ollama/template/template_test.go
Michael Yang 2c3fe1fd97 comments
2024-07-05 13:17:24 -07:00

339 lines
8.3 KiB
Go

package template
import (
"bufio"
"bytes"
"encoding/json"
"io"
"os"
"path/filepath"
"slices"
"strconv"
"testing"
"text/template"
"github.com/ollama/ollama/api"
"github.com/ollama/ollama/llm"
)
func TestFuncs(t *testing.T) {
t.Run("toJson", func(t *testing.T) {
cases := []struct {
input any
expected string
}{
{nil, "null"},
{true, "true"},
{false, "false"},
{0, "0"},
{1, "1"},
{1.0, "1"},
{1.1, "1.1"},
{"", `""`},
{"hello", `"hello"`},
{[]int{1, 2, 3}, "[1,2,3]"},
{[]string{"a", "b", "c"}, `["a","b","c"]`},
{map[string]int{"a": 1, "b": 2}, `{"a":1,"b":2}`},
{map[string]string{"a": "b", "c": "d"}, `{"a":"b","c":"d"}`},
}
for _, tt := range cases {
t.Run(tt.expected, func(t *testing.T) {
toJson, ok := funcs["toJson"].(func(any) string)
if !ok {
t.Fatal("toJson is not a function")
}
if s := toJson(tt.input); s != tt.expected {
t.Errorf("expected %q, got %q", tt.expected, s)
}
})
}
})
t.Run("add", func(t *testing.T) {
cases := []struct {
a, b int
expected int
}{
{0, 0, 0},
{0, 1, 1},
{1, 0, 1},
{1, 1, 2},
{1, -1, 0},
{-1, 1, 0},
{-1, -1, -2},
}
for _, tt := range cases {
t.Run(strconv.Itoa(tt.expected), func(t *testing.T) {
add, ok := funcs["add"].(func(int, int) int)
if !ok {
t.Fatal("add is not a function")
}
if n := add(tt.a, tt.b); n != tt.expected {
t.Errorf("expected %d, got %d", tt.expected, n)
}
})
}
})
t.Run("sub", func(t *testing.T) {
cases := []struct {
a, b int
expected int
}{
{0, 0, 0},
{0, 1, -1},
{1, 0, 1},
{1, 1, 0},
{1, -1, 2},
{-1, 1, -2},
{-1, -1, 0},
}
for _, tt := range cases {
t.Run(strconv.Itoa(tt.expected), func(t *testing.T) {
sub, ok := funcs["sub"].(func(int, int) int)
if !ok {
t.Fatal("sub is not a function")
}
if n := sub(tt.a, tt.b); n != tt.expected {
t.Errorf("expected %d, got %d", tt.expected, n)
}
})
}
})
}
func TestNamed(t *testing.T) {
f, err := os.Open(filepath.Join("testdata", "templates.jsonl"))
if err != nil {
t.Fatal(err)
}
defer f.Close()
scanner := bufio.NewScanner(f)
for scanner.Scan() {
var ss map[string]string
if err := json.Unmarshal(scanner.Bytes(), &ss); err != nil {
t.Fatal(err)
}
for k, v := range ss {
t.Run(k, func(t *testing.T) {
kv := llm.KV{"tokenizer.chat_template": v}
s := kv.ChatTemplate()
r, err := Named(s)
if err != nil {
t.Fatal(err)
}
if r.Name != k {
t.Errorf("expected %q, got %q", k, r.Name)
}
var b bytes.Buffer
if _, err := io.Copy(&b, r.Reader()); err != nil {
t.Fatal(err)
}
tmpl, err := template.New(s).Parse(b.String())
if err != nil {
t.Fatal(err)
}
if tmpl.Tree.Root.String() == "" {
t.Errorf("empty %s template", k)
}
})
}
}
}
func TestParse(t *testing.T) {
cases := []struct {
template string
vars []string
}{
{"{{ .Prompt }}", []string{"prompt", "response"}},
{"{{ .System }} {{ .Prompt }}", []string{"prompt", "response", "system"}},
{"{{ .System }} {{ .Prompt }} {{ .Response }}", []string{"prompt", "response", "system"}},
{"{{ with .Tools }}{{ . }}{{ end }} {{ .System }} {{ .Prompt }}", []string{"prompt", "response", "system", "tools"}},
{"{{ range .Messages }}{{ .Role }} {{ .Content }}{{ end }}", []string{"content", "messages", "role"}},
{"{{ range .Messages }}{{ if eq .Role \"system\" }}SYSTEM: {{ .Content }}{{ else if eq .Role \"user\" }}USER: {{ .Content }}{{ else if eq .Role \"assistant\" }}ASSISTANT: {{ .Content }}{{ end }}{{ end }}", []string{"content", "messages", "role"}},
}
for _, tt := range cases {
t.Run("", func(t *testing.T) {
tmpl, err := Parse(tt.template)
if err != nil {
t.Fatal(err)
}
vars := tmpl.Vars()
if !slices.Equal(tt.vars, vars) {
t.Errorf("expected %v, got %v", tt.vars, vars)
}
})
}
}
func TestExecuteWithMessages(t *testing.T) {
type template struct {
name string
template string
}
cases := []struct {
name string
templates []template
values Values
expected string
}{
{
"mistral",
[]template{
{"no response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] `},
{"response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] {{ .Response }}`},
{"messages", `{{- range .Messages }}
{{- if eq .Role "user" }}[INST] {{ if and (eq (index $.Messages (sub (len $.Messages) 1)) .) $.System }}{{ $.System }}{{ "\n\n" }}
{{- end }}{{ .Content }}[/INST] {{ else if eq .Role "assistant" }}{{ .Content }}
{{- end }}
{{- end }}`},
},
Values{
Messages: []api.Message{
{Role: "user", Content: "Hello friend!"},
{Role: "assistant", Content: "Hello human!"},
{Role: "user", Content: "What is your name?"},
},
},
`[INST] Hello friend![/INST] Hello human![INST] What is your name?[/INST] `,
},
{
"mistral system",
[]template{
{"no response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] `},
{"response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] {{ .Response }}`},
{"messages", `
{{- range .Messages }}
{{- if eq .Role "user" }}[INST] {{ if and (eq (index $.Messages (sub (len $.Messages) 1)) .) $.System }}{{ $.System }}{{ "\n\n" }}
{{- end }}{{ .Content }}[/INST] {{ else if eq .Role "assistant" }}{{ .Content }}
{{- end }}
{{- end }}`},
},
Values{
Messages: []api.Message{
{Role: "system", Content: "You are a helpful assistant!"},
{Role: "user", Content: "Hello friend!"},
{Role: "assistant", Content: "Hello human!"},
{Role: "user", Content: "What is your name?"},
},
},
`[INST] Hello friend![/INST] Hello human![INST] You are a helpful assistant!
What is your name?[/INST] `,
},
{
"chatml",
[]template{
// this does not have a "no response" test because it's impossible to render the same output
{"response", `{{ if .System }}<|im_start|>system
{{ .System }}<|im_end|>
{{ end }}{{ if .Prompt }}<|im_start|>user
{{ .Prompt }}<|im_end|>
{{ end }}<|im_start|>assistant
{{ .Response }}<|im_end|>
`},
{"messages", `
{{- range .Messages }}
{{- if and (eq .Role "user") (eq (index $.Messages (sub (len $.Messages) 1)) .) $.System }}<|im_start|>system
{{ $.System }}<|im_end|>{{ "\n" }}
{{- end }}<|im_start|>{{ .Role }}
{{ .Content }}<|im_end|>{{ "\n" }}
{{- end }}<|im_start|>assistant
`},
},
Values{
Messages: []api.Message{
{Role: "system", Content: "You are a helpful assistant!"},
{Role: "user", Content: "Hello friend!"},
{Role: "assistant", Content: "Hello human!"},
{Role: "user", Content: "What is your name?"},
},
},
`<|im_start|>user
Hello friend!<|im_end|>
<|im_start|>assistant
Hello human!<|im_end|>
<|im_start|>system
You are a helpful assistant!<|im_end|>
<|im_start|>user
What is your name?<|im_end|>
<|im_start|>assistant
`,
},
{
"moondream",
[]template{
// this does not have a "no response" test because it's impossible to render the same output
{"response", `{{ if .Prompt }}Question: {{ .Prompt }}
{{ end }}Answer: {{ .Response }}
`},
{"messages", `
{{- range .Messages }}
{{- if eq .Role "user" }}Question: {{ .Content }}{{ "\n\n" }}
{{- else if eq .Role "assistant" }}Answer: {{ .Content }}{{ "\n\n" }}
{{- end }}
{{- end }}Answer: `},
},
Values{
Messages: []api.Message{
{Role: "user", Content: "What's in this image?", Images: []api.ImageData{[]byte("")}},
{Role: "assistant", Content: "It's a hot dog."},
{Role: "user", Content: "What's in _this_ image?"},
{Role: "user", Images: []api.ImageData{[]byte("")}},
{Role: "user", Content: "Is it a hot dog?"},
},
},
`Question: [img-0] What's in this image?
Answer: It's a hot dog.
Question: What's in _this_ image?
[img-1]
Is it a hot dog?
Answer: `,
},
}
for _, tt := range cases {
t.Run(tt.name, func(t *testing.T) {
for _, ttt := range tt.templates {
t.Run(ttt.name, func(t *testing.T) {
tmpl, err := Parse(ttt.template)
if err != nil {
t.Fatal(err)
}
var b bytes.Buffer
if err := tmpl.Execute(&b, tt.values); err != nil {
t.Fatal(err)
}
if b.String() != tt.expected {
t.Errorf("expected\n%s,\ngot\n%s", tt.expected, b.String())
}
})
}
})
}
}