .cargo
+        - .vscode
+        - .gitignore
+        - README.md
+        - img.png
+    build_command: cargo
+    build_args: ["build", "--all-features", "--manifest-path", "rust/Cargo.toml"]
+    language: rust
+    runner: cargo
+    runner_extra_args: ["--all-features", "--manifest-path", "rust/Cargo.toml"]
+    setup_commands:
+      - ["rm", ["rust/lance-core/protos", "rust/lance-index/protos"]]
+      - ["ln", ["-s", "../../protos", "rust/lance-core/protos"]]
+      - ["ln", ["-s", "../../protos", "rust/lance-index/protos"]]
+      - ["cargo", ["build", "--all-features", "--manifest-path", "rust/Cargo.toml"]]
+    holes_file: lance-smol.json
+  - source:
+      type: github
+      owner: tkaitchuck
+      name: constrandom
+      revision: e9f560ba14e09ff9db9caca3f2dfa3ff52cc96de
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: constrandom-smol.json
+  - source:
+      type: github
+      owner: jaemk
+      name: cached
+      revision: b1015561fb121c3e5698183c39df202e5a83994a
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: cached-smol.json
+  - source:
+      type: github
+      owner: smol-rs
+      name: async-executor
+      revision: b91875e73bd9aec582e099d8c792514381fc8d0f
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: async-executor-smol.json
+  - source:
+      type: github
+      owner: gcanti
+      name: io-ts
+      revision: 616583de0198632cad7820ed8701b15f654c7fd2
+      src_path: src
+    build_command: npm
+    build_args: ["run", "build"]
+    language: typescript
+    runner: vitest
+    setup_commands:
+      - ["npm", ["install"]]
+    holes_file: io-ts-smol.json
+  - source:
+      type: github
+      owner: colinhacks
+      name: zod
+      revision: 481c9ba1932203777f6fe9497bb2a8a1d33c620e
+      src_path: src
+      exclude_paths: ["src/__tests__"]
+    build_command: yarn
+    build_args: ["build"]
+    language: typescript
+    runner: jest
+    runner_command: yarn
+    runner_args: ["test", "--", "--no-colors"]
+    setup_commands:
+      - ["yarn", ["install"]]
+    holes_file: zod-smol.json
+  - source:
+      type: github
+      owner: helix-editor
+      name: helix
+      revision: ae6a0a9cfd377fbfa494760282498cf2ca322782
+      exclude_paths:
+        - .cargo
+        - .github
+        - book
+        - contrib
+        - docs
+        - helix-core/tests
+        - helix-term/tests
+        - helix-tui/tests
+        - helix-view/tests
+        - runtime
+        - xtask
+        - .envrc
+        - .gitattributes
+        - .gitignore
+        - .ignore
+        - CHANGELOG.md
+        - Cargo.lock
+        - LICENSE
+        - README.md
+        - VERSION
+        - base16_theme.toml
+        - default.nix
+        - flake.lock
+        - flake.nix
+        - grammars.nix
+        - languages.toml
+        - logo.svg
+        - logo_dark.svg
+        - logo_light.svg
+        - rust-toolchain.toml
+        - rustfmt.toml
+        - screenshot.png
+        - shell.nix
+        - theme.toml
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    runner_extra_args: ["--workspace"]
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: helix-smol.json
--- a/crates/testbed/repositories.yaml
+++ b/crates/testbed/repositories.yaml
@ -0,0 +1,247 @@
+---
+context_window: 2000
+fim:
+  enabled: true
+  prefix: <fim_prefix>
+  middle: <fim_middle>
+  suffix: <fim_suffix>
+model: bigcode/starcoder
+request_params:
+  max_new_tokens: 150
+  temperature: 0.2
+  do_sample: true
+  top_p: 0.95
+tls_skip_verify_insecure: false
+tokenizer_config:
+  repository: bigcode/starcoder
+tokens_to_clear: ["<|endoftext|>"]
+repositories:
+  - source:
+      type: local
+      path: simple
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    holes_file: simple.json
+  - source:
+      type: github
+      owner: mmaitre314
+      name: picklescan
+      revision: 40001cd1caa9e041b1bce1b80f3707056cd8be52
+      src_path: src/picklescan
+    build_command: picklescan-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: picklescan-venv/bin/python3
+    setup_commands:
+      - ["python3", ["-m", "venv", "picklescan-venv"]]
+      - ["picklescan-venv/bin/python3", ["-m", "pip", "install", "."]]
+      - ["picklescan-venv/bin/python3", ["-m", "pip", "install", "-r", "requirements.txt"]]
+    holes_file: picklescan.json
+  - source:
+      type: github
+      owner: huggingface
+      name: huggingface_hub
+      revision: a48eb89d4186bc84bca67b117cf29a0ee0b69774
+      src_path: src/huggingface_hub
+    build_command: huggingface_hub-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: huggingface_hub-venv/bin/python3
+    runner_extra_args:
+      - "-k"
+      - "_utils_ and not _utils_cache and not _utils_http and not paginate and not git"
+    setup_commands:
+      - ["python3", ["-m", "venv", "huggingface_hub-venv"]]
+      - ["huggingface_hub-venv/bin/python3", ["-m", "pip", "install", ".[dev]"]]
+    holes_file: huggingface_hub.json
+  - source:
+      type: github
+      owner: tiangolo
+      name: fastapi
+      revision: e4b21c6eab7cd58caf3c6c492ea1ce7945425dd1
+      src_path: fastapi
+    build_command: fastapi-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: fastapi-venv/bin/python3
+    setup_commands:
+      - ["python3", ["-m", "venv", "fastapi-venv"]]
+      - ["fastapi-venv/bin/python3", ["-m", "pip", "install", "--upgrade", "pip"]]
+      - ["fastapi-venv/bin/python3", ["-m", "pip", "install", "-r", "requirements-tests.txt"]]
+      - ["fastapi-venv/bin/python3", ["-m", "pip", "install", "pydantic"]]
+    holes_file: fastapi.json
+  - source:
+      type: github
+      owner: encode
+      name: starlette
+      revision: 657e7e7b728e13dc66cc3f77dffd00a42545e171
+      src_path: starlette
+    build_command: starlette-venv/bin/python3
+    build_args: ["-m", "compileall", "-q", "."]
+    language: python
+    runner: pytest
+    runner_command: starlette-venv/bin/python3
+    setup_commands:
+      - ["python3", ["-m", "venv", "starlette-venv"]]
+      - ["starlette-venv/bin/python3", ["-m", "pip", "install", "--upgrade", "pip"]]
+      - ["starlette-venv/bin/python3", ["-m", "pip", "install", "-r", "requirements.txt"]]
+    holes_file: starlette.json
+  - source:
+      type: github
+      owner: lancedb
+      name: lancedb
+      revision: 682e95fa8388d5839c8a782063beb307c4fca4bc
+      src_path: rust/vectordb/src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    # this is to avoid skewing the average hole completion time
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: lancedb.json
+  - source:
+      type: github
+      owner: lancedb
+      name: lance
+      revision: 4f7fb490c6b36a659b2c40b3945b4d533356acf2
+      src_path: rust
+      exclude_paths:
+        - .cargo
+        - .vscode
+        - .gitignore
+        - README.md
+        - img.png
+    build_command: cargo
+    build_args: ["build", "--all-features", "--manifest-path", "rust/Cargo.toml"]
+    language: rust
+    runner: cargo
+    runner_extra_args: ["--all-features", "--manifest-path", "rust/Cargo.toml"]
+    setup_commands:
+      - ["rm", ["rust/lance-core/protos", "rust/lance-index/protos"]]
+      - ["ln", ["-s", "../../protos", "rust/lance-core/protos"]]
+      - ["ln", ["-s", "../../protos", "rust/lance-index/protos"]]
+      - ["cargo", ["build", "--all-features", "--manifest-path", "rust/Cargo.toml"]]
+    holes_file: lance.json
+  - source:
+      type: github
+      owner: tkaitchuck
+      name: constrandom
+      revision: e9f560ba14e09ff9db9caca3f2dfa3ff52cc96de
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: constrandom.json
+  - source:
+      type: github
+      owner: jaemk
+      name: cached
+      revision: b1015561fb121c3e5698183c39df202e5a83994a
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: cached.json
+  - source:
+      type: github
+      owner: smol-rs
+      name: async-executor
+      revision: b91875e73bd9aec582e099d8c792514381fc8d0f
+      src_path: src
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: async-executor.json
+  - source:
+      type: github
+      owner: gcanti
+      name: io-ts
+      revision: 616583de0198632cad7820ed8701b15f654c7fd2
+      src_path: src
+    build_command: npm
+    build_args: ["run", "build"]
+    language: typescript
+    runner: vitest
+    setup_commands:
+      - ["npm", ["install"]]
+    holes_file: io-ts.json
+  - source:
+      type: github
+      owner: colinhacks
+      name: zod
+      revision: 481c9ba1932203777f6fe9497bb2a8a1d33c620e
+      src_path: src
+      exclude_paths: ["src/__tests__"]
+    build_command: yarn
+    build_args: ["build"]
+    language: typescript
+    runner: jest
+    runner_command: yarn
+    runner_args: ["test", "--", "--no-colors"]
+    setup_commands:
+      - ["yarn", ["install"]]
+    holes_file: zod.json
+  - source:
+      type: github
+      owner: helix-editor
+      name: helix
+      revision: ae6a0a9cfd377fbfa494760282498cf2ca322782
+      exclude_paths:
+        - .cargo
+        - .github
+        - book
+        - contrib
+        - docs
+        - helix-core/tests
+        - helix-term/tests
+        - helix-tui/tests
+        - helix-view/tests
+        - runtime
+        - xtask
+        - .envrc
+        - .gitattributes
+        - .gitignore
+        - .ignore
+        - CHANGELOG.md
+        - Cargo.lock
+        - LICENSE
+        - README.md
+        - VERSION
+        - base16_theme.toml
+        - default.nix
+        - flake.lock
+        - flake.nix
+        - grammars.nix
+        - languages.toml
+        - logo.svg
+        - logo_dark.svg
+        - logo_light.svg
+        - rust-toolchain.toml
+        - rustfmt.toml
+        - screenshot.png
+        - shell.nix
+        - theme.toml
+    build_command: cargo
+    build_args: ["build"]
+    language: rust
+    runner: cargo
+    runner_extra_args: ["--workspace"]
+    setup_commands:
+      - ["cargo", ["build"]]
+    holes_file: helix.json
--- a/crates/testbed/repositories/simple/Cargo.lock
+++ b/crates/testbed/repositories/simple/Cargo.lock
@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "simple"
+version = "0.1.0"
--- a/crates/testbed/repositories/simple/Cargo.toml
+++ b/crates/testbed/repositories/simple/Cargo.toml
@ -0,0 +1,10 @@
+[workspace]
+
+[package]
+name = "simple"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
--- a/crates/testbed/repositories/simple/src/main.rs
+++ b/crates/testbed/repositories/simple/src/main.rs
@ -0,0 +1,46 @@
+fn sum(lhs: i32, rhs: i32) -> i32 {
+    lhs + rhs
+}
+
+fn sub(lhs: i32, rhs: i32) -> i32 {
+    lhs - rhs
+}
+
+fn mul(lhs: i32, rhs: i32) -> i32 {
+    lhs * rhs
+}
+
+fn div(lhs: i32, rhs: i32) -> i32 {
+    lhs / rhs
+}
+
+fn main() {
+    println!("42 + 42 = {}", sum(42, 42));
+    println!("41 - 42 = {}", sub(41, 42));
+    println!("42 * 42 = {}", mul(42, 42));
+    println!("42 / 42 = {}", div(42, 42));
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn test_sum() {
+        assert_eq!(42 + 42, super::sum(42, 42));
+    }
+
+    #[test]
+    fn test_sub() {
+        assert_eq!(42 - 42, super::sub(42, 42));
+        assert_eq!(41 - 42, super::sub(41, 42));
+    }
+
+    #[test]
+    fn test_mul() {
+        assert_eq!(42 * 42, super::mul(42, 42));
+    }
+
+    #[test]
+    fn test_div() {
+        assert_eq!(42 / 42, super::div(42, 42));
+    }
+}
--- a/crates/testbed/src/holes_generator.rs
+++ b/crates/testbed/src/holes_generator.rs
@ -0,0 +1,113 @@
+use std::{
+    collections::VecDeque,
+    path::{Path, PathBuf},
+};
+
+use anyhow::anyhow;
+use rand::{seq::SliceRandom, Rng};
+use ropey::Rope;
+use tokio::{
+    fs::{self, OpenOptions},
+    io::{AsyncReadExt, AsyncWriteExt},
+};
+use tracing::info;
+
+use crate::{setup_repo_dir, Hole, RepositoriesConfig};
+
+async fn file_is_empty(file_path: impl AsRef<Path>) -> anyhow::Result<bool> {
+    let mut content = String::new();
+    fs::File::open(&file_path)
+        .await?
+        .read_to_string(&mut content)
+        .await?;
+    Ok(content.trim().is_empty())
+}
+
+pub(crate) async fn generate_holes(
+    repositories_config: RepositoriesConfig,
+    repos_dir_path: &Path,
+    holes_dir_path: &Path,
+    holes_per_repo: usize,
+    filter_repos: bool,
+    filter_list: Vec<String>,
+) -> anyhow::Result<()> {
+    let mut rng = rand::thread_rng();
+    for repo in repositories_config.repositories {
+        if filter_repos && !filter_list.contains(&repo.name()) {
+            continue;
+        }
+        let repo_name = repo.name();
+        info!("creating {} holes for {}", holes_per_repo, repo_name);
+        let (_tmp_dir, path) = setup_repo_dir(repos_dir_path, &repo.source).await?;
+        let mut files = vec![];
+
+        let mut stack = VecDeque::new();
+        let exclude_paths = repo
+            .source
+            .exclude_paths()
+            .iter()
+            .map(|p| path.join(p))
+            .collect::<Vec<PathBuf>>();
+        stack.push_back(path.join(repo.source.src_path()));
+        while let Some(src) = stack.pop_back() {
+            let mut entries = fs::read_dir(&src).await?;
+            while let Some(entry) = entries.next_entry().await? {
+                let entry_type = entry.file_type().await?;
+
+                let src_path = entry.path();
+                if exclude_paths.iter().any(|p| src_path.starts_with(p)) {
+                    continue;
+                }
+
+                if entry_type.is_dir() {
+                    stack.push_back(src_path);
+                } else if entry_type.is_file()
+                    && repo
+                        .language
+                        .is_code_file(src_path.file_name().unwrap().to_str().unwrap())
+                    && !file_is_empty(&src_path).await?
+                {
+                    files.push(src_path);
+                }
+            }
+        }
+
+        let mut holes = vec![];
+        let mut i = 0;
+        while i < holes_per_repo {
+            let file_path = files
+                .choose(&mut rng)
+                .ok_or(anyhow!("files vec is empty"))?;
+            let mut content = String::new();
+            fs::File::open(&file_path)
+                .await?
+                .read_to_string(&mut content)
+                .await?;
+            let rope = Rope::from_str(&content);
+            let line_nb = rng.gen_range(0..rope.len_lines());
+            let line = rope.line(line_nb);
+            let line_string = line.to_string();
+            let trimmed = line_string.trim();
+            if trimmed.starts_with(repo.language.comment_token()) || trimmed.is_empty() {
+                continue;
+            }
+            let column_nb = rng.gen_range(0..15.min(line.len_chars()));
+            holes.push(Hole::new(
+                line_nb as u32,
+                column_nb as u32,
+                file_path.strip_prefix(&path)?.to_str().unwrap().to_owned(),
+            ));
+            i += 1;
+        }
+        let mut file = OpenOptions::new()
+            .create(true)
+            .write(true)
+            .truncate(true)
+            .open(&holes_dir_path.join(repo.holes_file))
+            .await?;
+        file.write_all(serde_json::to_string(&holes)?.as_bytes())
+            .await?;
+    }
+
+    Ok(())
+}
--- a/crates/testbed/src/lang.rs
+++ b/crates/testbed/src/lang.rs
@ -0,0 +1,44 @@
+use std::fmt;
+
+use serde::{Deserialize, Serialize};
+
+// const JS_EXT: [&str; 2] = [".js", ".jsx"];
+const PY_EXT: [&str; 1] = [".py"];
+const RS_EXT: [&str; 1] = [".rs"];
+const TS_EXT: [&str; 3] = [".ts", ".tsx", ".d.ts"];
+
+#[derive(Clone, Deserialize, Serialize)]
+#[serde(rename_all = "lowercase")]
+pub(crate) enum Language {
+    Python,
+    Rust,
+    Typescript,
+}
+
+impl fmt::Display for Language {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Self::Python => write!(f, "python"),
+            Self::Rust => write!(f, "rust"),
+            Self::Typescript => write!(f, "typescript"),
+        }
+    }
+}
+
+impl Language {
+    pub(crate) fn is_code_file(&self, file_name: &str) -> bool {
+        match self {
+            Self::Python => PY_EXT.iter().any(|ext| file_name.ends_with(ext)),
+            Self::Rust => RS_EXT.iter().any(|ext| file_name.ends_with(ext)),
+            Self::Typescript => TS_EXT.iter().any(|ext| file_name.ends_with(ext)),
+        }
+    }
+
+    pub(crate) fn comment_token(&self) -> &str {
+        match self {
+            Self::Python => "#",
+            Self::Rust => "//",
+            Self::Typescript => "//",
+        }
+    }
+}
--- a/crates/testbed/src/main.rs
+++ b/crates/testbed/src/main.rs
@ -0,0 +1,717 @@
+use std::{
+    collections::{HashMap, VecDeque},
+    fmt::Display,
+    io::BufReader,
+    path::{Path, PathBuf},
+    process::Stdio,
+    sync::Arc,
+    time::Instant,
+};
+
+use anyhow::anyhow;
+use clap::Parser;
+use futures_util::{stream::FuturesUnordered, StreamExt, TryStreamExt};
+use lang::Language;
+use lsp_client::{client::LspClient, msg::RequestId, server::Server};
+use lsp_types::{
+    DidOpenTextDocumentParams, InitializeParams, TextDocumentIdentifier, TextDocumentItem,
+    TextDocumentPositionParams,
+};
+use ropey::Rope;
+use runner::Runner;
+use serde::{Deserialize, Serialize};
+use tempfile::TempDir;
+use tokio::{
+    fs::{self, read_to_string, File, OpenOptions},
+    io::{self, AsyncReadExt, AsyncWriteExt},
+    process::Command,
+    sync::{RwLock, Semaphore},
+};
+use tokio_util::compat::FuturesAsyncReadCompatExt;
+use tracing::{debug, error, info, info_span, warn, Instrument};
+use tracing_subscriber::EnvFilter;
+use url::Url;
+
+use crate::{
+    holes_generator::generate_holes,
+    runner::run_test,
+    types::{
+        FimParams, GetCompletions, GetCompletionsParams, GetCompletionsResult, Ide, RequestParams,
+        TokenizerConfig,
+    },
+};
+
+mod holes_generator;
+mod lang;
+mod runner;
+mod types;
+
+/// Testbed runs llm-ls' code completion to measure its performance
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    /// Hugging Face Inference API Token
+    #[arg(short, long)]
+    api_token: Option<String>,
+
+    /// Comma separated list of repos in the repositories file to run completions or holes generation for;
+    /// matches on path for local repos and `owner/name` for github repos
+    #[arg(short, long)]
+    filter: Option<String>,
+
+    /// When this is specified, holes files will be generated based on the repositories.yaml file
+    #[arg(short, long, action)]
+    generate_holes: bool,
+
+    /// Path to the directory containing the holes files
+    #[arg(short = 'H', long)]
+    holes_dir_path: Option<String>,
+
+    /// Number of holes to create per repository
+    #[arg(short = 'n', long, default_value_t = 100)]
+    holes_per_repo: usize,
+
+    /// Path to llm-ls' binary
+    #[arg(short, long)]
+    llm_ls_bin_path: Option<String>,
+
+    /// Path to the local repositories/ directory
+    #[arg(short = 'R', long)]
+    repos_dir_path: Option<String>,
+
+    /// Path to the repositories.yaml file
+    #[arg(short, long)]
+    repos_file_path: Option<String>,
+}
+
+#[derive(Clone, Deserialize, Serialize)]
+struct LocalRepo {
+    path: PathBuf,
+    src_path: String,
+    #[serde(default)]
+    exclude_paths: Vec<String>,
+}
+
+#[derive(Clone, Deserialize, Serialize)]
+struct GithubRepo {
+    owner: String,
+    name: String,
+    revision: String,
+    #[serde(default)]
+    src_path: String,
+    #[serde(default)]
+    exclude_paths: Vec<String>,
+}
+
+#[derive(Clone, Deserialize, Serialize)]
+#[serde(tag = "type")]
+#[serde(rename_all = "lowercase")]
+enum RepoSource {
+    Local(LocalRepo),
+    Github(GithubRepo),
+}
+
+impl RepoSource {
+    fn source_type(&self) -> String {
+        match self {
+            Self::Local { .. } => "local".to_owned(),
+            Self::Github { .. } => "github".to_owned(),
+        }
+    }
+
+    fn src_path(&self) -> String {
+        match self {
+            Self::Local(local) => local.src_path.clone(),
+            Self::Github(github) => github.src_path.clone(),
+        }
+    }
+
+    fn exclude_paths(&self) -> Vec<String> {
+        match self {
+            Self::Local(local) => local.exclude_paths.clone(),
+            Self::Github(github) => github.exclude_paths.clone(),
+        }
+    }
+}
+
+#[derive(Clone, Deserialize, Serialize)]
+struct Repository {
+    build_command: String,
+    build_args: Vec<String>,
+    env: Option<Vec<String>>,
+    holes_file: String,
+    language: Language,
+    runner: Runner,
+    runner_command: Option<String>,
+    runner_args: Option<Vec<String>>,
+    #[serde(default)]
+    runner_extra_args: Vec<String>,
+    setup_commands: Option<Vec<(String, Vec<String>)>>,
+    source: RepoSource,
+}
+
+impl Repository {
+    /// can panic if local path is not utf8
+    fn name(&self) -> String {
+        match &self.source {
+            RepoSource::Local(local) => local.path.to_str().unwrap().to_owned(),
+            RepoSource::Github(github) => format!("{}/{}", github.owner, github.name),
+        }
+    }
+}
+
+#[derive(Clone, Deserialize, Serialize)]
+struct Hole {
+    cursor: lsp_types::Position,
+    /// relative path of a file in the repository
+    file: String,
+}
+
+impl Hole {
+    fn new(line: u32, character: u32, file: String) -> Self {
+        Self {
+            cursor: lsp_types::Position::new(line, character),
+            file,
+        }
+    }
+}
+
+impl Display for Hole {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "{} [{}, {}]",
+            self.file, self.cursor.line, self.cursor.character
+        )
+    }
+}
+
+// unused for now, consider all holes as lines
+// enum HoleType {
+//     Line,
+//     Multiline
+// }
+
+#[derive(Clone, Deserialize, Serialize)]
+struct RepositoriesConfig {
+    context_window: usize,
+    fim: FimParams,
+    model: String,
+    request_params: RequestParams,
+    repositories: Vec<Repository>,
+    tls_skip_verify_insecure: bool,
+    tokenizer_config: Option<TokenizerConfig>,
+    tokens_to_clear: Vec<String>,
+}
+
+struct HoleCompletionResult {
+    repo_name: String,
+    repo_source_type: String,
+    pass_percentage: f32,
+    completion_time_ms: u128,
+}
+
+impl HoleCompletionResult {
+    fn new(
+        repo_name: String,
+        repo_source_type: String,
+        pass_percentage: f32,
+        completion_time_ms: u128,
+    ) -> Self {
+        Self {
+            repo_name,
+            repo_source_type,
+            pass_percentage,
+            completion_time_ms,
+        }
+    }
+}
+
+async fn get_api_token(args_token: Option<String>) -> anyhow::Result<Option<String>> {
+    if args_token.is_some() {
+        Ok(args_token)
+    } else {
+        let home_dir = home::home_dir().ok_or(anyhow!("failed to find home dir"))?;
+        let cached_token = home_dir.join(".cache/huggingface/token");
+        if cached_token.try_exists()? {
+            let mut token = String::new();
+            File::open(cached_token)
+                .await?
+                .read_to_string(&mut token)
+                .await?;
+            Ok(Some(token.trim().to_owned()))
+        } else {
+            Ok(None)
+        }
+    }
+}
+
+async fn download_repo_from_github(
+    temp_dir: &TempDir,
+    repo: &GithubRepo,
+) -> anyhow::Result<PathBuf> {
+    let repo_dir_name = format!("{}-{}", repo.name, repo.revision);
+    let archive_path = temp_dir.path().join(format!("{}.zip", repo_dir_name));
+    let mut archive = File::create(&archive_path).await?;
+    let stream = reqwest::get(&format!(
+        "https://github.com/{}/{}/archive/{}.zip",
+        repo.owner, repo.name, repo.revision,
+    ))
+    .await?
+    .error_for_status()?
+    .bytes_stream();
+    let stream = stream
+        .map_err(|e| futures::io::Error::new(futures::io::ErrorKind::Other, e))
+        .into_async_read();
+    let mut stream = stream.compat();
+    io::copy(&mut stream, &mut archive).await?;
+    let archive = BufReader::new(std::fs::File::open(archive_path)?);
+    zip::ZipArchive::new(archive)?.extract(temp_dir.path())?;
+    Ok(temp_dir.path().join(repo_dir_name))
+}
+
+async fn copy_dir_contents(source: &Path, dest: &Path) -> anyhow::Result<()> {
+    let mut stack = VecDeque::new();
+    stack.push_back((source.to_path_buf(), dest.to_path_buf()));
+    while let Some((src, dst)) = stack.pop_back() {
+        let mut entries = fs::read_dir(&src).await?;
+        while let Some(entry) = entries.next_entry().await? {
+            let entry_type = entry.file_type().await?;
+
+            let src_path = entry.path();
+            let dst_path = fs::canonicalize(&dst).await?.join(entry.file_name());
+
+            if entry_type.is_dir() {
+                fs::create_dir(&dst_path).await?;
+                stack.push_back((src_path, dst_path));
+            } else if entry_type.is_file() {
+                fs::copy(&src_path, &dst_path).await?;
+            }
+        }
+    }
+
+    Ok(())
+}
+
+async fn setup_repo_dir(
+    repos_dir_path: &Path,
+    source: &RepoSource,
+) -> anyhow::Result<(TempDir, PathBuf)> {
+    match source {
+        RepoSource::Local(local) => {
+            debug!("setting up local repo: {}", local.path.to_str().unwrap());
+            let temp_dir = TempDir::new()?;
+            copy_dir_contents(&repos_dir_path.join(&local.path), temp_dir.path()).await?;
+            let repo_path = temp_dir.path().to_path_buf();
+            Ok((temp_dir, repo_path))
+        }
+        RepoSource::Github(github) => {
+            debug!("setting repo from github: {}/{}", github.owner, github.name);
+            let temp_dir = TempDir::new()?;
+            let repo_path = download_repo_from_github(&temp_dir, github).await?;
+            Ok((temp_dir, repo_path))
+        }
+    }
+}
+
+fn parse_env(env: &Option<Vec<String>>) -> anyhow::Result<Vec<(String, String)>> {
+    let mut env_vars = vec![];
+    if let Some(env) = env {
+        for var in env {
+            env_vars.push(
+                var.split_once('=')
+                    .map(|(n, v)| (n.to_owned(), v.to_owned()))
+                    .ok_or(anyhow!("failed to split env var {var}"))?,
+            );
+        }
+    }
+    Ok(env_vars)
+}
+
+async fn run_setup(
+    commands: &Vec<(String, Vec<String>)>,
+    env: &Option<Vec<String>>,
+    repo_path: impl AsRef<Path>,
+) -> anyhow::Result<()> {
+    let parsed_env = parse_env(env)?;
+    for command in commands {
+        let mut status_cmd = Command::new(&command.0);
+        for (name, value) in &parsed_env {
+            status_cmd.env(name, value);
+        }
+        debug!("running setup command: {} {:?}", command.0, command.1);
+        let status = status_cmd
+            .args(&command.1)
+            .current_dir(&repo_path)
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
+            .spawn()?
+            .wait()
+            .await?;
+
+        if !status.success() {
+            return Err(anyhow!(
+                "error running: \"{} {}\"",
+                command.0,
+                command.1.join(" ")
+            ));
+        }
+    }
+    Ok(())
+}
+
+async fn build(
+    command: &str,
+    args: &Vec<String>,
+    env: &Option<Vec<String>>,
+    repo_path: impl AsRef<Path>,
+) -> anyhow::Result<bool> {
+    let parsed_env = parse_env(env)?;
+    let mut status_cmd = Command::new(command);
+    for (name, value) in parsed_env {
+        status_cmd.env(name, value);
+    }
+    debug!("building repo: {command} {args:?}");
+    let status = status_cmd
+        .args(args)
+        .current_dir(repo_path)
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .spawn()?
+        .wait()
+        .await?;
+    Ok(status.success())
+}
+
+#[allow(clippy::too_many_arguments)]
+async fn complete_holes(
+    repo: Repository,
+    client: Arc<LspClient>,
+    file_cache: Arc<RwLock<HashMap<PathBuf, Rope>>>,
+    holes_dir_path: PathBuf,
+    repos_dir_path: PathBuf,
+    repos_config: RepositoriesConfig,
+    api_token: Option<String>,
+    semaphore: Arc<Semaphore>,
+) -> anyhow::Result<Vec<HoleCompletionResult>> {
+    let permit = semaphore.acquire_owned().await?;
+    let span = info_span!("complete_hole", repo_name = repo.name());
+    async move {
+        let holes_file_path = holes_dir_path.join(&repo.holes_file);
+        let mut holes = String::new();
+        File::open(holes_file_path)
+            .await?
+            .read_to_string(&mut holes)
+            .await?;
+        let holes: Vec<Hole> = serde_json::from_str(&holes)?;
+        let ten_percent = if holes.len() >= 10 {
+            holes.len() / 10
+        } else {
+            1
+        };
+        info!("running {} hole completions", holes.len());
+        let RepositoriesConfig {
+            context_window,
+            fim,
+            model,
+            request_params,
+            tls_skip_verify_insecure,
+            tokenizer_config,
+            tokens_to_clear,
+            ..
+        } = repos_config;
+        let (_temp_dir, repo_path) = setup_repo_dir(&repos_dir_path, &repo.source).await?;
+        if let Some(commands) = &repo.setup_commands {
+            run_setup(commands, &repo.env, &repo_path).await?;
+        }
+        let mut hole_completions_result = Vec::with_capacity(holes.len());
+        for (idx, hole) in holes.iter().enumerate() {
+            let hole_instant = Instant::now();
+            let file_path = repo_path.join(&hole.file);
+            let file_path_str = file_path
+                .to_str()
+                .ok_or(anyhow!("failed to convert file to str"))?;
+            let mut file_content = if file_cache.read().await.contains_key(&file_path) {
+                file_cache
+                    .read()
+                    .await
+                    .get(&file_path)
+                    .ok_or(anyhow!("failed to find {} in file cache", file_path_str))?
+                    .to_owned()
+            } else {
+                let file_content = Rope::from_str(&read_to_string(&file_path).await?);
+                file_cache
+                    .write()
+                    .await
+                    .insert(file_path.clone(), file_content.clone());
+                file_content
+            };
+            let original_content = file_content.clone();
+            let hole_start = file_content.line_to_char(hole.cursor.line as usize)
+                + hole.cursor.character as usize;
+            let hole_end = hole_start
+                + file_content
+                    .line(hole.cursor.line as usize)
+                    .slice(hole.cursor.character as usize..)
+                    .len_chars()
+                - 1;
+            file_content.remove(hole_start..hole_end);
+
+            let uri = Url::parse(&format!("file:/{file_path_str}"))?;
+            client.send_notification::<lsp_types::notification::DidOpenTextDocument>(
+                DidOpenTextDocumentParams {
+                    text_document: TextDocumentItem {
+                        uri: uri.clone(),
+                        language_id: repo.language.to_string(),
+                        version: 0,
+                        text: file_content.to_string(),
+                    },
+                },
+            );
+            let response = client
+                .send_request::<GetCompletions>(GetCompletionsParams {
+                    api_token: api_token.clone(),
+                    context_window,
+                    fim: fim.clone(),
+                    ide: Ide::default(),
+                    model: model.clone(),
+                    request_params: request_params.clone(),
+                    text_document_position: TextDocumentPositionParams {
+                        position: hole.cursor,
+                        text_document: TextDocumentIdentifier { uri },
+                    },
+                    tls_skip_verify_insecure,
+                    tokens_to_clear: tokens_to_clear.clone(),
+                    tokenizer_config: tokenizer_config.clone(),
+                })
+                .await?;
+            let (_, result): (RequestId, GetCompletionsResult) = match response.extract() {
+                Ok(res) => res,
+                Err(err) => {
+                    error!("llm-ls response error: {err}");
+                    continue;
+                }
+            };
+
+            file_content.insert(hole_start, &result.completions[0].generated_text);
+            let mut file = OpenOptions::new()
+                .write(true)
+                .truncate(true)
+                .open(&file_path)
+                .await?;
+            file.write_all(file_content.to_string().as_bytes()).await?;
+            let test_percentage =
+                if build(&repo.build_command, &repo.build_args, &repo.env, &repo_path).await? {
+                    run_test(
+                        repo.runner,
+                        &repo.runner_command,
+                        &repo.runner_args,
+                        &mut repo.runner_extra_args.clone(),
+                        &repo.env,
+                        &repo_path,
+                    )
+                    .await?
+                } else {
+                    0f32
+                };
+            debug!("{} passed {}%", hole.to_string(), test_percentage * 100f32);
+            hole_completions_result.push(HoleCompletionResult::new(
+                repo.name(),
+                repo.source.source_type(),
+                test_percentage,
+                hole_instant.elapsed().as_millis(),
+            ));
+            let mut file = OpenOptions::new()
+                .write(true)
+                .truncate(true)
+                .open(&file_path)
+                .await?;
+            file.write_all(original_content.to_string().as_bytes())
+                .await?;
+            if (idx + 1) % ten_percent == 0 {
+                info!("completed {}%", (idx + 1) / ten_percent * 10);
+            }
+        }
+        drop(permit);
+        info!("finished running hole completions");
+        Ok(hole_completions_result)
+    }
+    .instrument(span)
+    .await
+}
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    tracing_subscriber::fmt()
+        .with_target(true)
+        .with_line_number(true)
+        .with_env_filter(
+            EnvFilter::try_from_env("LOG_LEVEL").unwrap_or_else(|_| EnvFilter::new("info")),
+        )
+        .init();
+
+    let args = Args::parse();
+
+    let api_token = get_api_token(args.api_token).await?;
+    let current_dir = std::env::current_dir()?;
+    let llm_ls_path = if let Some(bin_path) = args.llm_ls_bin_path {
+        bin_path.into()
+    } else {
+        current_dir.join("target/release/llm-ls")
+    };
+
+    let repos_dir_path = if let Some(path) = args.repos_dir_path {
+        path.into()
+    } else {
+        current_dir.join("crates/testbed/repositories")
+    };
+
+    let repos_file_path = if let Some(path) = args.repos_file_path {
+        path.into()
+    } else {
+        current_dir.join("crates/testbed/repositories.yaml")
+    };
+
+    let holes_dir_path = if let Some(path) = args.holes_dir_path {
+        path.into()
+    } else {
+        current_dir.join("crates/testbed/holes")
+    };
+
+    let (filter_repos, filter_list) = if let Some(filter) = args.filter {
+        (true, filter.split(',').map(|s| s.to_owned()).collect())
+    } else {
+        (false, vec![])
+    };
+
+    let mut repos_file = String::new();
+    File::open(&repos_file_path)
+        .await?
+        .read_to_string(&mut repos_file)
+        .await?;
+    let repos_config: RepositoriesConfig = serde_yaml::from_str(&repos_file)?;
+    if args.generate_holes {
+        return generate_holes(
+            repos_config,
+            &repos_dir_path,
+            &holes_dir_path,
+            args.holes_per_repo,
+            filter_repos,
+            filter_list,
+        )
+        .await;
+    }
+
+    debug!(
+        "initializing language server at path: {}",
+        llm_ls_path.to_str().unwrap()
+    );
+    let (conn, server) = Server::build().binary_path(llm_ls_path).start().await?;
+    let client = Arc::new(LspClient::new(conn, server).await);
+    client
+        .send_request::<lsp_types::request::Initialize>(InitializeParams::default())
+        .await?;
+
+    let file_cache = Arc::new(RwLock::new(HashMap::new()));
+    let mut passing_tests_percentage = vec![];
+
+    let repositories = repos_config.repositories.clone();
+    let mut handles = FuturesUnordered::new();
+    // Query the model by batches of 64
+    let semaphore = Arc::new(Semaphore::new(8));
+    for repo in repositories {
+        if filter_repos && !filter_list.contains(&repo.name()) {
+            continue;
+        }
+        let client = client.clone();
+        let file_cache = file_cache.clone();
+        let holes_dir_path = holes_dir_path.clone();
+        let repos_dir_path = repos_dir_path.clone();
+        let repos_config = repos_config.clone();
+        let api_token = api_token.clone();
+        let semaphore = semaphore.clone();
+        handles.push(tokio::spawn(async move {
+            complete_holes(
+                repo,
+                client,
+                file_cache,
+                holes_dir_path,
+                repos_dir_path,
+                repos_config,
+                api_token,
+                semaphore,
+            )
+            .await
+        }));
+    }
+
+    while let Some(res) = handles.next().await {
+        match res {
+            Ok(Ok(res)) => passing_tests_percentage.extend(res),
+            Ok(Err(err)) => return Err(err),
+            Err(err) => return Err(err.into()),
+        }
+    }
+    let mut results_map: HashMap<(String, String), (u128, f32, f32)> = HashMap::new();
+    for res in passing_tests_percentage {
+        results_map
+            .entry((res.repo_name, res.repo_source_type))
+            .and_modify(|p| {
+                p.0 += res.completion_time_ms;
+                p.1 += res.pass_percentage;
+                p.2 += 1f32;
+            })
+            .or_insert((res.completion_time_ms, res.pass_percentage, 1f32));
+    }
+    let mut results_table =
+        "| Repository name | Source type | Average hole completion time (s) | Pass percentage |\n| :-------------- | :---------- | -------------------------------: | --------------: |\n".to_owned();
+    let mut total_time = 0;
+    let mut total_percentage = 0f32;
+    let mut total_count = 0f32;
+    for (k, v) in results_map.iter() {
+        let avg = v.1 / v.2;
+        let avg_time = v.0 as f32 / v.2;
+        results_table.push_str(&format!(
+            "| {} | {} | {} | {}% |\n",
+            k.0,
+            k.1,
+            avg_time / 1_000f32,
+            avg * 100f32
+        ));
+        total_percentage += v.1;
+        total_count += v.2;
+        total_time += v.0;
+    }
+    let total_avg = total_percentage / total_count;
+    let total_time_avg = total_time as f32 / total_count;
+    results_table.push_str(&format!(
+        "| **Total**       | --          | {} | {}% |\n\n",
+        total_time_avg / 1_000f32,
+        total_avg * 100f32
+    ));
+    results_table.push_str(
+        &[
+            "**Note:** The \"hole completion time\" represents the full process of:",
+            "  - replacing the code from the file with a completion from the model",
+            "  - building the project",
+            "  - running the tests",
+        ]
+        .join("\n"),
+    );
+    info!("llm-ls results:\n{}", results_table);
+    OpenOptions::new()
+        .create(true)
+        .write(true)
+        .truncate(true)
+        .open("results.md")
+        .await?
+        .write_all(results_table.as_bytes())
+        .await?;
+
+    client.shutdown().await?;
+    match Arc::into_inner(client) {
+        Some(client) => client.exit().await,
+        None => warn!("could not send exit notification because client is referenced elsewhere"),
+    }
+    Ok(())
+}
--- a/crates/testbed/src/runner.rs
+++ b/crates/testbed/src/runner.rs
@ -0,0 +1,278 @@
+use std::{path::Path, process::Stdio};
+
+use anyhow::anyhow;
+use serde::{Deserialize, Serialize};
+use tokio::{io::AsyncReadExt, process::Command};
+use tracing::debug;
+
+use crate::parse_env;
+
+#[derive(Deserialize, Serialize)]
+struct TestSuiteResult {
+    r#type: String,
+    event: String,
+    passed: u32,
+    failed: u32,
+    ignored: u32,
+    measured: u32,
+    filtered_out: u32,
+    exec_time: f64,
+}
+
+async fn pytest_runner(
+    override_cmd: &Option<String>,
+    extra_args: &mut Vec<String>,
+    repo_path: &Path,
+) -> anyhow::Result<f32> {
+    let cmd = if let Some(cmd) = override_cmd {
+        cmd
+    } else {
+        "python3"
+    };
+    let mut args = vec![
+        "-m".to_owned(),
+        "pytest".to_owned(),
+        "tests".to_owned(),
+        "-q".to_owned(),
+        "--disable-warnings".to_owned(),
+        "--no-header".to_owned(),
+    ];
+    args.append(extra_args);
+    debug!("running pytest tests: {cmd} {args:?}");
+    let mut child = Command::new(cmd)
+        .args(args)
+        .current_dir(repo_path)
+        .stdout(Stdio::piped())
+        .stderr(Stdio::null())
+        .spawn()?;
+    let mut stdout = String::new();
+    child
+        .stdout
+        .take()
+        .ok_or(anyhow!("failed to take stdout"))?
+        .read_to_string(&mut stdout)
+        .await?;
+
+    // XXX: the pytest command can still fail even after the compilation check
+    // the above check should prevent an error, but better safe than sorry
+    let lines = stdout.split_terminator('\n');
+    let result = match lines.last() {
+        Some(line) => line.replace('=', "").trim().to_owned(),
+        None => return Ok(0f32),
+    };
+    let mut passed = 0f32;
+    let mut failed = 0f32;
+    let without_time = &result[0..result.find("in").unwrap_or(result.len())].trim();
+    for res in without_time.split(", ") {
+        if res.contains("passed") {
+            let passed_str = res.replace(" passed", "");
+            passed = passed_str.parse::<u32>()? as f32;
+        } else if res.contains("failed") && !res.contains("xfailed") {
+            let failed_str = res.replace(" failed", "");
+            failed = failed_str.parse::<u32>()? as f32;
+        } else if res.contains("error") {
+            return Ok(0f32);
+        }
+    }
+    if passed == 0f32 && failed == 0f32 {
+        return Ok(0f32);
+    }
+
+    Ok(passed / (passed + failed))
+}
+
+async fn cargo_runner(
+    override_cmd: &Option<String>,
+    extra_args: &mut Vec<String>,
+    env: &Option<Vec<String>>,
+    repo_path: &Path,
+) -> anyhow::Result<f32> {
+    let cmd = if let Some(cmd) = override_cmd {
+        cmd
+    } else {
+        "cargo"
+    };
+    let mut args = vec![];
+    args.append(extra_args);
+    if !args.contains(&"--".to_owned()) {
+        args.push("--".to_owned());
+    }
+    args.extend([
+        "-Z".to_owned(),
+        "unstable-options".to_owned(),
+        "--format".to_owned(),
+        "json".to_owned(),
+    ]);
+    debug!("running cargo tests: {cmd} test {args:?}");
+    let parsed_env = parse_env(env)?;
+    let mut cmd = Command::new(cmd);
+    for (name, value) in parsed_env {
+        cmd.env(name, value);
+    }
+    let mut child = cmd
+        .arg("test")
+        .args(args)
+        .current_dir(repo_path)
+        .stdout(Stdio::piped())
+        .stderr(Stdio::null())
+        .spawn()?;
+
+    let mut stdout = String::new();
+    child
+        .stdout
+        .take()
+        .ok_or(anyhow!("failed to take stdout"))?
+        .read_to_string(&mut stdout)
+        .await?;
+    let lines = stdout.split_terminator('\n');
+    let mut passed = 0;
+    let mut failed = 0;
+    for line in lines {
+        let test_suite_result = match serde_json::from_str::<TestSuiteResult>(line) {
+            Ok(res) => res,
+            Err(_) => continue,
+        };
+        passed += test_suite_result.passed;
+        failed += test_suite_result.failed;
+    }
+    if passed == 0 && failed == 0 {
+        return Ok(0f32);
+    }
+
+    Ok(passed as f32 / (passed as f32 + failed as f32))
+}
+
+async fn jest_runner(
+    override_cmd: &Option<String>,
+    override_args: &Option<Vec<String>>,
+    repo_path: &Path,
+) -> anyhow::Result<f32> {
+    let cmd = if let Some(cmd) = override_cmd {
+        cmd
+    } else {
+        "npm"
+    };
+    let default_args = vec!["run".to_owned(), "test".to_owned()];
+    let args = if let Some(args) = override_args {
+        args
+    } else {
+        &default_args
+    };
+    debug!("running jest tests: {cmd} {args:?}");
+    let mut child = Command::new(cmd)
+        .args(args)
+        .current_dir(repo_path)
+        .stdout(Stdio::null())
+        .stderr(Stdio::piped())
+        .spawn()?;
+
+    let mut stderr = String::new();
+    child
+        .stderr
+        .take()
+        .ok_or(anyhow!("failed to take stderr"))?
+        .read_to_string(&mut stderr)
+        .await?;
+    let lines = stderr.split_terminator('\n');
+    let mut passed = 0f32;
+    let mut failed = 0f32;
+    for line in lines {
+        if line.contains("Tests:") {
+            let words = line.trim().split(' ').collect::<Vec<&str>>();
+            let mut prev = words[0];
+            for word in words {
+                if word.contains("passed") {
+                    passed = prev.parse::<u32>()? as f32;
+                } else if line.contains("failed") {
+                    failed = prev.parse::<u32>()? as f32;
+                }
+                prev = word;
+            }
+        }
+    }
+    if passed == 0f32 && failed == 0f32 {
+        return Ok(0f32);
+    }
+
+    Ok(passed / (passed + failed))
+}
+
+async fn vitest_runner(
+    override_cmd: &Option<String>,
+    override_args: &Option<Vec<String>>,
+    repo_path: &Path,
+) -> anyhow::Result<f32> {
+    let cmd = if let Some(cmd) = override_cmd {
+        cmd
+    } else {
+        "npm"
+    };
+    let default_args = vec!["run".to_owned(), "test".to_owned()];
+    let args = if let Some(args) = override_args {
+        args
+    } else {
+        &default_args
+    };
+    debug!("running vitest tests: {cmd} {args:?}");
+    let mut child = Command::new(cmd)
+        .args(args)
+        .current_dir(repo_path)
+        .stdout(Stdio::piped())
+        .stderr(Stdio::null())
+        .spawn()?;
+
+    let mut stdout = String::new();
+    child
+        .stdout
+        .take()
+        .ok_or(anyhow!("failed to take stdout"))?
+        .read_to_string(&mut stdout)
+        .await?;
+    let lines = stdout.split_terminator('\n');
+    let mut passed = 0f32;
+    let mut failed = 0f32;
+    for line in lines {
+        if line.contains("     Tests  ") {
+            let words = line.trim().split(' ').collect::<Vec<&str>>();
+            let mut prev = words[0];
+            for word in words {
+                if word.contains("passed") {
+                    passed = prev.parse::<u32>()? as f32;
+                } else if line.contains("failed") {
+                    failed = prev.parse::<u32>()? as f32;
+                }
+                prev = word;
+            }
+        }
+    }
+    if passed == 0f32 && failed == 0f32 {
+        return Ok(0f32);
+    }
+
+    Ok(passed / (passed + failed))
+}
+
+#[derive(Clone, Copy, Deserialize, Serialize)]
+#[serde(rename_all = "snake_case")]
+pub enum Runner {
+    Cargo,
+    Jest,
+    Pytest,
+    Vitest,
+}
+
+pub async fn run_test(
+    runner: Runner,
+    override_cmd: &Option<String>,
+    override_args: &Option<Vec<String>>,
+    extra_args: &mut Vec<String>,
+    env: &Option<Vec<String>>,
+    repo_path: &Path,
+) -> anyhow::Result<f32> {
+    match runner {
+        Runner::Cargo => cargo_runner(override_cmd, extra_args, env, repo_path).await,
+        Runner::Jest => jest_runner(override_cmd, override_args, repo_path).await,
+        Runner::Pytest => pytest_runner(override_cmd, extra_args, repo_path).await,
+        Runner::Vitest => vitest_runner(override_cmd, override_args, repo_path).await,
+    }
+}
--- a/crates/testbed/src/types.rs
+++ b/crates/testbed/src/types.rs
@ -0,0 +1,88 @@
+use std::path::PathBuf;
+
+use lsp_types::{request::Request, TextDocumentPositionParams};
+use serde::{Deserialize, Deserializer, Serialize};
+use uuid::Uuid;
+
+#[derive(Debug)]
+pub(crate) enum GetCompletions {}
+
+impl Request for GetCompletions {
+    type Params = GetCompletionsParams;
+    type Result = GetCompletionsResult;
+    const METHOD: &'static str = "llm-ls/getCompletions";
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub(crate) struct RequestParams {
+    pub(crate) max_new_tokens: u32,
+    pub(crate) temperature: f32,
+    pub(crate) do_sample: bool,
+    pub(crate) top_p: f32,
+    pub(crate) stop_tokens: Option<Vec<String>>,
+}
+
+#[derive(Clone, Copy, Debug, Default, Deserialize, Serialize)]
+#[serde(rename_all = "lowercase")]
+pub(crate) enum Ide {
+    Neovim,
+    VSCode,
+    JetBrains,
+    Emacs,
+    Jupyter,
+    Sublime,
+    VisualStudio,
+    #[default]
+    Unknown,
+}
+
+fn parse_ide<'de, D>(d: D) -> std::result::Result<Ide, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    Deserialize::deserialize(d).map(|b: Option<_>| b.unwrap_or(Ide::Unknown))
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub(crate) struct FimParams {
+    pub(crate) enabled: bool,
+    pub(crate) prefix: String,
+    pub(crate) middle: String,
+    pub(crate) suffix: String,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(untagged)]
+pub(crate) enum TokenizerConfig {
+    Local { path: PathBuf },
+    HuggingFace { repository: String },
+    Download { url: String, to: PathBuf },
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub(crate) struct GetCompletionsParams {
+    #[serde(flatten)]
+    pub(crate) text_document_position: TextDocumentPositionParams,
+    pub(crate) request_params: RequestParams,
+    #[serde(default)]
+    #[serde(deserialize_with = "parse_ide")]
+    pub(crate) ide: Ide,
+    pub(crate) fim: FimParams,
+    pub(crate) api_token: Option<String>,
+    pub(crate) model: String,
+    pub(crate) tokens_to_clear: Vec<String>,
+    pub(crate) tokenizer_config: Option<TokenizerConfig>,
+    pub(crate) context_window: usize,
+    pub(crate) tls_skip_verify_insecure: bool,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub(crate) struct Completion {
+    pub(crate) generated_text: String,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub(crate) struct GetCompletionsResult {
+    request_id: Uuid,
+    pub(crate) completions: Vec<Completion>,
+}
				`@ -0,0 +1 @@`
				[{"cursor":{"line":38,"character":6},"file":"src/lib.rs"},{"cursor":{"line":568,"character":8},"file":"src/lib.rs"},{"cursor":{"line":271,"character":11},"file":"src/lib.rs"},{"cursor":{"line":887,"character":14},"file":"src/lib.rs"},{"cursor":{"line":697,"character":12},"file":"src/lib.rs"},{"cursor":{"line":707,"character":6},"file":"src/lib.rs"},{"cursor":{"line":240,"character":10},"file":"src/lib.rs"},{"cursor":{"line":387,"character":13},"file":"src/lib.rs"},{"cursor":{"line":501,"character":8},"file":"src/lib.rs"},{"cursor":{"line":178,"character":6},"file":"src/lib.rs"}]
				`@ -0,0 +1 @@`
				[{"cursor":{"line":115,"character":0},"file":"src/stores/mod.rs"},{"cursor":{"line":136,"character":1},"file":"src/stores/expiring_value_cache.rs"},{"cursor":{"line":92,"character":4},"file":"src/lru_list.rs"},{"cursor":{"line":280,"character":14},"file":"src/stores/timed.rs"},{"cursor":{"line":294,"character":14},"file":"src/stores/unbound.rs"},{"cursor":{"line":267,"character":1},"file":"src/stores/unbound.rs"},{"cursor":{"line":142,"character":0},"file":"src/stores/expiring_value_cache.rs"},{"cursor":{"line":370,"character":12},"file":"src/stores/sized.rs"},{"cursor":{"line":280,"character":10},"file":"src/proc_macro.rs"},{"cursor":{"line":177,"character":5},"file":"src/stores/timed_sized.rs"}]
				`@ -0,0 +1 @@`
				[{"cursor":{"line":12,"character":3},"file":"src/lib.rs"},{"cursor":{"line":12,"character":11},"file":"src/lib.rs"},{"cursor":{"line":12,"character":5},"file":"src/lib.rs"},{"cursor":{"line":0,"character":4},"file":"src/lib.rs"},{"cursor":{"line":12,"character":3},"file":"src/lib.rs"},{"cursor":{"line":12,"character":6},"file":"src/lib.rs"},{"cursor":{"line":0,"character":10},"file":"src/lib.rs"},{"cursor":{"line":0,"character":3},"file":"src/lib.rs"},{"cursor":{"line":12,"character":4},"file":"src/lib.rs"},{"cursor":{"line":0,"character":10},"file":"src/lib.rs"}]
				`@ -0,0 +1 @@`
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