Catch an NPE thrown by the Kotlin type checker in the Mockito library.
A small library that provides helper functions to work with Mockito in Kotlin.
Mockito-Kotlin is available on Maven Central. For Gradle users, add the following to your build.gradle, replacing x.x.x with the latest version:
repositories { mavenCentral() } dependencies { testCompile "com.nhaarman:mockito-kotlin:x.x.x" }
A test using Mockito-Kotlin typically looks like the following:
@Test fun a(){ /* Given */ val mock = mock<MyClass> { on { getText() } doReturn "text" } val classUnderTest = ClassUnderTest(mock) /* When */ classUnderTest.doAction() /* Then */ verify(mock).doSomething(any()) }
For more info and samples, see the Wiki.