Bitrise Xcode Test for iOS failes 4/5 times with "Asynchronous wait failed"

Bitrise Build Issue Report template

Description of the issue

Xcode tests seems to failing with “Asynchronous wait failed” error most of the times and we noticed only a specific test is failing which uses a background queue and somehow never fulfills the expectation.

Everything works well locally (both with Bitrise CLI and through Xcode command line). The only reason I could think of is using multiple DispatchQeue in our XCTest is causing Bitrise to somehow not execute them properly.


Where did the issue happen?

Stack: Xcode 12.1

Which build Step causes the issue and which version of the step?

Xcode Test for iOS Version: 2.4.6


  • Does a “Rebuild” help? (You can trigger a rebuild from the Build’s page, by clicking the “Rebuild” button in the top right corner of a finished build) : Sometimes (1 in 5 times, it works)
  • Does the issue happen sporadically, or every time? : 4/5 times
  • Does upgrading the build Step to the latest version help? : NO

Local reproduction

Both the below setup worked and the XCTests passed

Setup 1: Bitrise CLI with using bitrise.yml configured for the project
iOS Simulator used: iPhone 8 Plus (Reset Content and Settings done)

Setup 2: Xcode command lane test execution
iOS Simulator used: iPhone 8 Plus (Reset Content and Settings done)

Build log

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