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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.
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
Widget wrap({ required Widget child, ThemeData? theme }) {
return MaterialApp(
theme: theme,
home: Center(
child: Material(child: child),
),
);
}
void main() {
testWidgets('ExpandIcon test', (WidgetTester tester) async {
bool expanded = false;
IconTheme iconTheme;
// Light mode tests
await tester.pumpWidget(wrap(
child: ExpandIcon(
onPressed: (bool isExpanded) {
expanded = !expanded;
},
),
));
await tester.pumpAndSettle();
expect(expanded, isFalse);
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.black54));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
expect(expanded, isTrue);
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.black54));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
expect(expanded, isFalse);
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.black54));
// Dark mode tests
await tester.pumpWidget(wrap(
child: ExpandIcon(
onPressed: (bool isExpanded) {
expanded = !expanded;
},
),
theme: ThemeData(brightness: Brightness.dark),
));
await tester.pumpAndSettle();
expect(expanded, isFalse);
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.white60));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
expect(expanded, isTrue);
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.white60));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
expect(expanded, isFalse);
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.white60));
});
testWidgets('ExpandIcon disabled', (WidgetTester tester) async {
IconTheme iconTheme;
// Light mode test
await tester.pumpWidget(wrap(
child: const ExpandIcon(onPressed: null),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.black38));
// Dark mode test
await tester.pumpWidget(wrap(
child: const ExpandIcon(onPressed: null),
theme: ThemeData(brightness: Brightness.dark),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.white38));
});
testWidgets('ExpandIcon test isExpanded does not trigger callback', (WidgetTester tester) async {
bool expanded = false;
await tester.pumpWidget(wrap(
child: ExpandIcon(
onPressed: (bool isExpanded) {
expanded = !expanded;
},
),
));
await tester.pumpWidget(wrap(
child: ExpandIcon(
isExpanded: true,
onPressed: (bool isExpanded) {
expanded = !expanded;
},
),
));
expect(expanded, isFalse);
});
testWidgets('ExpandIcon is rotated initially if isExpanded is true on first build', (WidgetTester tester) async {
bool expanded = true;
await tester.pumpWidget(wrap(
child: ExpandIcon(
isExpanded: expanded,
onPressed: (bool isExpanded) {
expanded = !isExpanded;
},
),
));
final RotationTransition rotation = tester.firstWidget(find.byType(RotationTransition));
expect(rotation.turns.value, 0.5);
});
testWidgets('ExpandIcon default size is 24', (WidgetTester tester) async {
final ExpandIcon expandIcon = ExpandIcon(
onPressed: (bool isExpanded) {},
);
await tester.pumpWidget(wrap(
child: expandIcon,
));
final ExpandIcon icon = tester.firstWidget(find.byWidget(expandIcon));
expect(icon.size, 24);
});
testWidgets('ExpandIcon has the correct given size', (WidgetTester tester) async {
ExpandIcon expandIcon = ExpandIcon(
size: 36,
onPressed: (bool isExpanded) {},
);
await tester.pumpWidget(wrap(
child: expandIcon,
));
ExpandIcon icon = tester.firstWidget(find.byWidget(expandIcon));
expect(icon.size, 36);
expandIcon = ExpandIcon(
size: 48,
onPressed: (bool isExpanded) {},
);
await tester.pumpWidget(wrap(
child: expandIcon,
));
icon = tester.firstWidget(find.byWidget(expandIcon));
expect(icon.size, 48);
});
testWidgets('ExpandIcon has correct semantic hints', (WidgetTester tester) async {
final SemanticsHandle handle = tester.ensureSemantics();
const DefaultMaterialLocalizations localizations = DefaultMaterialLocalizations();
await tester.pumpWidget(wrap(
child: ExpandIcon(
isExpanded: true,
onPressed: (bool _) { },
),
));
expect(tester.getSemantics(find.byType(ExpandIcon)), matchesSemantics(
hasTapAction: true,
hasEnabledState: true,
isEnabled: true,
isFocusable: true,
isButton: true,
onTapHint: localizations.expandedIconTapHint,
));
await tester.pumpWidget(wrap(
child: ExpandIcon(
onPressed: (bool _) { },
),
));
expect(tester.getSemantics(find.byType(ExpandIcon)), matchesSemantics(
hasTapAction: true,
hasEnabledState: true,
isEnabled: true,
isFocusable: true,
isButton: true,
onTapHint: localizations.collapsedIconTapHint,
));
handle.dispose();
});
testWidgets('ExpandIcon uses custom icon color and expanded icon color', (WidgetTester tester) async {
bool expanded = false;
IconTheme iconTheme;
await tester.pumpWidget(wrap(
child: StatefulBuilder(
builder: (BuildContext context, StateSetter setState) {
return ExpandIcon(
isExpanded: expanded,
onPressed: (bool isExpanded) {
setState(() {
expanded = !isExpanded;
});
},
color: Colors.indigo,
);
},
),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.indigo));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.indigo));
expanded = false;
await tester.pumpWidget(wrap(
child: StatefulBuilder(
builder: (BuildContext context, StateSetter setState) {
return ExpandIcon(
isExpanded: expanded,
onPressed: (bool isExpanded) {
setState(() {
expanded = !isExpanded;
});
},
color: Colors.indigo,
expandedColor: Colors.teal,
);
},
),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.indigo));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.teal));
await tester.tap(find.byType(ExpandIcon));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.indigo));
});
testWidgets('ExpandIcon uses custom disabled icon color', (WidgetTester tester) async {
IconTheme iconTheme;
await tester.pumpWidget(wrap(
child: const ExpandIcon(
onPressed: null,
disabledColor: Colors.cyan,
),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.cyan));
await tester.pumpWidget(wrap(
child: const ExpandIcon(
onPressed: null,
color: Colors.indigo,
disabledColor: Colors.cyan,
),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.cyan));
await tester.pumpWidget(wrap(
child: const ExpandIcon(
isExpanded: true,
onPressed: null,
disabledColor: Colors.cyan,
),
));
await tester.pumpWidget(wrap(
child: const ExpandIcon(
isExpanded: true,
onPressed: null,
expandedColor: Colors.teal,
disabledColor: Colors.cyan,
),
));
await tester.pumpAndSettle();
iconTheme = tester.firstWidget(find.byType(IconTheme).last);
expect(iconTheme.data.color, equals(Colors.cyan));
});
}