makovkastar

import android.content.Context
import android.os.SystemClock
import android.support.v4.widget.SwipeRefreshLayout
import android.util.AttributeSet

/**
 * ContentLoadingSwipeRefreshLayout implements a SwipeRefreshLayout that waits a minimum time to
 * dismiss the refreshing indicator before showing. Once visible, the refreshing indicator will be 
 * visible for a minimum amount of time to avoid "flashes" in the UI when an event could take
 * a largely variable time to complete (from none, to a user perceivable amount).

makovkastar

class TaskDiffCallback : DiffUtil.ItemCallback<Task>() {
    override fun areItemsTheSame(oldItem: Task, newItem: Task): Boolean {
        return oldItem?.id == newItem?.id
    }

    override fun areContentsTheSame(oldItem: Task, newItem: Task): Boolean {
        return oldItem == newItem
    }
}

makovkastar

class SingleFragmentActivity : AppCompatActivity() {

    fun setFragment(fragment: Fragment) {
        supportFragmentManager.beginTransaction()
                .add(android.R.id.content, fragment)
                .commit()
    }
}

makovkastar

@Test
fun navigateToForgotPasswordPage_StartsBrowser() {
    intending(not(isInternal())).respondWith(
           Instrumentation.ActivityResult(Activity.RESULT_OK, null))

    navigateToForgotPasswordPage.call()

    intended(allOf(hasAction(Intent.ACTION_VIEW),
            hasData(Urls.FORGOT_PASSWORD)))
}

makovkastar

@Test
fun clickForgotPasswordButton_CallsViewModel() {
    onView(withId(R.id.label_forgot_password)).perform(click())
    
    verify(viewModel).onForgotPasswordLabelClicked()
    verifyNoMoreInteractions(viewModel)
}

@Test
fun clickSignInButton_CallsViewModel() {

makovkastar

@Test
fun isSignInButtonEnabledBinding() {
    isSignInButtonEnabled.set(true)
    onView(withId(R.id.button_sign_in)).check(matches(isEnabled()))
}

@Test
fun isProgressBarVisibleBinding() {
    isProgressBarVisible.set(true)
    onView(withId(R.id.progress_overlay)).check(matches(isDisplayed()))

makovkastar

@Test
fun emailAndPasswordAreEmptyInitially() {
     onView(withId(R.id.edit_text_email)).check(matches(withText("")))
     onView(withId(R.id.edit_text_password)).check(matches(withText("")))
}

makovkastar

@MediumTest
@RunWith(AndroidJUnit4::class)
class LoginFragmentTest {

    @Rule
    @JvmField
    val activityRule = IntentsTestRule(SingleFragmentActivity::class.java)

    @Rule
    @JvmField

makovkastar

android {
    ...
    defaultConfig {
        ...
        testInstrumentationRunner "com.melnykov.mvvmtesting.testutil.AndroidTestRunner"
    }
}

makovkastar

class AndroidTestRunner : AndroidJUnitRunner() {

    override fun newApplication(cl: ClassLoader, className: String, context: Context): Application {
        // The DexOpener library allows to make Kotlin classes, properties and functions 
        // open during tests in order to mock then with Mockito. 
        DexOpener.install(this)
        return super.newApplication(cl, AndroidTestApplication::class.java.name, context)
    }
}