एस्प्रेसो रेसिपी

onView(allOf(withText("7"), hasSibling(withText("item: 0"))))
    .perform(click())

onView(allOf(withText("7"), hasSibling(withText("item: 0"))))
    .perform(click());

fun testClickActionBarItem() {
    // We make sure the contextual action bar is hidden.
    onView(withId(R.id.hide_contextual_action_bar))
        .perform(click())

    // Click on the icon - we can find it by the r.Id.
    onView(withId(R.id.action_save))
        .perform(click())

    // Verify that we have really clicked on the icon
    // by checking the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("Save")))
}

public void testClickActionBarItem() {
    // We make sure the contextual action bar is hidden.
    onView(withId(R.id.hide_contextual_action_bar))
        .perform(click());

    // Click on the icon - we can find it by the r.Id.
    onView(withId(R.id.action_save))
        .perform(click());

    // Verify that we have really clicked on the icon
    // by checking the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("Save")));
}

fun testClickActionModeItem() {
    // Make sure we show the contextual action bar.
    onView(withId(R.id.show_contextual_action_bar))
        .perform(click())

    // Click on the icon.
    onView((withId(R.id.action_lock)))
        .perform(click())

    // Verify that we have really clicked on the icon
    // by checking the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("Lock")))
}

public void testClickActionModeItem() {
    // Make sure we show the contextual action bar.
    onView(withId(R.id.show_contextual_action_bar))
        .perform(click());

    // Click on the icon.
    onView((withId(R.id.action_lock)))
        .perform(click());

    // Verify that we have really clicked on the icon
    // by checking the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("Lock")));
}

fun testActionBarOverflow() {
    // Make sure we hide the contextual action bar.
    onView(withId(R.id.hide_contextual_action_bar))
        .perform(click())

    // Open the options menu OR open the overflow menu, depending on whether
    // the device has a hardware or software overflow menu button.
    openActionBarOverflowOrOptionsMenu(
            ApplicationProvider.getApplicationContext<Context>())

    // Click the item.
    onView(withText("World"))
        .perform(click())

    // Verify that we have really clicked on the icon by checking
    // the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("World")))
}

public void testActionBarOverflow() {
    // Make sure we hide the contextual action bar.
    onView(withId(R.id.hide_contextual_action_bar))
        .perform(click());

    // Open the options menu OR open the overflow menu, depending on whether
    // the device has a hardware or software overflow menu button.
    openActionBarOverflowOrOptionsMenu(
            ApplicationProvider.getApplicationContext());

    // Click the item.
    onView(withText("World"))
        .perform(click());

    // Verify that we have really clicked on the icon by checking
    // the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("World")));
}

fun testActionModeOverflow() {
    // Show the contextual action bar.
    onView(withId(R.id.show_contextual_action_bar))
        .perform(click())

    // Open the overflow menu from contextual action mode.
    openContextualActionModeOverflowMenu()

    // Click on the item.
    onView(withText("Key"))
        .perform(click())

    // Verify that we have really clicked on the icon by
    // checking the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("Key")))
    }
}

public void testActionModeOverflow() {
    // Show the contextual action bar.
    onView(withId(R.id.show_contextual_action_bar))
        .perform(click());

    // Open the overflow menu from contextual action mode.
    openContextualActionModeOverflowMenu();

    // Click on the item.
    onView(withText("Key"))
        .perform(click());

    // Verify that we have really clicked on the icon by
    // checking the TextView content.
    onView(withId(R.id.text_action_bar_result))
        .check(matches(withText("Key")));
    }
}

import androidx.test.espresso.Espresso.onView
import androidx.test.espresso.assertion.ViewAssertions.matches
import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
import androidx.test.espresso.matcher.ViewMatchers.withId
import org.hamcrest.Matchers.not

onView(withId(R.id.bottom_left))
    .check(matches(not(isDisplayed())))

import static androidx.test.espresso.Espresso.onView;
import static androidx.test.espresso.assertion.ViewAssertions.matches;
import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static org.hamcrest.Matchers.not;

onView(withId(R.id.bottom_left))
    .check(matches(not(isDisplayed())));

import androidx.test.espresso.Espresso.onView
import androidx.test.espresso.assertion.ViewAssertions.doesNotExist
import androidx.test.espresso.matcher.ViewMatchers.withId

onView(withId(R.id.bottom_left))
    .check(doesNotExist())

import static androidx.test.espresso.Espresso.onView;
import static androidx.test.espresso.assertion.ViewAssertions.doesNotExist;
import static androidx.test.espresso.matcher.ViewMatchers.withId;

onView(withId(R.id.bottom_left))
    .check(doesNotExist());

private fun withAdaptedData(dataMatcher: Matcher<Any>): Matcher<View> {
    return object : TypeSafeMatcher<View>() {

        override fun describeTo(description: Description) {
            description.appendText("with class name: ")
            dataMatcher.describeTo(description)
        }

        public override fun matchesSafely(view: View) : Boolean {
            if (view !is AdapterView<*>) {
                return false
            }

            val adapter = view.adapter
            for (i in 0 until adapter.count) {
                if (dataMatcher.matches(adapter.getItem(i))) {
                    return true
                }
            }

            return false
        }
    }
}

private static Matcher<View> withAdaptedData(final Matcher<Object> dataMatcher) {
    return new TypeSafeMatcher<View>() {

        @Override
        public void describeTo(Description description) {
            description.appendText("with class name: ");
            dataMatcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            if (!(view instanceof AdapterView)) {
                return false;
            }

            @SuppressWarnings("rawtypes")
            Adapter adapter = ((AdapterView) view).getAdapter();
            for (int i = 0; i < adapter.getCount(); i++) {
                if (dataMatcher.matches(adapter.getItem(i))) {
                    return true;
                }
            }

            return false;
        }
    };
}

fun testDataItemNotInAdapter() {
    onView(withId(R.id.list))
          .check(matches(not(withAdaptedData(withItemContent("item: 168")))))
    }
}

@SuppressWarnings("unchecked")
public void testDataItemNotInAdapter() {
    onView(withId(R.id.list))
          .check(matches(not(withAdaptedData(withItemContent("item: 168")))));
    }
}

private class CustomFailureHandler(targetContext: Context) : FailureHandler {
    private val delegate: FailureHandler

    init {
        delegate = DefaultFailureHandler(targetContext)
    }

    override fun handle(error: Throwable, viewMatcher: Matcher<View>) {
        try {
            delegate.handle(error, viewMatcher)
        } catch (e: NoMatchingViewException) {
            throw MySpecialException(e)
        }

    }
}

private static class CustomFailureHandler implements FailureHandler {
    private final FailureHandler delegate;

    public CustomFailureHandler(Context targetContext) {
        delegate = new DefaultFailureHandler(targetContext);
    }

    @Override
    public void handle(Throwable error, Matcher<View> viewMatcher) {
        try {
            delegate.handle(error, viewMatcher);
        } catch (NoMatchingViewException e) {
            throw new MySpecialException(e);
        }
    }
}

@Throws(Exception::class)
override fun setUp() {
    super.setUp()
    getActivity()
    setFailureHandler(CustomFailureHandler(
            ApplicationProvider.getApplicationContext<Context>()))
}

@Override
public void setUp() throws Exception {
    super.setUp();
    getActivity();
    setFailureHandler(new CustomFailureHandler(
            ApplicationProvider.getApplicationContext()));
}

onView(withText("South China Sea"))
    .inRoot(withDecorView(not(`is`(getActivity().getWindow().getDecorView()))))
    .perform(click())

onView(withText("South China Sea"))
    .inRoot(withDecorView(not(is(getActivity().getWindow().getDecorView()))))
    .perform(click());

const val FOOTER = "FOOTER"
...
val footerView = layoutInflater.inflate(R.layout.list_item, listView, false)
footerView.findViewById<TextView>(R.id.item_content).text = "count:"
footerView.findViewById<TextView>(R.id.item_size).text
        = data.size.toString
listView.addFooterView(footerView, FOOTER, true)

public static final String FOOTER = "FOOTER";
...
View footerView = layoutInflater.inflate(R.layout.list_item, listView, false);
footerView.findViewById<TextView>(R.id.item_content).setText("count:");
footerView.findViewById<TextView>(R.id.item_size).setText(String.valueOf(data.size()));
listView.addFooterView(footerView, FOOTER, true);

import org.hamcrest.Matchers.allOf
import org.hamcrest.Matchers.instanceOf
import org.hamcrest.Matchers.`is`

fun isFooter(): Matcher<Any> {
    return allOf(`is`(instanceOf(String::class.java)),
            `is`(LongListActivity.FOOTER))
}

import static org.hamcrest.Matchers.allOf;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;

@SuppressWarnings("unchecked")
public static Matcher<Object> isFooter() {
    return allOf(is(instanceOf(String.class)), is(LongListActivity.FOOTER));
}

import androidx.test.espresso.Espresso.onData
import androidx.test.espresso.action.ViewActions.click
import androidx.test.espresso.sample.LongListMatchers.isFooter

fun testClickFooter() {
    onData(isFooter())
        .perform(click())

    // ...
}

import static androidx.test.espresso.Espresso.onData;
import static androidx.test.espresso.action.ViewActions.click;
import static androidx.test.espresso.sample.LongListMatchers.isFooter;

public void testClickFooter() {
    onData(isFooter())
        .perform(click());

    // ...
}