mockito-scala | Mockito for Scala language | Unit Testing library

For a more detailed explanation read this. This trait wraps the API available on org.mockito.Mockito from the Java version, but it provides a more Scala-like syntax, mainly. The companion object also extends the trait to allow the usage of the API without mixing-in the trait in case that's desired. For a more detailed explanation read this. This trait exposes all the existent org.mockito.ArgumentMatchers but again it gives them a more Scala-like syntax, mainly. Again, the companion object also extends the trait to allow the usage of the API without mixing-in the trait in case that's desired.
Fixes the compiler errors that sometimes occurred when using overloaded methods that use varargs like doReturn
Eliminates the need to use classOf[T]
Eliminates parenthesis when possible to make the test code more readable
Adds spyLambda[T] to allow spying lambdas (they don't work with the standard spy as they are created as final classes by the compiler)
Supports mocking inline mixins like mock[MyClass with MyTrait]
Full support for by-name arguments (the full support was added in 1.4.0, before it was partial).
Adds support for working with default arguments
eq was renamed to eqTo to avoid clashing with the Scala eq operator for identity equality, eq also supports value classes out of the box and relies on org.scalactic.Equality[T] (see Scalactic integration)
any[T] works even when the type can't be inferred, removing the need of using the likes of anyString, anyInt, etc (see Notes)
any[T] also supports value classes (in this case you MUST provide the type parameter)
isNull and isNotNull are deprecated as using nulls in Scala is clear code smell
Adds support for value classes via anyVal[T] and eqToVal[T]() NOTE: both had been deprecated (use any[T] or eqTo[T] instead)
Adds function0 to easily match for a function that returns a given value
Adds argMatching that takes a partial function to match, i.e. argMatching({ case Baz(_, "pepe") => })