semantics_8_test.dart

// Copyright 2015 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/material.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:test/test.dart';

import 'test_semantics.dart';

void main() {
  test('Semantics 8 - Merging with reset', () {
    testWidgets((WidgetTester tester) {
      TestSemanticsListener client = new TestSemanticsListener();

      tester.pumpWidget(
        new MergeSemantics(
          child: new Semantics(
            container: true,
            child: new Semantics(
              container: true,
              child: new Stack(
                children: <Widget>[
                  new Semantics(
                    checked: true
                  ),
                  new Semantics(
                    label: 'label'
                  )
                ]
              )
            )
          )
        )
      );
      expect(client.updates.length, equals(2));
      expect(client.updates[0].id, equals(0));
      expect(client.updates[0].flags.canBeTapped, isFalse);
      expect(client.updates[0].flags.canBeLongPressed, isFalse);
      expect(client.updates[0].flags.canBeScrolledHorizontally, isFalse);
      expect(client.updates[0].flags.canBeScrolledVertically, isFalse);
      expect(client.updates[0].flags.hasCheckedState, isTrue);
      expect(client.updates[0].flags.isChecked, isTrue);
      expect(client.updates[0].strings.label, equals('label'));
      expect(client.updates[0].geometry.transform, isNull);
      expect(client.updates[0].geometry.left, equals(0.0));
      expect(client.updates[0].geometry.top, equals(0.0));
      expect(client.updates[0].geometry.width, equals(800.0));
      expect(client.updates[0].geometry.height, equals(600.0));
      expect(client.updates[0].children.length, equals(0));
      expect(client.updates[1], isNull);
      client.updates.clear();

      // switch the order of the inner Semantics node to trigger a reset
      tester.pumpWidget(
        new MergeSemantics(
          child: new Semantics(
            container: true,
            child: new Semantics(
              container: true,
              child: new Stack(
                children: <Widget>[
                  new Semantics(
                    label: 'label'
                  ),
                  new Semantics(
                    checked: true
                  )
                ]
              )
            )
          )
        )
      );
      expect(client.updates.length, equals(2));
      expect(client.updates[0].id, equals(0));
      expect(client.updates[0].flags.canBeTapped, isFalse);
      expect(client.updates[0].flags.canBeLongPressed, isFalse);
      expect(client.updates[0].flags.canBeScrolledHorizontally, isFalse);
      expect(client.updates[0].flags.canBeScrolledVertically, isFalse);
      expect(client.updates[0].flags.hasCheckedState, isTrue);
      expect(client.updates[0].flags.isChecked, isTrue);
      expect(client.updates[0].strings.label, equals('label'));
      expect(client.updates[0].geometry.transform, isNull);
      expect(client.updates[0].geometry.left, equals(0.0));
      expect(client.updates[0].geometry.top, equals(0.0));
      expect(client.updates[0].geometry.width, equals(800.0));
      expect(client.updates[0].geometry.height, equals(600.0));
      expect(client.updates[0].children.length, equals(0));
      expect(client.updates[1], isNull);
      client.updates.clear();

    });
  });
}