packages/devtools_app/test/debugger/variables_test.dart

// Copyright 2022 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:devtools_app/devtools_app.dart';
import 'package:devtools_app/src/shared/console/widgets/expandable_variable.dart';
import 'package:devtools_app/src/shared/diagnostics/dart_object_node.dart';
import 'package:devtools_app/src/shared/tree.dart';
import 'package:devtools_app_shared/ui.dart';
import 'package:devtools_app_shared/utils.dart';
import 'package:devtools_test/devtools_test.dart';
import 'package:devtools_test/helpers.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  setUp(() {
    final service = createMockVmServiceWrapperWithDefaults();
    final manager = FakeServiceConnectionManager(service: service);
    setGlobal(ServiceConnectionManager, manager);
  });

  group('debugger variables', () {
    late DartObjectNode objectNode;

    setUp(() {
      setGlobal(IdeTheme, IdeTheme());
      objectNode = DartObjectNode.text('test node');
    });

    Future<void> pumpExpandableVariable(
      WidgetTester tester,
      DartObjectNode? variable,
    ) async {
      await tester.pumpWidget(
        wrap(
          ExpandableVariable(
            variable: variable,
          ),
        ),
      );
      await tester.pumpAndSettle();
      expect(find.byType(ExpandableVariable), findsOneWidget);
    }

    testWidgets(
      'ExpandableVariable builds without error',
      (WidgetTester tester) async {
        await pumpExpandableVariable(tester, objectNode);
        expect(find.byType(TreeView<DartObjectNode>), findsOneWidget);
        expect(
          find.byKey(ExpandableVariable.emptyExpandableVariableKey),
          findsNothing,
        );
      },
    );

    testWidgets(
      'ExpandableVariable builds for null variable',
      (WidgetTester tester) async {
        await pumpExpandableVariable(tester, null);
        expect(find.byType(TreeView<DartObjectNode>), findsNothing);
        expect(
          find.byKey(ExpandableVariable.emptyExpandableVariableKey),
          findsOneWidget,
        );
      },
    );
  });
}