weird behavior with PiTest and Kotlin Coroutines

[Guillaume de Toulouse]

Hello

when I add this line to the pom of my project

<avoidCallsTo>kotlinx.coroutines</avoidCallsTo>

the result of the mutation coverage is:

>> Line Coverage: 94/96 (98%) [2021-07-26T09:27:45.248Z]
>> Generated 19 mutations Killed 17 (89%) [2021-07-26T09:27:45.248Z] 

>> Mutations with no coverage 0. Test strength 89%

>> Ran 11536 tests (607.16 tests per mutation)

when I don not have this line , the result is less mutation (!!!)

>> Line Coverage: 94/96 (98%) [2021-07-26T09:44:20.947Z] 

>> Generated 14 mutations Killed 14 (100%) [2021-07-26T09:44:20.947Z] 

>> Mutations with no coverage 0. Test strength 100% [2021-07-26T09:44:20.947Z] 

>> Ran 952 tests (68 tests per mutation)

I'd excepted less tests while avoiding calls to coroutines  ... 

the test framework I use is Kotest with FunSpec and BehaviorSpec  (which are run under Coroutines, as far as I've undestrood)

Any clue?

Best regards

[Henry Coles]

No clue at all.

Can you upload a minimal project that reproduces the issue?

Thanks

Henry

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