| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.documentsui.services; |
| |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.provider.DocumentsContract; |
| import android.test.mock.MockContentResolver; |
| import android.util.Log; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| /** |
| * A test resolver that enables this test suite to listen for notifications that mark when copy |
| * operations are done. |
| */ |
| class TestContentResolver extends MockContentResolver { |
| |
| private static final String TAG = "TestContextResolver"; |
| |
| private CountDownLatch mReadySignal; |
| private CountDownLatch mNotificationSignal; |
| private Context mContext; |
| |
| public TestContentResolver(Context context) { |
| mContext = context; |
| mReadySignal = new CountDownLatch(1); |
| } |
| |
| /** |
| * Wait for the given number of files to be copied to destination. Times out after 1 sec. |
| */ |
| public void waitForChanges(int count) throws Exception { |
| // Wait for no more than 1 second by default. |
| waitForChanges(count, 1000); |
| } |
| |
| /** |
| * Wait for files to be copied to destination. |
| * |
| * @param count Number of files to wait for. |
| * @param timeOut Timeout in ms. TimeoutException will be thrown if this function times out. |
| */ |
| public void waitForChanges(int count, int timeOut) throws Exception { |
| mNotificationSignal = new CountDownLatch(count); |
| // Signal that the test is now waiting for files. |
| mReadySignal.countDown(); |
| if (!mNotificationSignal.await(timeOut, TimeUnit.MILLISECONDS)) { |
| throw new TimeoutException("Timed out waiting for file operations to complete."); |
| } |
| } |
| |
| @Override |
| public void notifyChange(Uri uri, ContentObserver observer, boolean syncToNetwork) { |
| // Wait until the test is ready to receive file notifications. |
| try { |
| mReadySignal.await(); |
| } catch (InterruptedException e) { |
| Log.d(TAG, "Interrupted while waiting for file copy readiness"); |
| Thread.currentThread().interrupt(); |
| } |
| if (DocumentsContract.isDocumentUri(mContext, uri)) { |
| Log.d(TAG, "Notification: " + uri); |
| // Watch for document URI change notifications - this signifies the end of a copy. |
| mNotificationSignal.countDown(); |
| } |
| } |
| } |