Make sure that an InputChip doesn't crash in 0x0 environment #175930
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This pull request adds a regression test to ensure that InputChip does not crash when rendered in a zero-sized environment. The test is well-structured and covers the basic case. I've suggested an improvement to make the test more comprehensive by covering additional InputChip configurations, such as those with an avatar or a delete icon, to prevent future regressions.
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| testWidgets('InputChip does not crash at zero area', (WidgetTester tester) async { | ||
| await tester.pumpWidget( | ||
| const MaterialApp( | ||
| home: Scaffold( | ||
| body: Center( | ||
| child: SizedBox.shrink(child: InputChip(label: Text('X'))), | ||
| ), | ||
| ), | ||
| ), | ||
| ); | ||
| expect(tester.getSize(find.byType(InputChip)), Size.zero); | ||
| }); |
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This is a good test for the base case. To make it more robust and prevent future regressions, consider expanding it to cover more InputChip configurations. Specifically, testing with an avatar and an onDeleted callback (which adds a delete icon) would ensure that other chip layouts also handle the zero-sized environment correctly. A helper function can be used to avoid code duplication.
testWidgets('InputChip does not crash at zero area', (WidgetTester tester) async {
Future<void> testChip(Widget chip) async {
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: SizedBox.shrink(child: chip),
),
),
),
);
expect(tester.getSize(find.byType(InputChip)), Size.zero);
}
await testChip(const InputChip(label: Text('X')));
await testChip(const InputChip(label: Text('X'), avatar: CircleAvatar(child: Text('A'))));
await testChip(InputChip(label: const Text('X'), onDeleted: () {}));
});
victorsanni
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Sep 29, 2025
dkwingsmt
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Oct 10, 2025
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Checklist:
- The test is in the correct file
- The test name goes “does not crash at zero area”
- The target widget is wrapped by
Center(or is fullscreen) - The target widget does not have an overlay, or the overlay is tested
- The target widget is expected to have a size of exactly
Size.zero
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…#175930) This is my attempt to handle flutter#6537 for the InputChip widget. --------- Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>
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This is my attempt to handle #6537 for the InputChip widget.