1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package androidx.appcompat.app; 18 19import static android.support.test.espresso.Espresso.onView; 20import static android.support.test.espresso.assertion.ViewAssertions.doesNotExist; 21import static android.support.test.espresso.assertion.ViewAssertions.matches; 22import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed; 23import static android.support.test.espresso.matcher.ViewMatchers.withId; 24 25import android.support.test.filters.SmallTest; 26import android.support.test.rule.ActivityTestRule; 27import android.support.test.runner.AndroidJUnit4; 28 29import androidx.appcompat.test.R; 30 31import org.junit.Rule; 32import org.junit.Test; 33import org.junit.runner.RunWith; 34 35@RunWith(AndroidJUnit4.class) 36public class FragmentContentIdTest { 37 @Rule 38 public final ActivityTestRule<FragmentContentIdActivity> mActivityTestRule = 39 new ActivityTestRule<>(FragmentContentIdActivity.class); 40 41 @SmallTest 42 @Test 43 public void testFragmentAddedToAndroidContentIdCanBeRemoved() throws Throwable { 44 mActivityTestRule.runOnUiThread(new Runnable() { 45 @Override 46 public void run() { 47 mActivityTestRule.getActivity().replaceWithFragmentB(); 48 } 49 }); 50 51 // Ensure that fragment_a has been removed from the view hierarchy 52 onView(withId(R.id.fragment_a)).check(doesNotExist()); 53 // And that fragment_b is displayed 54 onView(withId(R.id.fragment_b)).check(matches(isDisplayed())); 55 } 56} 57