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94 lines
3.7 KiB
Dart
94 lines
3.7 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
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void main() {
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test('MaterialStatesController constructor', () {
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expect(MaterialStatesController().value, <MaterialState>{});
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expect(MaterialStatesController(<MaterialState>{}).value, <MaterialState>{});
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expect(MaterialStatesController(<MaterialState>{MaterialState.selected}).value, <MaterialState>{MaterialState.selected});
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});
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test('MaterialStatesController dispatches memory events', () async {
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await expectLater(
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await memoryEvents(() => MaterialStatesController().dispose(), MaterialStatesController),
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areCreateAndDispose,
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);
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});
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test('MaterialStatesController update, listener', () {
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int count = 0;
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void valueChanged() {
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count += 1;
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}
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final MaterialStatesController controller = MaterialStatesController();
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controller.addListener(valueChanged);
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controller.update(MaterialState.selected, true);
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expect(controller.value, <MaterialState>{MaterialState.selected});
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expect(count, 1);
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controller.update(MaterialState.selected, true);
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expect(controller.value, <MaterialState>{MaterialState.selected});
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expect(count, 1);
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controller.update(MaterialState.hovered, false);
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expect(count, 1);
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expect(controller.value, <MaterialState>{MaterialState.selected});
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controller.update(MaterialState.selected, false);
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expect(count, 2);
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expect(controller.value, <MaterialState>{});
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controller.update(MaterialState.hovered, true);
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expect(controller.value, <MaterialState>{MaterialState.hovered});
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expect(count, 3);
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controller.update(MaterialState.hovered, true);
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expect(controller.value, <MaterialState>{MaterialState.hovered});
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expect(count, 3);
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controller.update(MaterialState.pressed, true);
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expect(controller.value, <MaterialState>{MaterialState.hovered, MaterialState.pressed});
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expect(count, 4);
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controller.update(MaterialState.selected, true);
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expect(controller.value, <MaterialState>{MaterialState.hovered, MaterialState.pressed, MaterialState.selected});
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expect(count, 5);
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controller.update(MaterialState.selected, false);
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expect(controller.value, <MaterialState>{MaterialState.hovered, MaterialState.pressed});
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expect(count, 6);
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controller.update(MaterialState.selected, false);
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expect(controller.value, <MaterialState>{MaterialState.hovered, MaterialState.pressed});
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expect(count, 6);
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controller.update(MaterialState.pressed, false);
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expect(controller.value, <MaterialState>{MaterialState.hovered});
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expect(count, 7);
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controller.update(MaterialState.hovered, false);
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expect(controller.value, <MaterialState>{});
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expect(count, 8);
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controller.removeListener(valueChanged);
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controller.update(MaterialState.selected, true);
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expect(controller.value, <MaterialState>{MaterialState.selected});
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expect(count, 8);
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});
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test('MaterialStatesController const initial value', () {
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int count = 0;
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void valueChanged() {
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count += 1;
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}
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final MaterialStatesController controller = MaterialStatesController(const <MaterialState>{MaterialState.selected});
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controller.addListener(valueChanged);
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controller.update(MaterialState.selected, true);
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expect(controller.value, <MaterialState>{MaterialState.selected});
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expect(count, 0);
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controller.update(MaterialState.selected, false);
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expect(controller.value, <MaterialState>{});
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expect(count, 1);
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});
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}
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