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 LoginFragment : Fragment(), Injectable {

    @Inject
    @VisibleForTesting
    lateinit var viewModelFactory: ViewModelProvider.Factory

    private lateinit var dataBinding: LoginFragmentBinding

    private lateinit var viewModel: LoginViewModel

makovkastar

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">

    <!--suppress AndroidUnknownAttribute -->
    <data class="LoginFragmentBinding">
        <variable
            name="viewModel"
            type="com.melnykov.mvvmtesting.ui.login.LoginViewModel" />

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

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

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

    @Rule
    @JvmField

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

class LoginViewModel @Inject constructor(private val loginGateway: LoginGateway) : ViewModel() {

    val emailField = ObservableField<String>()
    val passwordField = ObservableField<String>()

    val isSignInButtonEnabled = ObservableBoolean()

    val isProgressBarVisible = ObservableBoolean()

    val navigateToForgotPasswordPage = SingleLiveEvent<Unit>()

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)))
}