java.lang.AbstractMethodError When trying to capture lambdas

[marcpetitvecino]

Expected Behavior

Test passes with no errors

Current Behavior

Given the following code
val onSuccess = slot<(List<AEQuery>) -> Unit>() val onFailure = slot<(Failure) -> Unit>() val expectedResult: Either<Failure, List<AEQuery>> = expectedQueries.right() coEvery { getAEQueries(GetAEQueries.Params.forAEQueryRequest(queryRequest)).fold(capture(onFailure), capture(onSuccess)) } coAnswers { onSuccess.captured.invoke(expectedQueries) }

The coEvery function throws this error:
Receiver class kotlin.jvm.functions.Function1$Subclass0 does not define or inherit an implementation of the resolved method 'abstract java.lang.Object invoke(java.lang.Object)' of interface kotlin.jvm.functions.Function1. java.lang.AbstractMethodError: Receiver class kotlin.jvm.functions.Function1$Subclass0 does not define or inherit an implementation of the resolved method 'abstract java.lang.Object invoke(java.lang.Object)' of interface kotlin.jvm.functions.Function1.

• MockK version: 1.13.4
• OS: macOS Monterrey 12.6.3
• Kotlin version: 1.8.10
• JDK version: 11.0.15
• JUnit version: 4.13.1
• Type of test: Unit test

I've seen some similar issues related to Proguard or R8 but it seems it's not the case for me