How to use isDescendantOfA method of android.support.test.espresso.matcher.ViewMatchers class

Best Appium-espresso-driver code snippet using android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA

exampleTest.kt

Source:exampleTest.kt

...69        val scenario = launchFragmentInContainer<example>()70        onView(allOf(withId(R.id.testo_frammento), withText("Hello Fragment!!"))).check(matches(isDisplayed()))71        //verifica che la TextView con un certo ID ha come contenuto un certo testo72        onView(allOf(isAssignableFrom(TextView::class.java), withId(R.id.testo_frammento))).check(matches(withText("Hello Fragment!!")))73        onView(allOf(isAssignableFrom(TextView::class.java), withId(R.id.testo_frammento), isDescendantOfA(withClassName(`is`("android.widget.FrameLayout"))))).check(matches(withText("Hello Fragment!!")))74        //riprova: il seguente fallisce perchÃ¨ la classe non Ã¨ corretta75        //onView(allOf(isAssignableFrom(Button::class.java), withId(R.id.testo_frammento), isDescendantOfA(withClassName(`is`("android.widget.FrameLayout"))))).check(matches(withText("Hello Fragment!!")))76        //oppure il genitore non Ã¨ del tipo giusto77        //onView(allOf(isAssignableFrom(TextView::class.java), withId(R.id.testo_frammento), isDescendantOfA(withClassName(`is`("android.widget.ConstraintLayout"))))).check(matches(withText("Hello Fragment!!")))78    }79    //verifica animazioni fragment80}

ViewMatchersTest.kt

Source:ViewMatchersTest.kt

...22import android.support.test.espresso.matcher.ViewMatchers.hasImeAction23import android.support.test.espresso.matcher.ViewMatchers.hasSibling24import android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom25import android.support.test.espresso.matcher.ViewMatchers.isChecked26import android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA27import android.support.test.espresso.matcher.ViewMatchers.isDisplayed28import android.support.test.espresso.matcher.ViewMatchers.isEnabled29import android.support.test.espresso.matcher.ViewMatchers.isFocusable30import android.support.test.espresso.matcher.ViewMatchers.isSelected31import android.support.test.espresso.matcher.ViewMatchers.supportsInputMethods32import android.support.test.espresso.matcher.ViewMatchers.withChild33import android.support.test.espresso.matcher.ViewMatchers.withClassName34import android.support.test.espresso.matcher.ViewMatchers.withContentDescription35import android.support.test.espresso.matcher.ViewMatchers.withHint36import android.support.test.espresso.matcher.ViewMatchers.withId37import android.support.test.espresso.matcher.ViewMatchers.withParent38import android.support.test.espresso.matcher.ViewMatchers.withText39import org.hamcrest.CoreMatchers.allOf40import org.hamcrest.CoreMatchers.`is`41import org.hamcrest.CoreMatchers.not42/**43 * Lists all ViewMatchers. ViewMatchers here are without functional load.44 * This is done for demonstration purposes.45 */46@RunWith(AndroidJUnit4::class)47class ViewMatchersTest {48    @Test49    fun userProperties() {50        onView(withId(R.id.fab_add_task))51        onView(withText("All TO-DOs"))52        onView(withContentDescription(R.string.menu_filter))53        onView(hasContentDescription())54        onView(withHint(R.string.name_hint))55    }56    @Test57    fun uiProperties() {58        onView(isDisplayed())59        onView(isEnabled())60        onView(isChecked())61        onView(isSelected())62    }63    @Test64    fun objectMatcher() {65        onView(not<View>(isChecked()))66        onView(allOf<View>(withText("item 1"), isChecked()))67    }68    @Test69    fun hierarchy() {70        onView(withParent(withId(R.id.todo_item)))71        onView(withChild(withText("item 2")))72        onView(isDescendantOfA(withId(R.id.todo_item)))73        onView(hasDescendant(isChecked()))74                .check(matches(isDisplayed()))75                .check(matches(isFocusable()))76        onView(hasSibling(withContentDescription(R.string.menu_filter)))77    }78    @Test79    fun input() {80        onView(supportsInputMethods())81        onView(hasImeAction(EditorInfo.IME_ACTION_SEND))82    }83    @Test84    fun classMatchers() {85        onView(isAssignableFrom(CheckBox::class.java))86        onView(withClassName(`is`(FloatingActionButton::class.java.canonicalName)))...

RoomsScreenTest.kt

Source:RoomsScreenTest.kt

...20import android.support.test.espresso.contrib.RecyclerViewActions.scrollTo21import android.support.test.espresso.core.deps.guava.base.Preconditions.checkArgument22import android.support.test.espresso.matcher.ViewMatchers.hasDescendant23import android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom24import android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA25import android.support.test.espresso.matcher.ViewMatchers.isDisplayed26import android.support.test.espresso.matcher.ViewMatchers.withId27import android.support.test.espresso.matcher.ViewMatchers.withText28import org.hamcrest.Matchers.allOf29/**30 * Tests for the rooms screen, the main screen which contains a grid of all rooms.31 */32@RunWith(AndroidJUnit4::class)33@LargeTest34class RoomsScreenTest {35    /**36     * [ActivityTestRule] is a JUnit [@Rule][Rule] to launch your activity under test.37     *38     *39     *40     * Rules are interceptors which are executed for each test method and are important building41     * blocks of Junit tests.42     */43    @Rule44    var mRoomsActivityTestRule = ActivityTestRule(RoomsActivity::class.java)45    /**46     * A custom [Matcher] which matches an item in a [RecyclerView] by its text.47     *48     *49     *50     * View constraints:51     *52     *  * View must be a child of a [RecyclerView]53     *54     *55     * @param itemText the text to match56     * @return Matcher that matches text in the given view57     */58    private fun withItemText(itemText: String): Matcher<View> {59        checkArgument(!TextUtils.isEmpty(itemText), "itemText cannot be null or empty")60        return object : TypeSafeMatcher<View>() {61            public override fun matchesSafely(item: View): Boolean {62                return allOf(63                        isDescendantOfA(isAssignableFrom(RecyclerView::class.java)),64                        withText(itemText)).matches(item)65            }66            override fun describeTo(description: Description) {67                description.appendText("is isDescendantOfA RV with text " + itemText)68            }69        }70    }71    @Test72    @Throws(Exception::class)73    fun clickAddRoomButton_opensAddRoomUi() {74        // Click on the add room button75        onView(withId(R.id.fab_add_rooms)).perform(click())76        // Check if the add room screen is displayed77        onView(withId(R.id.add_room_title)).check(matches(isDisplayed()))78    }79    @Test80    @Throws(Exception::class)81    fun addRoomToRoomsList() {...

SubredditsScreenTest.kt

Source:SubredditsScreenTest.kt

...17import android.support.test.espresso.contrib.RecyclerViewActions.scrollTo18import android.support.test.espresso.core.deps.guava.base.Preconditions.checkArgument19import android.support.test.espresso.matcher.ViewMatchers.hasDescendant20import android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom21import android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA22import android.support.test.espresso.matcher.ViewMatchers.isDisplayed23import android.support.test.espresso.matcher.ViewMatchers.withId24import android.support.test.espresso.matcher.ViewMatchers.withText25import android.support.test.filters.LargeTest26import org.hamcrest.Matchers.allOf27/**28 * Tests for the subreddits screen, screen that containt all of your subreddits29 */30@RunWith(AndroidJUnit4::class)31@LargeTest32class SubredditsScreenTest {33    /**34     * A custom [Matcher] which matches an item in a [RecyclerView] by its text.35     *36     *37     *38     *39     * View constraints:40     *41     *  * View must be a child of a [RecyclerView]42     *43     * @param itemText the text to match44     * *45     * @return Matcher that matches text in the given view46     */47    private fun withItemText(itemText: String): Matcher<View> {48        checkArgument(!TextUtils.isEmpty(itemText), "itemText cannot be null or empty")49        return object : TypeSafeMatcher<View>() {50            public override fun matchesSafely(item: View): Boolean {51                return allOf(52                        isDescendantOfA(isAssignableFrom(RecyclerView::class.java)),53                        withText(itemText)).matches(item)54            }55            override fun describeTo(description: Description) {56                description.appendText("is isDescendantOfA RV with text " + itemText)57            }58        }59    }60    /**61     * [ActivityTestRule] is a JUnit [@Rule][Rule] to launch your activity under test.62     *63     *64     *65     *66     * Rules are interceptors which are executed for each test method and are important building67     * blocks of Junit tests.68     */69    @Rule70    var mSubredditsActivityTestRule: ActivityTestRule<SubredditsActivity> = ActivityTestRule(SubredditsActivity::class.java)...

NestedScrollViewViewAction.kt

Source:NestedScrollViewViewAction.kt

...5import android.support.test.espresso.ViewAction6import android.support.test.espresso.action.ViewActions7import android.support.test.espresso.matcher.ViewMatchers8import android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom9import android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA10import android.support.test.espresso.matcher.ViewMatchers.isDisplayingAtLeast11import android.support.test.espresso.matcher.ViewMatchers.withEffectiveVisibility12import android.support.test.espresso.util.HumanReadables13import android.support.v4.widget.NestedScrollView14import android.view.View15import org.hamcrest.Matchers.allOf16import org.hamcrest.Matchers.anyOf17import timber.log.Timber18/** [ViewAction] that scrolls the [NestedScrollView] to any desired view */19class NestedScrollViewViewAction : ViewAction {20  companion object {21    private const val DISPLAY_PERCENTAGE = 9022  23    /**24     * Factory method that performs all assertions before the [ViewAction] and then returns it25     *26     * @return the [NestedScrollViewViewAction] instance27     */28    @JvmStatic29    fun scrollTo() = ViewActions.actionWithAssertions(NestedScrollViewViewAction())30  }31  override fun getConstraints() = allOf<View>(32      withEffectiveVisibility(ViewMatchers.Visibility.VISIBLE),33      isDescendantOfA(anyOf<View>(34          isAssignableFrom(NestedScrollView::class.java), isAssignableFrom(NestedScrollView::class.java))35      )36  )37  override fun perform(uiController: UiController, view: View) {38    if (isDisplayingAtLeast(DISPLAY_PERCENTAGE).matches(view)) {39      Timber.i("View is already displayed. Returning.")40      return41    }42    val rect = Rect()43    view.getDrawingRect(rect)44    if (!view.requestRectangleOnScreen(rect, true)) {45      Timber.w("Scrolling to view was requested, but none of the parents scrolled.")46    }47    uiController.loopMainThreadUntilIdle()...

MapsActivityTest.kt

Source:MapsActivityTest.kt

...32        IdlingRegistry.getInstance().register(idlingResource)33        onView(allOf(withId(R.id.pubLogo), isDisplayed())).perform(click())34        onView(allOf(withId(R.id.pubDescription), isDisplayed()))35        onView(withId(R.id.viewPager)).perform(swipeDown())36        onView(allOf(withId(R.id.pubDescription), isDescendantOfA(nthChildOf(withId(R.id.viewPager), 0)))).check(matches(not(isDisplayed())))37        onView(allOf(withId(R.id.pubLogo), isDisplayed())).perform(click())38        onView(allOf(withId(R.id.pubDescription), isDisplayed()))39        Espresso.pressBack()40        onView(allOf(withId(R.id.pubDescription), isDescendantOfA(nthChildOf(withId(R.id.viewPager), 0)))).check(matches(not(isDisplayed())))41        Espresso.pressBack()42        onView(allOf(withId(R.id.pubLogo), isDescendantOfA(nthChildOf(withId(R.id.viewPager), 0)))).check(matches(not(isDisplayed())))43    }44}...

MapsActivityTest2.kt

Source:MapsActivityTest2.kt

1package ru.xmn.russiancraftbeer.screens.map.ui2import android.support.test.espresso.Espresso3import android.support.test.espresso.Espresso.onView4import android.support.test.espresso.IdlingRegistry5import android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA6import android.support.test.espresso.matcher.ViewMatchers.withId7import android.support.test.filters.LargeTest8import android.support.test.rule.ActivityTestRule9import android.support.test.runner.AndroidJUnit410import com.zhuinden.espressohelper.checkIsDisplayed11import com.zhuinden.espressohelper.checkIsNotDisplayed12import com.zhuinden.espressohelper.performClick13import com.zhuinden.espressohelper.performSwipeDown14import org.hamcrest.CoreMatchers.allOf15import org.junit.Rule16import org.junit.Test17import org.junit.runner.RunWith18import ru.xmn.russiancraftbeer.R.id.*19@RunWith(AndroidJUnit4::class)20@LargeTest21class MapsActivityTest2 {22    @Rule23    @JvmField24    val mActivityRule = ActivityTestRule<MapsActivity>(25            MapsActivity::class.java)26    @Test27    fun pager_is_visible() {28        val idlingResource = ElapsedTimeIdlingResource(6000)29        IdlingRegistry.getInstance().register(idlingResource)30        pubLogo.descendantOf(viewPager).performClick()31        pubLogo.descendantOf(viewPager).checkIsDisplayed()32        viewPager.performSwipeDown()33        pubDescription.descendantOf(viewPager).checkIsNotDisplayed()34        pubLogo.descendantOf(viewPager).performClick()35        Espresso.pressBack()36        pubDescription.descendantOf(viewPager).checkIsNotDisplayed()37        Espresso.pressBack()38        pubLogo.descendantOf(viewPager).checkIsNotDisplayed()39    }40}41fun Int.descendantOf(parentId: Int, position: Int = 0) =42        onView(descendantOfMatcher(parentId, position))!!43fun Int.descendantOfMatcher(parentId: Int, position: Int = 0) =44        allOf(withId(this), isDescendantOfA(nthChildOf(withId(parentId), position)))!!...

SnackbarElement.kt

Source:SnackbarElement.kt

...27) {28    val message = ViewElement(29        Matchers.allOf(30            ViewMatchers.withId(R.id.snackbar_text),31            ViewMatchers.isDescendantOfA(matcher)32        )33    )34    val button = ViewElement(35        Matchers.allOf(36            ViewMatchers.withId(R.id.snackbar_action),37            ViewMatchers.isDescendantOfA(matcher)38        )39    )40    fun swipeOut() = EspressoActions.swipe(RIGHT_TO_LEFT)41}...

isDescendantOfA

Using AI Code Generation

1import static android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA;2import static android.support.test.espresso.matcher.ViewMatchers.withId;3import static android.support.test.espresso.matcher.ViewMatchers.withText;4import static android.support.test.espresso.matcher.ViewMatchers.withId;5import static org.hamcrest.Matchers.allOf;6import static android.support.test.espresso.matcher.ViewMatchers.withId;7import static android.support.test.espresso.matcher.ViewMatchers.withText;8import static android.support.test.espresso.matcher.ViewMatchers.withId;9import static android.support.test.espresso.matcher.ViewMatchers.withText;10import static android.support.test.espresso.matcher.ViewMatchers.withId;11import static android.support.test.espresso.matcher.ViewMatchers.withText;12import static android.support.test.espresso.matcher.ViewMatchers.withId;13import static android.support.test.espresso.matcher.ViewMatchers.withText;14import static android.support.test.espresso.matcher.ViewMatchers.withId;15import static android.support.test.espresso.matcher.ViewMatchers.withText;16import static android.support.test.espresso.matcher.ViewMatchers.withId;17import static android.support.test.espresso.matcher.ViewMatchers.withText;18import static android.support.test.espresso.matcher.ViewMatchers.with

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