chore: import upstream snapshot with attribution

internal/parser/languages/declarative_ui_detect_test.go

@@ -0,0 +1,70 @@
+package languages
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestComposeDetect(t *testing.T) {
+	src := []byte(`import androidx.compose.runtime.Composable
+
+@Composable
+fun Greeting(name: String) {
+    Text(text = name)
+}
+
+fun plainFn() {}
+`)
+	res, err := NewKotlinExtractor().Extract("App.kt", src)
+	require.NoError(t, err)
+	assert.Equal(t, "compose", uiComp(res.Nodes, "Greeting"))
+	assert.Equal(t, "function", componentKind(res.Nodes, "Greeting"))
+	assert.Equal(t, "", uiComp(res.Nodes, "plainFn"), "a plain function is not a component")
+}
+
+func TestFlutterDetect(t *testing.T) {
+	src := []byte(`import 'package:flutter/material.dart';
+
+class MyWidget extends StatelessWidget {
+  Widget build(BuildContext context) => Container();
+}
+
+class MyStateful extends StatefulWidget {
+  State<MyStateful> createState() => _S();
+}
+
+class Plain {}
+`)
+	res, err := NewDartExtractor().Extract("app.dart", src)
+	require.NoError(t, err)
+
+	w := nodeByName(res.Nodes, "MyWidget")
+	require.NotNil(t, w)
+	assert.Equal(t, "flutter", w.Meta["ui_component"])
+	assert.Equal(t, "stateless", w.Meta["component_kind"])
+	assert.Equal(t, "class", w.Meta["type_flavor"])
+
+	sf := nodeByName(res.Nodes, "MyStateful")
+	require.NotNil(t, sf)
+	assert.Equal(t, "flutter", sf.Meta["ui_component"])
+	assert.Equal(t, "stateful", sf.Meta["component_kind"])
+
+	assert.Equal(t, "", uiComp(res.Nodes, "Plain"), "a plain class is not a Flutter widget")
+}
+
+func TestAngularDetect(t *testing.T) {
+	src := []byte(`import { Component } from '@angular/core'
+
+@Component({ selector: 'app-root', template: '<div></div>' })
+class AppComponent {}
+
+class Plain {}
+`)
+	res, err := NewTypeScriptExtractor().Extract("app.ts", src)
+	require.NoError(t, err)
+	assert.Equal(t, "angular", uiComp(res.Nodes, "AppComponent"))
+	assert.Equal(t, "class", componentKind(res.Nodes, "AppComponent"))
+	assert.Equal(t, "", uiComp(res.Nodes, "Plain"), "a plain class is not an Angular component")
+}