chore: import upstream snapshot with attribution

internal/parser/languages/batch_test.go

@@ -0,0 +1,67 @@
+package languages
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/zzet/gortex/internal/graph"
+)
+
+func TestBatchExtractor_Basics(t *testing.T) {
+	src := []byte(`@echo off
+call helpers.bat
+goto start
+
+:start
+echo starting
+call :setup
+goto done
+
+:setup
+echo setting up
+goto :eof
+
+:done
+echo done
+`)
+	e := NewBatchExtractor()
+	require.Equal(t, "batch", e.Language())
+
+	res, err := e.Extract("run.bat", src)
+	require.NoError(t, err)
+
+	var gotStart, gotSetup, gotDone bool
+	for _, n := range res.Nodes {
+		switch n.Name {
+		case "start":
+			gotStart = true
+		case "setup":
+			gotSetup = true
+		case "done":
+			gotDone = true
+		}
+	}
+	var gotImport, gotCallEdge bool
+	for _, ed := range res.Edges {
+		if ed.Kind == graph.EdgeImports && ed.To == "unresolved::import::helpers.bat" {
+			gotImport = true
+		}
+		if ed.Kind == graph.EdgeCalls && ed.To == "unresolved::setup" {
+			gotCallEdge = true
+		}
+	}
+	assert.True(t, gotStart)
+	assert.True(t, gotSetup)
+	assert.True(t, gotDone)
+	assert.True(t, gotImport)
+	assert.True(t, gotCallEdge)
+}
+
+func TestBatchExtractor_EmptyInput(t *testing.T) {
+	res, err := NewBatchExtractor().Extract("e.bat", []byte(""))
+	require.NoError(t, err)
+	require.Len(t, res.Nodes, 1)
+	assert.Equal(t, graph.KindFile, res.Nodes[0].Kind)
+}