Make sure that a Container doesn't crash in 0x0 environment #180350
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This pull request adds a regression test to ensure that a Container widget with a zero-sized area does not crash, addressing a previously reported issue. While the added test is a good start, it doesn't fully cover the conditions that led to the original crash. Specifically, the original issue was related to a Container with a BoxDecoration that included a borderRadius and boxShadow. I've suggested an improvement to the test to make it more comprehensive and accurately reflect the scenario that needs to be covered.
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| testWidgets('Container does not crash at zero area', (WidgetTester tester) async { | ||
| await tester.pumpWidget( | ||
| Directionality( | ||
| textDirection: TextDirection.ltr, | ||
| child: Center( | ||
| child: SizedBox.shrink(child: Container(child: const Text('X'))), | ||
| ), | ||
| ), | ||
| ); | ||
| expect(tester.getSize(find.byType(Container)), Size.zero); | ||
| }); |
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This test case is a good start for ensuring Container doesn't crash at zero size. However, the original issue (#6537) specifically mentions a crash when the Container has a BoxDecoration with borderRadius and boxShadow. To make this test more robust and ensure it covers the original bug, it would be better to include a similar decoration in the Container under test.
testWidgets('Container with decoration does not crash at zero area', (WidgetTester tester) async {
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: SizedBox.shrink(
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
boxShadow: const <BoxShadow>[
BoxShadow(blurRadius: 5.0),
],
),
child: const Text('X'),
),
),
),
),
);
expect(tester.getSize(find.byType(Container)), Size.zero);
});
justinmc
approved these changes
Dec 30, 2025
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justinmc
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LGTM but heads up there's an analyzer failure.
victorsanni
approved these changes
Dec 31, 2025
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|
autosubmit label was removed for flutter/flutter/180350, because - The status or check suite Linux analyzer_benchmark has failed. Please fix the issues identified (or deflake) before re-applying this label.
|
Contributor
Maybe add some decorations to suppress it. |
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Roll Flutter from 01d37bc to 73769a2 (65 revisions) flutter/flutter@01d37bc...73769a2 2026-01-10 engine-flutter-autoroll@skia.org Roll Dart SDK from 5e855c2bb3ef to 87fbfd5381b6 (1 revision) (flutter/flutter#180800) 2026-01-10 engine-flutter-autoroll@skia.org Roll Skia from b2b109f0e980 to f39cc645b1dd (2 revisions) (flutter/flutter#180796) 2026-01-10 engine-flutter-autoroll@skia.org Roll Dart SDK from b7963905e6a2 to 5e855c2bb3ef (2 revisions) (flutter/flutter#180794) 2026-01-10 ahmedsameha1@gmail.com Make sure that a CupertinoTabScaffold doesn't crash in 0x0 environment (flutter/flutter#179824) 2026-01-10 engine-flutter-autoroll@skia.org Roll Dart SDK from d25ad331b7ea to b7963905e6a2 (2 revisions) (flutter/flutter#180783) 2026-01-10 ahmedsameha1@gmail.com Make sure that a Container doesn't crash in 0x0 environment (flutter/flutter#180350) 2026-01-10 ahmedsameha1@gmail.com Make sure that an Expansible doesn't crash in 0x0 environment (flutter/flutter#180478) 2026-01-10 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Enabled some disabled impeller fragment shader dart tests (#180759)" (flutter/flutter#180785) 2026-01-09 dkwingsmt@users.noreply.github.com Merge `widget_tester_leaks_free_test.dart` into `widget_tester_test.dart` (flutter/flutter#180600) 2026-01-09 codefu@google.com fix: there are no riscv fuchsia artifacts (flutter/flutter#180779) 2026-01-09 engine-flutter-autoroll@skia.org Roll Skia from 7386219151e6 to b2b109f0e980 (1 revision) (flutter/flutter#180771) 2026-01-09 chinmaygarde@google.com Re-prioritize pipeline compile jobs and perform them eagerly instead of waiting. (flutter/flutter#180022) 2026-01-09 30870216+gaaclarke@users.noreply.github.com Enabled some disabled impeller fragment shader dart tests (flutter/flutter#180759) 2026-01-09 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from rxeg-6UB678HKJ4UQ... to 83Favz_zzMzdVuOHg... (flutter/flutter#180765) 2026-01-09 jhy03261997@gmail.com [A11y ] Add `clearSemantics`in table (flutter/flutter#180665) 2026-01-09 chinmaygarde@google.com Update CODEOWNERS to remove chinmaygarde. (flutter/flutter#180703) 2026-01-09 vhaudiquet343@hotmail.fr [ Tool ] Add support for linux riscv64 architecture (flutter/flutter#178711) 2026-01-09 engine-flutter-autoroll@skia.org Roll Skia from e9b3264ade0c to 7386219151e6 (12 revisions) (flutter/flutter#180754) 2026-01-09 engine-flutter-autoroll@skia.org Roll Dart SDK from fe2ba2c5dd50 to d25ad331b7ea (10 revisions) (flutter/flutter#180741) 2026-01-09 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Unpin google_mobile_ads (#180573)" (flutter/flutter#180761) 2026-01-09 koichi20021217@gmail.com Fix typo in dropdown_menu.dart (flutter/flutter#180172) 2026-01-09 engine-flutter-autoroll@skia.org Roll Packages from 039a026 to 51fe1d9 (1 revision) (flutter/flutter#180742) 2026-01-09 goderbauer@google.com Unpin google_mobile_ads (flutter/flutter#180573) 2026-01-09 evanwall@buffalo.edu Update flutter changelog for 3.38.6 (flutter/flutter#180708) 2026-01-08 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Fix iOS xattr removal to clear all extended attributes (#180355)" (flutter/flutter#180709) 2026-01-08 ahmedsameha1@gmail.com Make sure that an EditableText doesn't crash in 0x0 environment (flutter/flutter#180457) 2026-01-08 matt.kosarek@canonical.com Implementation of tooltip windows for win32 (flutter/flutter#179147) 2026-01-08 mdebbar@google.com [web] Don't serve files outside of project (flutter/flutter#180699) 2026-01-08 engine-flutter-autoroll@skia.org Roll Skia from 837be28dd218 to e9b3264ade0c (1 revision) (flutter/flutter#180702) 2026-01-08 sokolovskyi.konstantin@gmail.com Add new motion accessibility features to iOS. (flutter/flutter#178102) 2026-01-08 104009581+Saqib198@users.noreply.github.com Fix iOS xattr removal to clear all extended attributes (flutter/flutter#180355) 2026-01-08 bkonyi@google.com [ Widget Preview ] Move widget_preview_scaffold tests to `dev/integration_tests/widget_preview_scaffold` (flutter/flutter#180658) 2026-01-08 30870216+gaaclarke@users.noreply.github.com De-interleaves engine dart test output (flutter/flutter#180651) 2026-01-08 zhongliu88889@gmail.com [web] Fix SemanticsService.announce not working inside dialogs (flutter/flutter#179958) 2026-01-08 engine-flutter-autoroll@skia.org Roll Skia from 42233226ac56 to 837be28dd218 (2 revisions) (flutter/flutter#180693) 2026-01-08 iinozemtsev@google.com Roll Dart SDK to 3.11.0-296.2.beta (flutter/flutter#180685) 2026-01-08 116356835+AbdeMohlbi@users.noreply.github.com Improve code quality in `AndroidTouchProcessorTest.java` (flutter/flutter#180583) 2026-01-08 1961493+harryterkelsen@users.noreply.github.com Revert "Reverts "[reland] Unify canvas creation and Surface code in S…kwasm and CanvasKit (#179473)" (#180152)" (flutter/flutter#180610) 2026-01-08 engine-flutter-autoroll@skia.org Roll Skia from a0c407bce408 to 42233226ac56 (4 revisions) (flutter/flutter#180688) 2026-01-08 bkonyi@google.com [ Tool ] Fix flake in overall_experience_test.dart (flutter/flutter#180655) 2026-01-08 engine-flutter-autoroll@skia.org Roll Packages from 9705815 to 039a026 (6 revisions) (flutter/flutter#180684) 2026-01-08 104147021+MohammedTarigg@users.noreply.github.com flutter_tools: Auto-generate ExportOptions.plist for manual iOS code signing (flutter/flutter#177888) 2026-01-08 engine-flutter-autoroll@skia.org Roll Skia from 58837e160874 to a0c407bce408 (2 revisions) (flutter/flutter#180679) 2026-01-08 engine-flutter-autoroll@skia.org Roll Skia from 1e3266fdba86 to 58837e160874 (1 revision) (flutter/flutter#180677) 2026-01-08 engine-flutter-autoroll@skia.org Roll Skia from 3c47ea10638f to 1e3266fdba86 (4 revisions) (flutter/flutter#180675) 2026-01-08 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from dTvN_JVSCfGFRasvH... to rxeg-6UB678HKJ4UQ... (flutter/flutter#180673) ...
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This is my attempt to handle #6537 for the Container widget.