I'm using Mockito to mock an object with a method which returns an un-parametrized ArrayList, and I cannot figure out how to get this to work
Method signature to mock
public java.util.ArrayList getX()
Test code
var mockee = mock(classOf[Mockee])
when(mockee.getX).thenReturn(Lists.newArrayList(x): ArrayList[_])
This actually compiles fine in IntelliJ, but at runtime throws:
[error] ....scala:89: overloaded method value thenReturn with alternatives:
[error] (java.util.ArrayList[?0],<repeated...>[java.util.ArrayList[?0]])org.mockito.stubbing.OngoingStubbing[java.util.ArrayList[?0]] <and>
[error] (java.util.ArrayList[?0])org.mockito.stubbing.OngoingStubbing[java.util.ArrayList[?0]]
[error] cannot be applied to (java.util.ArrayList[_$1])
[error] when(mockee.getX).thenReturn(Lists.newArrayList(x): ArrayList[_])
The following works for me:
val mockee = mock(classOf[Mockee])
when[ArrayList[_]](mockee.getX).thenReturn(Lists.newArrayList)
assuming the "Lists" class is from the Google collections (now Guava).
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