I’m having trouble mocking

ActivityInfo.exported

with Mockito. Here’s the relevant part of my code:

private fun makeResolveInfo(appName: String, packageName: String, exported: Boolean = true) : ResolveInfo {
    val activityInfo = mock(ActivityInfo::class.java)
    `when`(activityInfo.exported).thenReturn(exported)
    // code omitted
}

The error is:

org.mockito.exceptions.misusing.MissingMethodInvocationException: 
when() requires an argument which has to be 'a method call on a mock'.
For example:
    when(mock.getArticles()).thenReturn(articles);

Also, this error might show up because:
1. you stub either of: final/private/equals()/hashCode() methods.
   Those methods *cannot* be stubbed/verified.
   Mocking methods declared on non-public parent classes is not supported.
2. inside when() you don't call method on mock but on some other object.

Here is the javadoc for the

exported

getter (which is in

ComponentInfo

, which

ActivityInfo

extends): https://developer.android.com/reference/android/content/pm/ComponentInfo#exported

Have you tried mockito-kotlin library? I've found it handles kotlin code infinitely better than straight up mockito. In addition, they use

whenever

instead of having to escape

when

Thanks, @mattinger! I’d been wondering just today if there was a way of avoiding escaping

when

.

escaping when isn't hard to do to be honest, you can just make a top level function for the syntax above, or an extension function to OngoingStubbing for the doXXX().when() type syntax

@mattinger I checked with my employer (Mozilla), and they’ve been switching to MockK, so I’ll probably do that. https://mockk.io/

that would be a huge undertaking for us. We're heavily vested in things like mockito and dagger mock. not even sure if dagger mock supports mockk

@mattinger May I ask where you work?

Comcast

@mattinger Thanks for keeping Internet access up.