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Fixed in Unity 2019.2



Found in


Issue ID




Exception is not handled properly in PlayTests when a custom Enumerator is used as a Coroutine and throws an Exception

Unity Test Runner



Priority: 2Necessary for shipping a final release


Severity: 1Crash, freeze, data loss, work stops

To reproduce:

1. Download attached project “" and open in Unity
2. Open Test Runner window
3. Press the "EditMode" button
4. Press "Run All" button

Expected results: Tests almost immediately fails
Actual results: ExceptionTestWithEnumeratorPasses test never finishes running

- This issue appears on both Windows and macOS
- The same problem happens when you Assert in a Unity Test in hasNext

Reproduced on Unity 2018.2.0a1, 2018.2.20f1, 2018.3.1f1 and 2019.1.0a13
Not reproduced on Unity 2018.1.9f2
Regression on Unity 2018.2.0a1

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