diff --git a/corpus/no_argument.txt b/corpus/no_argument.txt
new file mode 100644
index 0000000..d97b5ff
--- /dev/null
+++ b/corpus/no_argument.txt
@@ -0,0 +1,11 @@
+===================================
+Command invocation without argument
+===================================
+
+message()
+
+---
+
+(source_file
+  (command_invocation
+  (identifier)))
\ No newline at end of file
diff --git a/corpus/one_argument.txt b/corpus/one_argument.txt
new file mode 100644
index 0000000..79034e8
--- /dev/null
+++ b/corpus/one_argument.txt
@@ -0,0 +1,16 @@
+====================================
+Command invocation with one argument
+====================================
+
+message(STATUS)
+
+---
+
+(source_file
+  (command_invocation
+    (identifier)
+    (arguments
+      (argument)
+    )
+  )
+)
\ No newline at end of file
diff --git a/corpus/two_arguments.txt b/corpus/two_arguments.txt
new file mode 100644
index 0000000..1a2b7fa
--- /dev/null
+++ b/corpus/two_arguments.txt
@@ -0,0 +1,17 @@
+=====================================
+Command invocation with two arguments
+=====================================
+
+message(STATUS Hello)
+
+---
+
+(source_file
+  (command_invocation
+    (identifier)
+    (arguments
+      (argument)
+      (argument)
+    )
+  )
+)
\ No newline at end of file