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Merged
auto-submit merged 6 commits into from
Sep 16, 2024
Merged

Catch unable to start app exception #154970

auto-submit merged 6 commits into from
Sep 16, 2024

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@christopherfujino
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@christopherfujino christopherfujino commented Sep 11, 2024 •
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Fixes #153433

@github-actions github-actions bot added the tool Affects the "flutter" command-line tool. See also t: labels. label Sep 11, 2024
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christopherfujino commented Sep 11, 2024

This worked in my local testing. I'm putting out this PR to see if it passes all integration tests. If so, I will add a specific test for this.

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christopherfujino commented Sep 11, 2024

This worked in my local testing. I'm putting out this PR to see if it passes all integration tests. If so, I will add a specific test for this.

It appears this change is causing a set of integration tests to deadlock. I suspect it's because I'm now await-ing two futures together.

@christopherfujino christopherfujino marked this pull request as ready for review September 11, 2024 23:52
@christopherfujino christopherfujino marked this pull request as draft September 11, 2024 23:52
shihaohong
shihaohong reviewed Sep 12, 2024
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packages/flutter_tools/lib/src/test/flutter_platform.dart Outdated
globals.printTrace('test $ourTestCount: VM Service uri is not available');
}
watcher?.handleStartedDevice(processVmServiceUri);
// These must be await-ed together, and if the first errors the second will never complete
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could you explain why if the first errors the second will never complete? setting eagerError: true implies this behavior, but it's not clear why this could happen

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Well, in real life, the most likely reason that the remoteChannelCompleter.future would error is because the app failed to start (for whatever reason). If the app fails to start, we're never gonna get a VM service URI, which is what testDevice.vmServiceUri is waiting for.

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at a high level, the trickiness here is because testDevice.vmServiceUri and testDevice.start() have dependencies between each other before they will both complete successfully, so if we fail someplace earlier we want to make sure we don't deadlock but handle it the error immediately (in particular, that the error bubble up from the right zone so the test runner knows there was a failure and it ends the test).

@christopherfujino christopherfujino force-pushed the catch-unable-to-start-app-exception branch from 910567b to c68aedc Compare September 13, 2024 00:24
@christopherfujino christopherfujino marked this pull request as ready for review September 13, 2024 00:37
@christopherfujino christopherfujino added the autosubmit Merge PR when tree becomes green via auto submit App label Sep 16, 2024
@auto-submit auto-submit bot merged commit b565379 into flutter:master Sep 16, 2024
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@christopherfujino christopherfujino deleted the catch-unable-to-start-app-exception branch September 16, 2024 18:06
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b565379 Catch unable to start app exception (flutter/flutter#154970)
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b565379 Catch unable to start app exception (flutter/flutter#154970)
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b565379 Catch unable to start app exception (flutter/flutter#154970)
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Roll Flutter from 5d83a98 to c4c9f47 (15 revisions) (#7656)
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flutter/flutter@5d83a98...c4c9f47

2024-09-17 [email protected] Roll Flutter Engine from a328f2362414 to 1376288f5c2a (1 revision) (flutter/flutter#155282)
2024-09-17 [email protected] Roll Flutter Engine from 04bc90bff86c to a328f2362414 (2 revisions) (flutter/flutter#155280)
2024-09-16 [email protected] Roll Flutter Engine from 6b698138c600 to 04bc90bff86c (3 revisions) (flutter/flutter#155277)
2024-09-16 [email protected] Added .keys to ColorSwatch (flutter/flutter#155262)
2024-09-16 [email protected] Roll Flutter Engine from 362b9bcdedce to 6b698138c600 (4 revisions) (flutter/flutter#155267)
2024-09-16 [email protected] Roll Packages from 330581f to df88c81 (7 revisions) (flutter/flutter#155261)
2024-09-16 [email protected] Extend 'flutter symbolize' to handle deferred loading units. (flutter/flutter#149315)
2024-09-16 [email protected] Catch unable to start app exception (flutter/flutter#154970)
2024-09-16 [email protected] Assert iOS framework artifact contains xcprivacy manifest (flutter/flutter#155187)
2024-09-16 [email protected] Roll Flutter Engine from 52dcc8a16d8b to 362b9bcdedce (1 revision) (flutter/flutter#155241)
2024-09-16 [email protected] Roll Flutter Engine from af4fe97fa13a to 52dcc8a16d8b (1 revision) (flutter/flutter#155238)
2024-09-16 [email protected] Roll Flutter Engine from 9aaea5a4bd50 to af4fe97fa13a (1 revision) (flutter/flutter#155235)
2024-09-16 [email protected] Roll Flutter Engine from fe22a199aca3 to 9aaea5a4bd50 (1 revision) (flutter/flutter#155232)
2024-09-15 [email protected] Roll Flutter Engine from f5ccef12c15c to fe22a199aca3 (1 revision) (flutter/flutter#155229)
2024-09-15 [email protected] Roll Flutter Engine from 622d4aec2e04 to f5ccef12c15c (1 revision) (flutter/flutter#155215)

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b565379 Catch unable to start app exception (flutter/flutter#154970)
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b565379 Catch unable to start app exception (flutter/flutter#154970)
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@bkonyi bkonyi bkonyi approved these changes

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Sometimes integration test fails to start on iOS simulator and flutter test takes 12 minutes to time out

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