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// 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/material.dart';
import 'package:flutter_test/flutter_test.dart';
class MockOnPressedFunction implements Function {
int called = 0;
void call() {
called++;
}
}
void main() {
MockOnPressedFunction mockOnPressedFunction;
setUp(() {
mockOnPressedFunction = new MockOnPressedFunction();
});
testWidgets('test default icon buttons are sized up to 48', (WidgetTester tester) async {
await tester.pumpWidget(
new Material(
child: new Center(
child: new IconButton(
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.link),
),
),
),
);
final RenderBox iconButton = tester.renderObject(find.byType(IconButton));
expect(iconButton.size, const Size(48.0, 48.0));
await tester.tap(find.byType(IconButton));
expect(mockOnPressedFunction.called, 1);
});
testWidgets('test small icons are sized up to 48dp', (WidgetTester tester) async {
await tester.pumpWidget(
new Material(
child: new Center(
child: new IconButton(
iconSize: 10.0,
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.link),
),
),
),
);
final RenderBox iconButton = tester.renderObject(find.byType(IconButton));
expect(iconButton.size, const Size(48.0, 48.0));
});
testWidgets('test icons can be small when total size is >48dp', (WidgetTester tester) async {
await tester.pumpWidget(
new Material(
child: new Center(
child: new IconButton(
iconSize: 10.0,
padding: const EdgeInsets.all(30.0),
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.link),
),
),
),
);
final RenderBox iconButton = tester.renderObject(find.byType(IconButton));
expect(iconButton.size, const Size(70.0, 70.0));
});
testWidgets('test default icon buttons are constrained', (WidgetTester tester) async {
await tester.pumpWidget(
new Material(
child: new Center(
child: new IconButton(
padding: EdgeInsets.zero,
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.ac_unit),
iconSize: 80.0,
),
),
),
);
final RenderBox box = tester.renderObject(find.byType(IconButton));
expect(box.size, const Size(80.0, 80.0));
});
testWidgets(
'test default icon buttons can be stretched if specified',
(WidgetTester tester) async {
await tester.pumpWidget(
new Material(
child: new Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget> [
new IconButton(
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.ac_unit),
),
],
),
),
);
final RenderBox box = tester.renderObject(find.byType(IconButton));
expect(box.size, const Size(48.0, 600.0));
});
testWidgets('test default padding', (WidgetTester tester) async {
await tester.pumpWidget(
new Material(
child: new Center(
child: new IconButton(
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.ac_unit),
iconSize: 80.0,
),
),
),
);
final RenderBox box = tester.renderObject(find.byType(IconButton));
expect(box.size, const Size(96.0, 96.0));
});
testWidgets('test tooltip', (WidgetTester tester) async {
await tester.pumpWidget(
new MaterialApp(
home: new Material(
child: new Center(
child: new IconButton(
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.ac_unit),
),
),
),
),
);
expect(find.byType(Tooltip), findsNothing);
// Clear the widget tree.
await tester.pumpWidget(new Container(key: new UniqueKey()));
await tester.pumpWidget(
new MaterialApp(
home: new Material(
child: new Center(
child: new IconButton(
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.ac_unit),
tooltip: 'Test tooltip',
),
),
),
),
);
expect(find.byType(Tooltip), findsOneWidget);
expect(find.byTooltip('Test tooltip'), findsOneWidget);
await tester.tap(find.byTooltip('Test tooltip'));
expect(mockOnPressedFunction.called, 1);
});
testWidgets('IconButton AppBar size', (WidgetTester tester) async {
await tester.pumpWidget(
new MaterialApp(
home: new Scaffold(
appBar: new AppBar(
actions: <Widget>[
new IconButton(
padding: EdgeInsets.zero,
onPressed: mockOnPressedFunction,
icon: const Icon(Icons.ac_unit),
),
],
),
),
),
);
final RenderBox barBox = tester.renderObject(find.byType(AppBar));
final RenderBox iconBox = tester.renderObject(find.byType(IconButton));
expect(iconBox.size.height, equals(barBox.size.height));
});
}