| // Copyright 2016 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_test/flutter_test.dart'; |
| import 'package:flutter/widgets.dart'; |
| |
| class TestValueKey<T> extends ValueKey<T> { |
| const TestValueKey(T value) : super(value); |
| } |
| |
| class NotEquals { |
| const NotEquals(); |
| @override |
| bool operator ==(dynamic other) => false; |
| @override |
| int get hashCode => 0; |
| } |
| |
| void main() { |
| testWidgets('Keys', (WidgetTester tester) async { |
| expect(new ValueKey<int>(nonconst(3)) == new ValueKey<int>(nonconst(3)), isTrue); |
| expect(new ValueKey<num>(nonconst(3)) == new ValueKey<int>(nonconst(3)), isFalse); |
| expect(new ValueKey<int>(nonconst(3)) == new ValueKey<int>(nonconst(2)), isFalse); |
| expect(const ValueKey<double>(double.nan) == const ValueKey<double>(double.nan), isFalse); |
| |
| expect(new Key(nonconst('')) == new ValueKey<String>(nonconst('')), isTrue); |
| expect(new ValueKey<String>(nonconst('')) == new ValueKey<String>(nonconst('')), isTrue); |
| expect(new TestValueKey<String>(nonconst('')) == new ValueKey<String>(nonconst('')), isFalse); |
| expect(new TestValueKey<String>(nonconst('')) == new TestValueKey<String>(nonconst('')), isTrue); |
| |
| expect(new ValueKey<String>(nonconst('')) == new ValueKey<dynamic>(nonconst('')), isFalse); |
| expect(new TestValueKey<String>(nonconst('')) == new TestValueKey<dynamic>(nonconst('')), isFalse); |
| |
| expect(new UniqueKey() == new UniqueKey(), isFalse); |
| final LocalKey k = new UniqueKey(); |
| expect(new UniqueKey() == new UniqueKey(), isFalse); |
| expect(k == k, isTrue); |
| |
| expect(new ValueKey<LocalKey>(k) == new ValueKey<LocalKey>(k), isTrue); |
| expect(new ValueKey<LocalKey>(k) == new ValueKey<UniqueKey>(k), isFalse); |
| expect(new ObjectKey(k) == new ObjectKey(k), isTrue); |
| |
| final NotEquals constNotEquals = nonconst(const NotEquals()); |
| expect(new ValueKey<NotEquals>(constNotEquals) == new ValueKey<NotEquals>(constNotEquals), isFalse); |
| expect(new ObjectKey(constNotEquals) == new ObjectKey(constNotEquals), isTrue); |
| |
| final Object constObject = nonconst(const Object()); |
| expect(new ObjectKey(constObject) == new ObjectKey(constObject), isTrue); |
| expect(new ObjectKey(new Object()) == new ObjectKey(new Object()), isFalse); |
| |
| expect(const ValueKey<bool>(true), hasOneLineDescription); |
| expect(new UniqueKey(), hasOneLineDescription); |
| expect(const ObjectKey(true), hasOneLineDescription); |
| expect(new GlobalKey(), hasOneLineDescription); |
| expect(new GlobalKey(debugLabel: 'hello'), hasOneLineDescription); |
| expect(const GlobalObjectKey(true), hasOneLineDescription); |
| }); |
| } |