1 /* 2 * Copyright (C) 2017 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 17 package androidx.contentpager.content; 18 19 import android.database.ContentObserver; 20 import android.net.Uri; 21 import android.os.Handler; 22 23 import androidx.annotation.VisibleForTesting; 24 25 import java.util.concurrent.CountDownLatch; 26 27 final class TestContentObserver extends ContentObserver { 28 29 @VisibleForTesting 30 public CountDownLatch mNotifiedLatch; 31 32 TestContentObserver(Handler handler) { 33 super(handler); 34 } 35 36 void expectNotifications(int count) { 37 mNotifiedLatch = new CountDownLatch(count); 38 } 39 40 @Override 41 public void onChange(boolean selfChange) { 42 mNotifiedLatch.countDown(); 43 } 44 45 @Override 46 public void onChange(boolean selfChange, Uri uri) { 47 mNotifiedLatch.countDown(); 48 } 49 } 50
