Is it possible to do Parameterised tests on Kotlin Multiplatform? The testing documentation is very ...

# multiplatform

[pablisco]

Is it possible to do Parameterised tests on Kotlin Multiplatform? The testing documentation is very limited and looking at the source I can’t find anything there

[russhwolf]

I'm not aware of any multiplatform parameterized test framework, but you DIY a bit by defining your tests in a base class and passing parameters as constructor arguments in subclasses.

class Case1 : ParameterizedTest(1)
class Case2 : ParameterizedTest(2)

open class ParameterizedTest(val parameter: Int) {
  @Test fun foo() { /* ... */ }
}

[pablisco]

Yeah, I wonder if it would work with sealed classes or enums. it’s a bit overkill, but may work for now 🙂

[pablisco]

My hope was also to not have to think about names for each case 😅

[russhwolf]

Yeah it's not perfect but it'll get the job done for the moment until a better solution comes along

[russhwolf]

I did something like this recently but my use case required the cases to be in different modules than the base class. Without that limitation a sealed class or enum makes a lot of sense.

[robstoll]

you could use Atrium in case your platforms are one of Android/JS/JVM:
https://github.com/robstoll/atrium#data-driven-testing

[pablisco]

That looks interesting, although it’s the same results as using a loop over a map of values really 😅

[robstoll]

almost, just error reporting will include all results

[pablisco]

true that 🙂