Example 1 - Unit tests article

UserNameStepViewModelTest.kt

 private val localRepository = mockk<LocalRepository>()

    @Test
    fun `user name - already exists a user name`() {
        every { localRepository.userName() }.returns("Moro")
        val viewModel = UserNameStepViewModel(localRepository)

        val result = viewModel.userName

        Truth.assertThat(result).isEqualTo("Moro")
    }
    ...