blog/posts/20221223-MockitoAndNonNullTypesInKotlin

[utterances-bot]

Mockito and non-null types in Kotlin | Damir's Corner

https://www.damirscorner.com/blog/posts/20221223-MockitoAndNonNullTypesInKotlin.html

[robertoalvesme]

Thank you for sharing.

import org.mockito.Mockito
import org.mockito.Mockito.mock
import org.mockito.Mockito.`when`
import org.mockito.kotlin.any

@MockBean(UserRepository::class)
    fun userRepository(): UserRepository {
        return mock(UserRepository::class.java)
    }

 @Test
    fun createUser() {

        `when`(userRepository.createTest(any<User>())).thenAnswer{
            val user = it.arguments[0] as User
            user.id = 300L
            user
        }

And errors are all the same

You cannot use argument matchers outside of verification or stubbing.
Examples of correct usage of argument matchers:
    when(mock.get(anyInt())).thenReturn(null);
    doThrow(new RuntimeException()).when(mock).someVoidMethod(any());
    verify(mock).someMethod(contains("foo"))

What`s wrong? Thanks