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[flutter_tools] deflake integration tests by running single isolate #62534

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jonahwilliams
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@jonahwilliams jonahwilliams commented Jul 30, 2020

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There are some occasional difficult to repro flakes on the tool integration tests. Try running only a single isolate to simplify the environment a bit.

@fluttergithubbot fluttergithubbot added the c: contributor-productivity Team-specific productivity, code health, technical debt. label Jul 30, 2020
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It looks like this pull request may not have tests. Please make sure to add tests before merging. If you need an exemption to this rule, contact Hixie on the #hackers channel in Chat.

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing.

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LGTM.

Is this a temporary debugging change, or if it works a fix? This may affect @godofredoc benchmarking test run time.

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Also, were we running integration tests in parallel? Or where the extra isolates just helpers?

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I'm not sure if it is a fix, I'll keep monitoring them.

We were running the tests in parallel, I could see whether this could cause issues specifically with the lockfile, or other resources that end up shared, like the tester binary

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Landing to help green the tree

@jonahwilliams jonahwilliams merged commit e762e7e into flutter:master Jul 30, 2020
@jonahwilliams jonahwilliams deleted the deflake_hot_restart_test branch July 30, 2020 18:06
Pragya007 pushed a commit to Pragya007/flutter that referenced this pull request Aug 11, 2020
…lutter#62534)

There are some occasional difficult to repro flakes on the tool integration tests. Try running only a single isolate to simplify the environment a bit.
mingwandroid pushed a commit to mingwandroid/flutter that referenced this pull request Sep 6, 2020
…lutter#62534)

There are some occasional difficult to repro flakes on the tool integration tests. Try running only a single isolate to simplify the environment a bit.
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4 participants