chore: import upstream snapshot with attribution

internal/parser/languages/javascript_classarrow_test.go

@@ -0,0 +1,46 @@
+package languages
+
+import (
+	"testing"
+
+	"github.com/zzet/gortex/internal/graph"
+)
+
+func TestJavaScriptExtractor_ClassArrowField(t *testing.T) {
+	const js = `class Counter {
+  count = 0;
+  handleClick = () => {
+    this.count++;
+  };
+  render() { return null; }
+}
+`
+	res, err := NewJavaScriptExtractor().Extract("Counter.js", []byte(js))
+	if err != nil {
+		t.Fatal(err)
+	}
+	var handle *graph.Node
+	for _, n := range res.Nodes {
+		if n.Name == "handleClick" {
+			handle = n
+		}
+	}
+	if handle == nil {
+		t.Fatal("arrow-valued class field 'handleClick' was not extracted")
+	}
+	if handle.Kind != graph.KindMethod {
+		t.Errorf("handleClick should be a callable method, got %s", handle.Kind)
+	}
+	if handle.ID != "Counter.js::Counter.handleClick" {
+		t.Errorf("handleClick id = %q, want Counter.js::Counter.handleClick", handle.ID)
+	}
+	var memberEdge bool
+	for _, e := range res.Edges {
+		if e.Kind == graph.EdgeMemberOf && e.From == handle.ID && e.To == "Counter.js::Counter" {
+			memberEdge = true
+		}
+	}
+	if !memberEdge {
+		t.Errorf("handleClick should be member_of Counter")
+	}
+}