flutter-go/packages/flutter_web/test/widgets/semantics_11_test.dart

// Copyright 2017 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:flutter_web/material.dart';
import 'package:flutter_web/widgets.dart';
import 'package:flutter_web/rendering.dart';
import 'package:flutter_web_test/flutter_web_test.dart';

import 'semantics_tester.dart';

void main() {
  testWidgets(
      'markNeedsSemanticsUpdate() called on non-boundary with non-boundary parent',
      (WidgetTester tester) async {
    final SemanticsTester semantics = SemanticsTester(tester);

    await tester.pumpWidget(
      Semantics(
        container: true,
        onTap: dummyTapHandler,
        child: Semantics(
          onTap: dummyTapHandler,
          child: Semantics(
            onTap: dummyTapHandler,
            textDirection: TextDirection.ltr,
            label: 'foo',
          ),
        ),
      ),
    );

    expect(
        semantics,
        hasSemantics(
            TestSemantics.root(
              children: <TestSemantics>[
                TestSemantics.rootChild(
                  id: 1,
                  actions: SemanticsAction.tap.index,
                  children: <TestSemantics>[
                    TestSemantics(
                      id: 2,
                      actions: SemanticsAction.tap.index,
                      children: <TestSemantics>[
                        TestSemantics(
                          id: 3,
                          actions: SemanticsAction.tap.index,
                          label: 'foo',
                        )
                      ],
                    ),
                  ],
                )
              ],
            ),
            ignoreRect: true,
            ignoreTransform: true));

    // make a change causing call to markNeedsSemanticsUpdate()

    // This should not throw an assert.
    await tester.pumpWidget(
      Semantics(
        container: true,
        onTap: dummyTapHandler,
        child: Semantics(
          onTap: dummyTapHandler,
          child: Semantics(
            onTap: dummyTapHandler,
            textDirection: TextDirection.ltr,
            label: 'bar', // <-- only change
          ),
        ),
      ),
    );

    expect(
        semantics,
        hasSemantics(
            TestSemantics.root(
              children: <TestSemantics>[
                TestSemantics.rootChild(
                  id: 1,
                  actions: SemanticsAction.tap.index,
                  children: <TestSemantics>[
                    TestSemantics(
                      id: 2,
                      actions: SemanticsAction.tap.index,
                      children: <TestSemantics>[
                        TestSemantics(
                          id: 3,
                          actions: SemanticsAction.tap.index,
                          label: 'bar',
                        )
                      ],
                    ),
                  ],
                )
              ],
            ),
            ignoreRect: true,
            ignoreTransform: true));

    semantics.dispose();
  });
}

void dummyTapHandler() {}