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matchers_test.dart
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matchers_test.dart
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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// flutter_ignore_for_file: golden_tag (see analyze.dart)
import 'dart:math' as math;
import 'dart:typed_data';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
/// Class that makes it easy to mock common toStringDeep behavior.
class _MockToStringDeep {
_MockToStringDeep(String str) : _lines = <String>[] {
final List<String> lines = str.split('\n');
for (int i = 0; i < lines.length - 1; ++i) {
_lines.add('${lines[i]}\n');
}
// If the last line is empty, that really just means that the previous
// line was terminated with a line break.
if (lines.isNotEmpty && lines.last.isNotEmpty) {
_lines.add(lines.last);
}
}
_MockToStringDeep.fromLines(this._lines);
/// Lines in the message to display when [toStringDeep] is called.
/// For correct toStringDeep behavior, each line should be terminated with a
/// line break.
final List<String> _lines;
String toStringDeep({ String prefixLineOne = '', String prefixOtherLines = '' }) {
final StringBuffer sb = StringBuffer();
if (_lines.isNotEmpty) {
sb.write('$prefixLineOne${_lines.first}');
}
for (int i = 1; i < _lines.length; ++i) {
sb.write('$prefixOtherLines${_lines[i]}');
}
return sb.toString();
}
@override
String toString() => toStringDeep();
}
void main() {
test('hasOneLineDescription', () {
expect('Hello', hasOneLineDescription);
expect('Hello\nHello', isNot(hasOneLineDescription));
expect(' Hello', isNot(hasOneLineDescription));
expect('Hello ', isNot(hasOneLineDescription));
expect(Object(), isNot(hasOneLineDescription));
});
test('hasAGoodToStringDeep', () {
expect(_MockToStringDeep('Hello\n World\n'), hasAGoodToStringDeep);
// Not terminated with a line break.
expect(_MockToStringDeep('Hello\n World'), isNot(hasAGoodToStringDeep));
// Trailing whitespace on last line.
expect(_MockToStringDeep('Hello\n World \n'),
isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('Hello\n World\t\n'),
isNot(hasAGoodToStringDeep));
// Leading whitespace on line 1.
expect(_MockToStringDeep(' Hello\n World \n'),
isNot(hasAGoodToStringDeep));
// Single line.
expect(_MockToStringDeep('Hello World'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('Hello World\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('Hello: World\nFoo: bar\n'),
hasAGoodToStringDeep);
expect(_MockToStringDeep('Hello: World\nFoo: 42\n'),
hasAGoodToStringDeep);
// Contains default Object.toString().
expect(_MockToStringDeep('Hello: World\nFoo: ${Object()}\n'),
isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n'), hasAGoodToStringDeep);
expect(_MockToStringDeep('A\n├─B\n╘══════\n'), hasAGoodToStringDeep);
// Last line is all whitespace or vertical line art.
expect(_MockToStringDeep('A\n├─B\n\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n│\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n│\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n│\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n╎\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n║\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n │\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n ╎\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n ║\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep('A\n├─B\n ││\n'), isNot(hasAGoodToStringDeep));
expect(_MockToStringDeep(
'A\n'
'├─B\n'
'│\n'
'└─C\n'), hasAGoodToStringDeep);
// Last line is all whitespace or vertical line art.
expect(_MockToStringDeep(
'A\n'
'├─B\n'
'│\n'), isNot(hasAGoodToStringDeep));
expect(
_MockToStringDeep.fromLines(<String>[
'Paragraph#00000\n',
' │ size: (400x200)\n',
' ╘═╦══ text ═══\n',
' ║ TextSpan:\n',
' ║ "I polished up that handle so carefullee\n',
' ║ That now I am the Ruler of the Queen\'s Navee!"\n',
' ╚═══════════\n',
]),
hasAGoodToStringDeep,
);
// Text span
expect(
_MockToStringDeep.fromLines(<String>[
'Paragraph#00000\n',
' │ size: (400x200)\n',
' ╘═╦══ text ═══\n',
' ║ TextSpan:\n',
' ║ "I polished up that handle so carefullee\nThat now I am the Ruler of the Queen\'s Navee!"\n',
' ╚═══════════\n',
]),
isNot(hasAGoodToStringDeep),
);
});
test('equalsIgnoringHashCodes', () {
expect('Foo#34219', equalsIgnoringHashCodes('Foo#00000'));
expect('Foo#34219', equalsIgnoringHashCodes('Foo#12345'));
expect('Foo#34219', equalsIgnoringHashCodes('Foo#abcdf'));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo')));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#')));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#0')));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#00')));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#00000 ')));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#000000')));
expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#123456')));
expect('Foo#34219:', equalsIgnoringHashCodes('Foo#00000:'));
expect('Foo#34219:', isNot(equalsIgnoringHashCodes('Foo#00000')));
expect('Foo#a3b4d', equalsIgnoringHashCodes('Foo#00000'));
expect('Foo#a3b4d', equalsIgnoringHashCodes('Foo#12345'));
expect('Foo#a3b4d', equalsIgnoringHashCodes('Foo#abcdf'));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo')));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#')));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#0')));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#00')));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#00000 ')));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#000000')));
expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#123456')));
expect('FOO#A3b4D', equalsIgnoringHashCodes('FOO#00000'));
expect('FOO#A3b4J', isNot(equalsIgnoringHashCodes('FOO#00000')));
expect('Foo#12345(Bar#9110f)',
equalsIgnoringHashCodes('Foo#00000(Bar#00000)'));
expect('Foo#12345(Bar#9110f)',
isNot(equalsIgnoringHashCodes('Foo#00000(Bar#)')));
expect('Foo', isNot(equalsIgnoringHashCodes('Foo#00000')));
expect('Foo#', isNot(equalsIgnoringHashCodes('Foo#00000')));
expect('Foo#3421', isNot(equalsIgnoringHashCodes('Foo#00000')));
expect('Foo#342193', isNot(equalsIgnoringHashCodes('Foo#00000')));
expect(<String>['Foo#a3b4d'], equalsIgnoringHashCodes(<String>['Foo#12345']));
expect(
<String>['Foo#a3b4d', 'Foo#12345'],
equalsIgnoringHashCodes(<String>['Foo#00000', 'Foo#00000']),
);
expect(
<String>['Foo#a3b4d', 'Bar#12345'],
equalsIgnoringHashCodes(<String>['Foo#00000', 'Bar#00000']),
);
expect(
<String>['Foo#a3b4d', 'Bar#12345'],
isNot(equalsIgnoringHashCodes(<String>['Bar#00000', 'Foo#00000'])),
);
expect(<String>['Foo#a3b4d'], isNot(equalsIgnoringHashCodes(<String>['Foo'])));
expect(
<String>['Foo#a3b4d'],
isNot(equalsIgnoringHashCodes(<String>['Foo#00000', 'Bar#00000'])),
);
});
test('moreOrLessEquals', () {
expect(0.0, moreOrLessEquals(1e-11));
expect(1e-11, moreOrLessEquals(0.0));
expect(-1e-11, moreOrLessEquals(0.0));
expect(0.0, isNot(moreOrLessEquals(1e11)));
expect(1e11, isNot(moreOrLessEquals(0.0)));
expect(-1e11, isNot(moreOrLessEquals(0.0)));
expect(0.0, isNot(moreOrLessEquals(1.0)));
expect(1.0, isNot(moreOrLessEquals(0.0)));
expect(-1.0, isNot(moreOrLessEquals(0.0)));
expect(1e-11, moreOrLessEquals(-1e-11));
expect(-1e-11, moreOrLessEquals(1e-11));
expect(11.0, isNot(moreOrLessEquals(-11.0, epsilon: 1.0)));
expect(-11.0, isNot(moreOrLessEquals(11.0, epsilon: 1.0)));
expect(11.0, moreOrLessEquals(-11.0, epsilon: 100.0));
expect(-11.0, moreOrLessEquals(11.0, epsilon: 100.0));
});
test('matrixMoreOrLessEquals', () {
expect(
Matrix4.rotationZ(math.pi),
matrixMoreOrLessEquals(Matrix4.fromList(<double>[
-1, 0, 0, 0,
0, -1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1,
]))
);
expect(
Matrix4.rotationZ(math.pi),
matrixMoreOrLessEquals(Matrix4.fromList(<double>[
-2, 0, 0, 0,
0, -2, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1,
]), epsilon: 2)
);
expect(
Matrix4.rotationZ(math.pi),
isNot(matrixMoreOrLessEquals(Matrix4.fromList(<double>[
-2, 0, 0, 0,
0, -2, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1,
])))
);
});
test('rectMoreOrLessEquals', () {
expect(
const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
rectMoreOrLessEquals(const Rect.fromLTRB(0.0, 0.0, 10.0, 10.00000000001)),
);
expect(
const Rect.fromLTRB(11.0, 11.0, 20.0, 20.0),
isNot(rectMoreOrLessEquals(const Rect.fromLTRB(-11.0, -11.0, 20.0, 20.0), epsilon: 1.0)),
);
expect(
const Rect.fromLTRB(11.0, 11.0, 20.0, 20.0),
rectMoreOrLessEquals(const Rect.fromLTRB(-11.0, -11.0, 20.0, 20.0), epsilon: 100.0),
);
});
test('within', () {
expect(0.0, within<double>(distance: 0.1, from: 0.05));
expect(0.0, isNot(within<double>(distance: 0.1, from: 0.2)));
expect(0, within<int>(distance: 1, from: 1));
expect(0, isNot(within<int>(distance: 1, from: 2)));
expect(const Color(0x00000000), within<Color>(distance: 1, from: const Color(0x01000000)));
expect(const Color(0x00000000), within<Color>(distance: 1, from: const Color(0x00010000)));
expect(const Color(0x00000000), within<Color>(distance: 1, from: const Color(0x00000100)));
expect(const Color(0x00000000), within<Color>(distance: 1, from: const Color(0x00000001)));
expect(const Color(0x00000000), within<Color>(distance: 1, from: const Color(0x01010101)));
expect(const Color(0x00000000), isNot(within<Color>(distance: 1, from: const Color(0x02000000))));
expect(const Offset(1.0, 0.0), within(distance: 1.0, from: Offset.zero));
expect(const Offset(1.0, 0.0), isNot(within(distance: 1.0, from: const Offset(-1.0, 0.0))));
expect(const Rect.fromLTRB(0.0, 1.0, 2.0, 3.0), within<Rect>(distance: 4.0, from: const Rect.fromLTRB(1.0, 3.0, 5.0, 7.0)));
expect(const Rect.fromLTRB(0.0, 1.0, 2.0, 3.0), isNot(within<Rect>(distance: 3.9, from: const Rect.fromLTRB(1.0, 3.0, 5.0, 7.0))));
expect(const Size(1.0, 1.0), within<Size>(distance: 1.415, from: const Size(2.0, 2.0)));
expect(const Size(1.0, 1.0), isNot(within<Size>(distance: 1.414, from: const Size(2.0, 2.0))));
expect(
() => within<bool>(distance: 1, from: false),
throwsArgumentError,
);
expect(
() => within<int>(distance: 1, from: 2, distanceFunction: (int a, int b) => -1).matches(1, <dynamic, dynamic>{}),
throwsArgumentError,
);
});
test('isSameColorAs', () {
expect(
const Color(0x87654321),
isSameColorAs(const _CustomColor(0x87654321)),
);
expect(
const _CustomColor(0x87654321),
isSameColorAs(const Color(0x87654321)),
);
expect(
const Color(0x12345678),
isNot(isSameColorAs(const _CustomColor(0x87654321))),
);
expect(
const _CustomColor(0x87654321),
isNot(isSameColorAs(const Color(0x12345678))),
);
expect(
const _CustomColor(0xFF123456),
isSameColorAs(const _CustomColor(0xFF123456, isEqual: false)),
);
});
group('coversSameAreaAs', () {
test('empty Paths', () {
expect(
Path(),
coversSameAreaAs(
Path(),
areaToCompare: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
),
);
});
test('mismatch', () {
final Path rectPath = Path()
..addRect(const Rect.fromLTRB(5.0, 5.0, 6.0, 6.0));
expect(
Path(),
isNot(coversSameAreaAs(
rectPath,
areaToCompare: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
)),
);
});
test('mismatch out of examined area', () {
final Path rectPath = Path()
..addRect(const Rect.fromLTRB(5.0, 5.0, 6.0, 6.0));
rectPath.addRect(const Rect.fromLTRB(5.0, 5.0, 6.0, 6.0));
expect(
Path(),
coversSameAreaAs(
rectPath,
areaToCompare: const Rect.fromLTRB(0.0, 0.0, 4.0, 4.0),
),
);
});
test('differently constructed rects match', () {
final Path rectPath = Path()
..addRect(const Rect.fromLTRB(5.0, 5.0, 6.0, 6.0));
final Path linePath = Path()
..moveTo(5.0, 5.0)
..lineTo(5.0, 6.0)
..lineTo(6.0, 6.0)
..lineTo(6.0, 5.0)
..close();
expect(
linePath,
coversSameAreaAs(
rectPath,
areaToCompare: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
),
);
});
test('partially overlapping paths', () {
final Path rectPath = Path()
..addRect(const Rect.fromLTRB(5.0, 5.0, 6.0, 6.0));
final Path linePath = Path()
..moveTo(5.0, 5.0)
..lineTo(5.0, 6.0)
..lineTo(6.0, 6.0)
..lineTo(6.0, 5.5)
..close();
expect(
linePath,
isNot(coversSameAreaAs(
rectPath,
areaToCompare: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
)),
);
});
});
group('matchesGoldenFile', () {
late _FakeComparator comparator;
Widget boilerplate(Widget child) {
return Directionality(
textDirection: TextDirection.ltr,
child: child,
);
}
setUp(() {
comparator = _FakeComparator();
goldenFileComparator = comparator;
});
group('matches', () {
testWidgets('if comparator succeeds', (WidgetTester tester) async {
await tester.pumpWidget(boilerplate(const Text('hello')));
final Finder finder = find.byType(Text);
await expectLater(finder, matchesGoldenFile('foo.png'));
expect(comparator.invocation, _ComparatorInvocation.compare);
expect(comparator.imageBytes, hasLength(greaterThan(0)));
expect(comparator.golden, Uri.parse('foo.png'));
});
testWidgets('list of integers', (WidgetTester tester) async {
await expectLater(<int>[1, 2], matchesGoldenFile('foo.png'));
expect(comparator.invocation, _ComparatorInvocation.compare);
expect(comparator.imageBytes, equals(<int>[1, 2]));
expect(comparator.golden, Uri.parse('foo.png'));
});
testWidgets('future list of integers', (WidgetTester tester) async {
await expectLater(Future<List<int>>.value(<int>[1, 2]), matchesGoldenFile('foo.png'));
expect(comparator.invocation, _ComparatorInvocation.compare);
expect(comparator.imageBytes, equals(<int>[1, 2]));
expect(comparator.golden, Uri.parse('foo.png'));
});
});
group('does not match', () {
testWidgets('if comparator returns false', (WidgetTester tester) async {
comparator.behavior = _ComparatorBehavior.returnFalse;
await tester.pumpWidget(boilerplate(const Text('hello')));
final Finder finder = find.byType(Text);
await expectLater(
() => expectLater(finder, matchesGoldenFile('foo.png')),
throwsA(isA<TestFailure>().having(
(TestFailure error) => error.message,
'message',
contains('does not match'),
)),
);
expect(comparator.invocation, _ComparatorInvocation.compare);
});
testWidgets('if comparator throws', (WidgetTester tester) async {
comparator.behavior = _ComparatorBehavior.throwTestFailure;
await tester.pumpWidget(boilerplate(const Text('hello')));
final Finder finder = find.byType(Text);
await expectLater(
() => expectLater(finder, matchesGoldenFile('foo.png')),
throwsA(isA<TestFailure>().having(
(TestFailure error) => error.message,
'message',
contains('fake message'),
)),
);
expect(comparator.invocation, _ComparatorInvocation.compare);
});
testWidgets('if finder finds no widgets', (WidgetTester tester) async {
await tester.pumpWidget(boilerplate(Container()));
final Finder finder = find.byType(Text);
await expectLater(
() => expectLater(finder, matchesGoldenFile('foo.png')),
throwsA(isA<TestFailure>().having(
(TestFailure error) => error.message,
'message',
contains('no widget was found'),
)),
);
expect(comparator.invocation, isNull);
});
testWidgets('if finder finds multiple widgets', (WidgetTester tester) async {
await tester.pumpWidget(boilerplate(const Column(
children: <Widget>[Text('hello'), Text('world')],
)));
final Finder finder = find.byType(Text);
await expectLater(
() => expectLater(finder, matchesGoldenFile('foo.png')),
throwsA(isA<TestFailure>().having(
(TestFailure error) => error.message,
'message',
contains('too many widgets'),
)),
);
expect(comparator.invocation, isNull);
});
});
testWidgets('calls update on comparator if autoUpdateGoldenFiles is true', (WidgetTester tester) async {
autoUpdateGoldenFiles = true;
await tester.pumpWidget(boilerplate(const Text('hello')));
final Finder finder = find.byType(Text);
await expectLater(finder, matchesGoldenFile('foo.png'));
expect(comparator.invocation, _ComparatorInvocation.update);
expect(comparator.imageBytes, hasLength(greaterThan(0)));
expect(comparator.golden, Uri.parse('foo.png'));
autoUpdateGoldenFiles = false;
});
});
group('matchesSemanticsData', () {
testWidgets('matches SemanticsData', (WidgetTester tester) async {
final SemanticsHandle handle = tester.ensureSemantics();
const Key key = Key('semantics');
await tester.pumpWidget(Semantics(
key: key,
namesRoute: true,
header: true,
button: true,
link: true,
onTap: () { },
onLongPress: () { },
label: 'foo',
hint: 'bar',
value: 'baz',
increasedValue: 'a',
decreasedValue: 'b',
textDirection: TextDirection.rtl,
onTapHint: 'scan',
onLongPressHint: 'fill',
customSemanticsActions: <CustomSemanticsAction, VoidCallback>{
const CustomSemanticsAction(label: 'foo'): () { },
const CustomSemanticsAction(label: 'bar'): () { },
},
));
expect(tester.getSemantics(find.byKey(key)),
matchesSemantics(
label: 'foo',
hint: 'bar',
value: 'baz',
increasedValue: 'a',
decreasedValue: 'b',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
namesRoute: true,
onTapHint: 'scan',
onLongPressHint: 'fill',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'bar'),
],
),
);
// Doesn't match custom actions
expect(tester.getSemantics(find.byKey(key)),
isNot(matchesSemantics(
label: 'foo',
hint: 'bar',
value: 'baz',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
namesRoute: true,
onTapHint: 'scan',
onLongPressHint: 'fill',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'barz'),
],
)),
);
// Doesn't match wrong hints
expect(tester.getSemantics(find.byKey(key)),
isNot(matchesSemantics(
label: 'foo',
hint: 'bar',
value: 'baz',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
namesRoute: true,
onTapHint: 'scans',
onLongPressHint: 'fills',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'bar'),
],
)),
);
handle.dispose();
});
testWidgets('Can match all semantics flags and actions', (WidgetTester tester) async {
int actions = 0;
int flags = 0;
const CustomSemanticsAction action = CustomSemanticsAction(label: 'test');
// ignore: deprecated_member_use
for (final int index in SemanticsAction.doNotUseWillBeDeletedWithoutWarningKeys) {
actions |= index;
}
// ignore: deprecated_member_use
for (final int index in SemanticsFlag.doNotUseWillBeDeletedWithoutWarningKeys) {
flags |= index;
}
final SemanticsData data = SemanticsData(
flags: flags,
actions: actions,
attributedLabel: AttributedString('a'),
attributedIncreasedValue: AttributedString('b'),
attributedValue: AttributedString('c'),
attributedDecreasedValue: AttributedString('d'),
attributedHint: AttributedString('e'),
tooltip: 'f',
textDirection: TextDirection.ltr,
rect: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
elevation: 3.0,
thickness: 4.0,
textSelection: null,
scrollIndex: null,
scrollChildCount: null,
scrollPosition: null,
scrollExtentMax: null,
scrollExtentMin: null,
platformViewId: 105,
customSemanticsActionIds: <int>[CustomSemanticsAction.getIdentifier(action)],
currentValueLength: 10,
maxValueLength: 15,
);
final _FakeSemanticsNode node = _FakeSemanticsNode(data);
expect(node, matchesSemantics(
rect: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
size: const Size(10.0, 10.0),
elevation: 3.0,
thickness: 4.0,
platformViewId: 105,
currentValueLength: 10,
maxValueLength: 15,
/* Flags */
hasCheckedState: true,
isChecked: true,
isCheckStateMixed: true,
isSelected: true,
isButton: true,
isSlider: true,
isKeyboardKey: true,
isLink: true,
isTextField: true,
isReadOnly: true,
hasEnabledState: true,
isFocused: true,
isFocusable: true,
isEnabled: true,
isInMutuallyExclusiveGroup: true,
isHeader: true,
isObscured: true,
isMultiline: true,
namesRoute: true,
scopesRoute: true,
isHidden: true,
isImage: true,
isLiveRegion: true,
hasToggledState: true,
isToggled: true,
hasImplicitScrolling: true,
/* Actions */
hasTapAction: true,
hasLongPressAction: true,
hasScrollLeftAction: true,
hasScrollRightAction: true,
hasScrollUpAction: true,
hasScrollDownAction: true,
hasIncreaseAction: true,
hasDecreaseAction: true,
hasShowOnScreenAction: true,
hasMoveCursorForwardByCharacterAction: true,
hasMoveCursorBackwardByCharacterAction: true,
hasMoveCursorForwardByWordAction: true,
hasMoveCursorBackwardByWordAction: true,
hasSetTextAction: true,
hasSetSelectionAction: true,
hasCopyAction: true,
hasCutAction: true,
hasPasteAction: true,
hasDidGainAccessibilityFocusAction: true,
hasDidLoseAccessibilityFocusAction: true,
hasDismissAction: true,
customActions: <CustomSemanticsAction>[action],
));
});
testWidgets('Can match child semantics', (WidgetTester tester) async {
final SemanticsHandle handle = tester.ensureSemantics();
const Key key = Key('a');
await tester.pumpWidget(Semantics(
key: key,
label: 'Foo',
container: true,
explicitChildNodes: true,
textDirection: TextDirection.ltr,
child: Semantics(
label: 'Bar',
textDirection: TextDirection.ltr,
),
));
final SemanticsNode node = tester.getSemantics(find.byKey(key));
expect(node, matchesSemantics(
label: 'Foo',
textDirection: TextDirection.ltr,
children: <Matcher>[
matchesSemantics(
label: 'Bar',
textDirection: TextDirection.ltr,
),
],
));
handle.dispose();
});
testWidgets('failure does not throw unexpected errors', (WidgetTester tester) async {
final SemanticsHandle handle = tester.ensureSemantics();
const Key key = Key('semantics');
await tester.pumpWidget(Semantics(
key: key,
namesRoute: true,
header: true,
button: true,
link: true,
onTap: () { },
onLongPress: () { },
label: 'foo',
hint: 'bar',
value: 'baz',
increasedValue: 'a',
decreasedValue: 'b',
textDirection: TextDirection.rtl,
onTapHint: 'scan',
onLongPressHint: 'fill',
customSemanticsActions: <CustomSemanticsAction, VoidCallback>{
const CustomSemanticsAction(label: 'foo'): () { },
const CustomSemanticsAction(label: 'bar'): () { },
},
));
// This should fail due to the mis-match between the `namesRoute` value.
void failedExpectation() => expect(tester.getSemantics(find.byKey(key)),
matchesSemantics(
// Adding the explicit `false` for test readability
// ignore: avoid_redundant_argument_values
namesRoute: false,
label: 'foo',
hint: 'bar',
value: 'baz',
increasedValue: 'a',
decreasedValue: 'b',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
onTapHint: 'scan',
onLongPressHint: 'fill',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'bar'),
],
),
);
expect(failedExpectation, throwsA(isA<TestFailure>()));
handle.dispose();
});
});
group('containsSemantics', () {
testWidgets('matches SemanticsData', (WidgetTester tester) async {
final SemanticsHandle handle = tester.ensureSemantics();
const Key key = Key('semantics');
await tester.pumpWidget(Semantics(
key: key,
namesRoute: true,
header: true,
button: true,
link: true,
onTap: () { },
onLongPress: () { },
label: 'foo',
hint: 'bar',
value: 'baz',
increasedValue: 'a',
decreasedValue: 'b',
textDirection: TextDirection.rtl,
onTapHint: 'scan',
onLongPressHint: 'fill',
customSemanticsActions: <CustomSemanticsAction, VoidCallback>{
const CustomSemanticsAction(label: 'foo'): () { },
const CustomSemanticsAction(label: 'bar'): () { },
},
));
expect(
tester.getSemantics(find.byKey(key)),
containsSemantics(
label: 'foo',
hint: 'bar',
value: 'baz',
increasedValue: 'a',
decreasedValue: 'b',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
namesRoute: true,
onTapHint: 'scan',
onLongPressHint: 'fill',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'bar'),
],
),
);
expect(
tester.getSemantics(find.byKey(key)),
isNot(containsSemantics(
label: 'foo',
hint: 'bar',
value: 'baz',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
namesRoute: true,
onTapHint: 'scan',
onLongPressHint: 'fill',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'barz'),
],
)),
reason: 'CustomSemanticsAction "barz" should not have matched "bar".'
);
expect(
tester.getSemantics(find.byKey(key)),
isNot(matchesSemantics(
label: 'foo',
hint: 'bar',
value: 'baz',
textDirection: TextDirection.rtl,
hasTapAction: true,
hasLongPressAction: true,
isButton: true,
isLink: true,
isHeader: true,
namesRoute: true,
onTapHint: 'scans',
onLongPressHint: 'fills',
customActions: <CustomSemanticsAction>[
const CustomSemanticsAction(label: 'foo'),
const CustomSemanticsAction(label: 'bar'),
],
)),
reason: 'onTapHint "scans" should not have matched "scan".',
);
handle.dispose();
});
testWidgets('can match all semantics flags and actions enabled', (WidgetTester tester) async {
int actions = 0;
int flags = 0;
const CustomSemanticsAction action = CustomSemanticsAction(label: 'test');
// ignore: deprecated_member_use
for (final int index in SemanticsAction.doNotUseWillBeDeletedWithoutWarningKeys) {
actions |= index;
}
// ignore: deprecated_member_use
for (final int index in SemanticsFlag.doNotUseWillBeDeletedWithoutWarningKeys) {
flags |= index;
}
final SemanticsData data = SemanticsData(
flags: flags,
actions: actions,
attributedLabel: AttributedString('a'),
attributedIncreasedValue: AttributedString('b'),
attributedValue: AttributedString('c'),
attributedDecreasedValue: AttributedString('d'),
attributedHint: AttributedString('e'),
tooltip: 'f',
textDirection: TextDirection.ltr,
rect: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
elevation: 3.0,
thickness: 4.0,
textSelection: null,
scrollIndex: null,
scrollChildCount: null,
scrollPosition: null,
scrollExtentMax: null,
scrollExtentMin: null,
platformViewId: 105,
customSemanticsActionIds: <int>[CustomSemanticsAction.getIdentifier(action)],
currentValueLength: 10,
maxValueLength: 15,
);
final _FakeSemanticsNode node = _FakeSemanticsNode(data);
expect(
node,
containsSemantics(
rect: const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0),
size: const Size(10.0, 10.0),
elevation: 3.0,
thickness: 4.0,
platformViewId: 105,
currentValueLength: 10,
maxValueLength: 15,
/* Flags */
hasCheckedState: true,
isChecked: true,
isSelected: true,
isButton: true,
isSlider: true,
isKeyboardKey: true,
isLink: true,
isTextField: true,
isReadOnly: true,
hasEnabledState: true,
isFocused: true,
isFocusable: true,
isEnabled: true,
isInMutuallyExclusiveGroup: true,
isHeader: true,
isObscured: true,
isMultiline: true,
namesRoute: true,
scopesRoute: true,
isHidden: true,
isImage: true,
isLiveRegion: true,
hasToggledState: true,
isToggled: true,
hasImplicitScrolling: true,
/* Actions */
hasTapAction: true,
hasLongPressAction: true,
hasScrollLeftAction: true,
hasScrollRightAction: true,
hasScrollUpAction: true,
hasScrollDownAction: true,
hasIncreaseAction: true,
hasDecreaseAction: true,
hasShowOnScreenAction: true,
hasMoveCursorForwardByCharacterAction: true,
hasMoveCursorBackwardByCharacterAction: true,
hasMoveCursorForwardByWordAction: true,
hasMoveCursorBackwardByWordAction: true,
hasSetTextAction: true,
hasSetSelectionAction: true,
hasCopyAction: true,
hasCutAction: true,
hasPasteAction: true,
hasDidGainAccessibilityFocusAction: true,
hasDidLoseAccessibilityFocusAction: true,
hasDismissAction: true,
customActions: <CustomSemanticsAction>[action],
),
);
});
testWidgets('can match all flags and actions disabled', (WidgetTester tester) async {
final SemanticsData data = SemanticsData(
flags: 0,
actions: 0,