[shell] Fix engineId not being set after hot restart#174451
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HosseinYousefi merged 3 commits intoflutter:masterfrom Sep 10, 2025
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[shell] Fix engineId not being set after hot restart#174451HosseinYousefi merged 3 commits intoflutter:masterfrom
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This pull request addresses an issue where the engineId was not being preserved during a hot restart. The fix involves storing the engineId from the RunConfiguration within the Engine instance upon execution. This stored ID is then retrieved and applied to the new RunConfiguration during the hot restart process. Additionally, the RunConfiguration::SetEngineId method signature has been updated to accept a std::optional<int64_t>, improving API consistency with the underlying member type and allowing for the engine ID to be explicitly absent.
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@chinmaygarde, any ideas about the test here? It seems that there are no tests for |
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You could simulate that a
The behavior you are modifying is that updating the run configuration of an engine updates the engine ID. That its all initiated via the service protocol is incidental and more of an integration test concern. A unit-test focused on just Engine::Run should suffice. |
| configuration.SetEntrypoint("providesEngineId"); | ||
| RunEngine(shell.get(), std::move(configuration)); | ||
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| ASSERT_EQ(shell->GetEngine()->GetLastEngineId(), 99); |
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99 seems like a magic number here. RunConfiguration::SetEngineId to something else and assert that instead?
Also, run it again with a different ID to see that it stick? That way, this test should fail without your patch. As it stands, this test should work with or without your patch right?
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It seems that this test is dependent on the previous test setting the ID to 99. Can we make the test more standalone as Chinmay suggests?
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Ouch, that statement should be in different test. Hence the 99 magical value. The test tests for LastEngineId(). There is no LastEngineId without the patch, it was introduced in the PR.
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As I don't have the domain expertise here, I don't have anything to add in terms of the actual code review. Could you please land this faster @knopp?
@chinmaygarde is it possible to add this patch to a hotfix version? The issue with cronet_http package is blocked on this.
| configuration.SetEntrypoint("providesEngineId"); | ||
| RunEngine(shell.get(), std::move(configuration)); | ||
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| ASSERT_EQ(shell->GetEngine()->GetLastEngineId(), 99); |
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It seems that this test is dependent on the previous test setting the ID to 99. Can we make the test more standalone as Chinmay suggests?
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Apologies for the delay. I missed @chinmaygarde feedback and only got pinged now. The assert should be part of another test (once that sets the value 99). I'll move it. |
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flutter/flutter@a082096...5a6a1bf 2025-09-11 [email protected] Roll Dart SDK from 42045594dbc6 to f7d6a4732ab0 (2 revisions) (flutter/flutter#175222) 2025-09-11 [email protected] Roll Skia from 00c8b3f69de9 to ead9277819fc (2 revisions) (flutter/flutter#175221) 2025-09-11 [email protected] Roll Skia from 4a8817a48b25 to 00c8b3f69de9 (3 revisions) (flutter/flutter#175213) 2025-09-11 [email protected] Roll Fuchsia Linux SDK from 10x-JGF5zuuW8ik4K... to 1pTB3J5rn4YYugylf... (flutter/flutter#175210) 2025-09-11 [email protected] Roll Dart SDK from 1de2289e49fe to 42045594dbc6 (1 revision) (flutter/flutter#175203) 2025-09-10 [email protected] Roll Skia from cbb0388767d2 to 4a8817a48b25 (4 revisions) (flutter/flutter#175202) 2025-09-10 [email protected] Roll Skia from 55c9d697da52 to cbb0388767d2 (7 revisions) (flutter/flutter#175197) 2025-09-10 [email protected] Roll Dart SDK from f446144fb7c9 to 1de2289e49fe (3 revisions) (flutter/flutter#175192) 2025-09-10 [email protected] Roll Skia from c3a3d1e47699 to 55c9d697da52 (4 revisions) (flutter/flutter#175190) 2025-09-10 [email protected] Roll Packages from 2d651b2 to 03598e7 (5 revisions) (flutter/flutter#175185) 2025-09-10 [email protected] Roll Skia from 36f3c3fbec19 to c3a3d1e47699 (2 revisions) (flutter/flutter#175181) 2025-09-10 [email protected] Marks Linux plugin_test_android_standard to be unflaky (flutter/flutter#175163) 2025-09-10 [email protected] Roll Skia from 97497ee065e4 to 36f3c3fbec19 (5 revisions) (flutter/flutter#175178) 2025-09-10 [email protected] Marks Windows plugin_test_android_variants to be unflaky (flutter/flutter#175167) 2025-09-10 [email protected] Marks Linux plugin_test_android_variants to be unflaky (flutter/flutter#175162) 2025-09-10 [email protected] Marks Windows plugin_test_android_standard to be unflaky (flutter/flutter#175168) 2025-09-10 [email protected] Marks Mac plugin_test_android_standard to be unflaky (flutter/flutter#175166) 2025-09-10 [email protected] Marks Mac plugin_test_android_variants to be unflaky (flutter/flutter#175165) 2025-09-10 [email protected] [shell] Fix engineId not being set after hot restart (flutter/flutter#174451) 2025-09-10 [email protected] Roll Skia from 6acb8b29b60e to 97497ee065e4 (1 revision) (flutter/flutter#175152) 2025-09-10 [email protected] Roll Skia from 127786500ad0 to 6acb8b29b60e (1 revision) (flutter/flutter#175148) 2025-09-10 [email protected] Roll Skia from 04513dfdf517 to 127786500ad0 (2 revisions) (flutter/flutter#175145) 2025-09-09 [email protected] Roll Fuchsia Linux SDK from m7Qmvj5wtfPlMA8i8... to 10x-JGF5zuuW8ik4K... (flutter/flutter#175140) 2025-09-09 [email protected] Roll Skia from 416b3b42ece2 to 04513dfdf517 (5 revisions) (flutter/flutter#175137) 2025-09-09 [email protected] Roll Skia from 19ba56dde579 to 416b3b42ece2 (1 revision) (flutter/flutter#175134) 2025-09-09 [email protected] Adjust default CupertinoCheckbox size on desktop (flutter/flutter#172502) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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Fixes flutter#173474 *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].* ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Fixes flutter#173474 *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].* ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Fixes flutter#173474 *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].* ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Fixes flutter#173474 *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].* ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Fixes flutter#173474 *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].* ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Fixes #173474
If you had to change anything in the flutter/tests repo, include a link to the migration guide as per the breaking change policy.
Pre-launch Checklist
///).If you need help, consider asking for advice on the #hackers-new channel on Discord.
Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the
gemini-code-assistbot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.