chore: import upstream snapshot with attribution

internal/parser/languages/vim_test.go

@@ -0,0 +1,63 @@
+package languages
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/zzet/gortex/internal/graph"
+)
+
+func TestVimExtractor_FunctionsAndLet(t *testing.T) {
+	src := []byte(`source ~/.vim/plugins.vim
+let g:plugin_name = 'gortex'
+
+function! s:setup()
+  let l:flags = 'rnw'
+endfunction
+
+function g:MyPlugin#init()
+  call s:setup()
+endfunction
+
+command! -nargs=1 Greet echo "hi"
+`)
+	e := NewVimExtractor()
+	require.Equal(t, "vim", e.Language())
+
+	res, err := e.Extract("plugin.vim", src)
+	require.NoError(t, err)
+
+	var gotSetup, gotInit, gotVar, gotCmd bool
+	for _, n := range res.Nodes {
+		switch n.Name {
+		case "setup":
+			gotSetup = true
+		case "MyPlugin#init":
+			gotInit = true
+		case "plugin_name":
+			gotVar = true
+		case "Greet":
+			gotCmd = true
+		}
+	}
+	var gotSource bool
+	for _, ed := range res.Edges {
+		if ed.Kind == graph.EdgeImports && ed.To == "unresolved::import::~/.vim/plugins.vim" {
+			gotSource = true
+		}
+	}
+	assert.True(t, gotSetup)
+	assert.True(t, gotInit)
+	assert.True(t, gotVar)
+	assert.True(t, gotCmd)
+	assert.True(t, gotSource)
+}
+
+func TestVimExtractor_EmptyInput(t *testing.T) {
+	res, err := NewVimExtractor().Extract("e.vim", []byte(""))
+	require.NoError(t, err)
+	require.Len(t, res.Nodes, 1)
+	assert.Equal(t, graph.KindFile, res.Nodes[0].Kind)
+}