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Added a TabBar regression test (#9038)

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Hans Muller 2017-03-27 16:31:28 -07:00 committed by GitHub
parent 6bf0ceb02b
commit 26c36623b2
1 changed files with 29 additions and 0 deletions
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29
packages/flutter/test/material/tabs_test.dart
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@ -730,4 +730,33 @@ void main() {
expect(indicatorRect2.width, 400.0);
expect(indicatorRect2.height, 2.0);
});
testWidgets('TabBarView child disposed during animation', (WidgetTester tester) async {
// This is a regression test for this patch:
// https://github.com/flutter/flutter/pull/9015
final TabController controller = new TabController(
vsync: const TestVSync(),
length: 2,
);
Widget buildFrame() {
return new Material(
child: new TabBar(
key: new UniqueKey(),
controller: controller,
tabs: <Widget>[ new Text('A'), new Text('B') ],
),
);
}
await tester.pumpWidget(buildFrame());
// The original TabBar will be disposed. The controller should no
// longer have any listeners from the original TabBar.
await tester.pumpWidget(buildFrame());
controller.index = 1;
await tester.pump(const Duration(milliseconds: 300));
});
}