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Write tests for API examples of BottomNavigationBar and IconButton (#138188)

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This PR writes tests for a few of the API examples (not all), as requested in #130459. For the test names, I used the existing tests in the `api` folder as guide.
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Jasper van Riet 2023-11-27 18:26:37 +01:00 committed by GitHub
parent 9a930dd6f9
commit ec639f359c
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5 changed files with 135 additions and 4 deletions
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4
dev/bots/check_code_samples.dart
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@ -338,13 +338,9 @@ final Set<String> _knownMissingTests = <String>{
'examples/api/test/material/snack_bar/snack_bar.0_test.dart',
'examples/api/test/material/snack_bar/snack_bar.2_test.dart',
'examples/api/test/material/snack_bar/snack_bar.1_test.dart',
'examples/api/test/material/bottom_navigation_bar/bottom_navigation_bar.0_test.dart',
'examples/api/test/material/bottom_navigation_bar/bottom_navigation_bar.1_test.dart',
'examples/api/test/material/outlined_button/outlined_button.0_test.dart',
'examples/api/test/material/icon_button/icon_button.2_test.dart',
'examples/api/test/material/icon_button/icon_button.3_test.dart',
'examples/api/test/material/icon_button/icon_button.0_test.dart',
'examples/api/test/material/icon_button/icon_button.1_test.dart',
'examples/api/test/material/expansion_panel/expansion_panel_list.expansion_panel_list_radio.0_test.dart',
'examples/api/test/material/input_decorator/input_decoration.1_test.dart',
'examples/api/test/material/input_decorator/input_decoration.prefix_icon_constraints.0_test.dart',

32
examples/api/test/material/bottom_navigation_bar/bottom_navigation_bar.0_test.dart Normal file
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@ -0,0 +1,32 @@
// 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.
import 'package:flutter/material.dart';
import 'package:flutter_api_samples/material/bottom_navigation_bar/bottom_navigation_bar.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('BottomNavigationBar Updates Screen Content', (WidgetTester tester) async {
await tester.pumpWidget(
const example.BottomNavigationBarExampleApp(),
);
expect(find.widgetWithText(AppBar, 'BottomNavigationBar Sample'), findsOneWidget);
expect(find.byType(BottomNavigationBar), findsOneWidget);
expect(find.widgetWithText(Center, 'Index 0: Home'), findsOneWidget);
await tester.tap(find.byIcon(Icons.business));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 1: Business'), findsOneWidget);
await tester.tap(find.byIcon(Icons.school));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 2: School'), findsOneWidget);
// Verify we can go back
await tester.tap(find.byIcon(Icons.home));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 0: Home'), findsOneWidget);
});
}

36
examples/api/test/material/bottom_navigation_bar/bottom_navigation_bar.1_test.dart Normal file
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@ -0,0 +1,36 @@
// 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.
import 'package:flutter/material.dart';
import 'package:flutter_api_samples/material/bottom_navigation_bar/bottom_navigation_bar.1.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('BottomNavigationBar Updates Screen Content', (WidgetTester tester) async {
await tester.pumpWidget(
const example.BottomNavigationBarExampleApp(),
);
expect(find.widgetWithText(AppBar, 'BottomNavigationBar Sample'), findsOneWidget);
expect(find.byType(BottomNavigationBar), findsOneWidget);
expect(find.widgetWithText(Center, 'Index 0: Home'), findsOneWidget);
await tester.tap(find.byIcon(Icons.business));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 1: Business'), findsOneWidget);
await tester.tap(find.byIcon(Icons.school));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 2: School'), findsOneWidget);
await tester.tap(find.byIcon(Icons.settings));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 3: Settings'), findsOneWidget);
// Verify we can go back
await tester.tap(find.byIcon(Icons.home));
await tester.pumpAndSettle();
expect(find.widgetWithText(Center, 'Index 0: Home'), findsOneWidget);
});
}

35
examples/api/test/material/icon_button/icon_button.0_test.dart Normal file
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@ -0,0 +1,35 @@
// 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.
import 'package:flutter/material.dart';
import 'package:flutter_api_samples/material/icon_button/icon_button.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('IconButton increments volume when tapped', (WidgetTester tester) async {
await tester.pumpWidget(
const example.IconButtonExampleApp(),
);
expect(find.byIcon(Icons.volume_up), findsOneWidget);
expect(find.text('Volume : 0.0'), findsOneWidget);
await tester.tap(find.byType(IconButton));
await tester.pumpAndSettle();
expect(find.text('Volume : 10.0'), findsOneWidget);
});
testWidgets('IconButton shows tooltip when long pressed', (WidgetTester tester) async {
await tester.pumpWidget(
const example.IconButtonExampleApp(),
);
expect(find.text('Increase volume by 10'), findsNothing);
await tester.longPress(find.byType(IconButton));
await tester.pumpAndSettle();
expect(find.text('Increase volume by 10'), findsOneWidget);
});
}

32
examples/api/test/material/icon_button/icon_button.1_test.dart Normal file
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@ -0,0 +1,32 @@
// 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.
import 'package:flutter/material.dart';
import 'package:flutter_api_samples/material/icon_button/icon_button.1.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('IconButton', (WidgetTester tester) async {
await tester.pumpWidget(
const example.IconButtonExampleApp(),
);
await tester.pumpAndSettle();
expect(find.byIcon(Icons.android), findsOneWidget);
final Ink ink = tester.widget<Ink>(
find.ancestor(
of: find.byIcon(Icons.android),
matching: find.byType(Ink),
),
);
final ShapeDecoration decoration = ink.decoration! as ShapeDecoration;
expect(decoration.color, Colors.lightBlue);
expect(decoration.shape, const CircleBorder());
final IconButton iconButton = ink.child! as IconButton;
expect(iconButton.color, Colors.white) ;
});
}