In #411 we started to run tests in parallel again. To support that, we added a .yarnrc file in the root of our repository to pass --mutex network to all yarn invocations, because tests may run yarn commands concurrently with one another and yarn is not safe to run concurrently. However, when we run the integration tests, we actually copy them into a folder under `/tmp` and so yarn's logic to walk up the directory to tree to find a `.yarnrc` will not see this `.yarnrc` and we're back where we started. Have the testing package explicitly write this file, which should prevent this issue from happening in the future. |
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testing/integration | ||
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