manhduy

Future<Response> get(String url) async {
    String wsseHeader = await generateAuthHeader();
    final response = await httpClient.get(url,
        headers: {
          HttpHeaders.contentTypeHeader: 'application/vnd.api+json',
          'Authorization': 'WSSE profile="UsernameToken"',
          'X-WSSE': wsseHeader
        },

    );

manhduy

class Calculator {

    fun sum(a: Int, b: Int) = a + b
}

manhduy

@HiltViewModel
class CalculatorViewModel @Inject constructor(
    private val calculator: Calculator
) : ViewModel() {

    ...
}

manhduy

@AndroidEntryPoint
class CalculatorActivity : AppCompatActivity() {

    private val viewModel: CalculatorViewModel by viewModels()
    
    ...
}

manhduy

@Module
@InstallIn(SingletonComponent::class)
class AppModule {

    @Singleton
    @Provides
    fun provideCalculator(): Calculator = Calculator()
}

manhduy

@Before
fun setUp() {
    calculatorService = mockk<CalculatorService>()
    viewModel = CalculatorViewModel(calculatorService)
}

@Test
fun test_SumReturnFromCalculator_LiveDataChanged() {
    //Given
    every { calculatorService.sum(a, b) } returns sum

manhduy

class TestRunner : AndroidJUnitRunner() {

    override fun newApplication(cl: ClassLoader?, name: String?, context: Context?): Application {
        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
    }
}

manhduy

android {
    defaultConfig {
        ...
        testInstrumentationRunner "com.duyha.hilttestingsample.TestRunner"
    }
}

manhduy

@HiltAndroidTest
@RunWith(AndroidJUnit4::class)
class CalculatorActivityTest {

    @BindValue
    @JvmField
    val viewModel = mockk<CalculatorViewModel>(relaxed = true)

    @get:Rule
    var hiltRule = HiltAndroidRule(this)

manhduy

@Test
fun test_DisplaySum_WhenSumLiveDataChange() {
    //Given
    val scenario = launchActivity<CalculatorActivity>()
    //When
    sum.postValue(10)
    //Then
    onView(withId(R.id.tvSum)).check(matches(withText("10")))
}