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[macOS] Clean up allocations in key responder tests #48048

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Nov 15, 2023

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Runs all FlutterChannelKeyResponderTest tests in an AutoReleasepoolTest, which ensures all allocations are cleaned up.

Also replaces the use of OCMock in FlutterChannelKeyResponderTest with a fake FlutterBasicMessageChannel subclass. This avoids unnecessary use of OCMock in the tests, which has been responsible for flakiness in some tests, in particular where the mock is used across threads. This test was not problematic, but the fake makes the tests more readable.

Issue: flutter/flutter#104789
Issue: flutter/flutter#127441
Issue: flutter/flutter#124840

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  • I listed at least one issue that this PR fixes in the description above.
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@gspencergoog gspencergoog left a comment

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32384589-a60f0e74-c078-11e7-9bc1-e5b5287aea9d

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I know practically 0% of Obj-C but the change make sense from 10k feet view.

@cbracken cbracken force-pushed the no-c-mock branch 2 times, most recently from 774e3a8 to 630d540 Compare November 15, 2023 01:11
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LGTM

@cbracken cbracken added the autosubmit Merge PR when tree becomes green via auto submit App label Nov 15, 2023
@auto-submit auto-submit bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Nov 15, 2023
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auto-submit bot commented Nov 15, 2023

auto label is removed for flutter/engine/48048, due to - The status or check suite Mac mac_clang_tidy_presubmit has failed. Please fix the issues identified (or deflake) before re-applying this label.

Runs all FlutterChannelKeyResponderTest tests in an AutoReleasepoolTest,
which ensures all allocations are cleaned up.

Also replaces the use of OCMock in FlutterChannelKeyResponderTest with a
fake FlutterBasicMessageChannel subclass. This avoids unnecessary use of
OCMock in the tests, which has been responsible for flakiness in some
tests, in particular where the mock is used across threads. This test
was not problematic, but the fake makes the tests more readable.

Also renames the static keyEvent() function CreateKeyEvent, in line with
our style guide.

Issue: flutter/flutter#104789
Issue: flutter/flutter#127441
Issue: flutter/flutter#124840
@cbracken cbracken added the autosubmit Merge PR when tree becomes green via auto submit App label Nov 15, 2023
@auto-submit auto-submit bot merged commit a7f2267 into flutter:main Nov 15, 2023
@cbracken cbracken deleted the no-c-mock branch November 15, 2023 02:31
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Nov 15, 2023
auto-submit bot pushed a commit to flutter/flutter that referenced this pull request Nov 15, 2023
…138459)

flutter/engine@bc5bbd3...a7f2267

2023-11-15 [email protected] [macOS] Clean up allocations in key responder tests (flutter/engine#48048)

If this roll has caused a breakage, revert this CL and stop the roller
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Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

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