Steve McKay | bbeba52 | 2016-01-13 17:17:39 -0800 | [diff] [blame^] | 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 | |
| 17 | package com.android.documentsui.services; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.database.ContentObserver; |
| 21 | import android.net.Uri; |
| 22 | import android.provider.DocumentsContract; |
| 23 | import android.test.mock.MockContentResolver; |
| 24 | import android.util.Log; |
| 25 | |
| 26 | import java.util.concurrent.CountDownLatch; |
| 27 | import java.util.concurrent.TimeUnit; |
| 28 | import java.util.concurrent.TimeoutException; |
| 29 | |
| 30 | /** |
| 31 | * A test resolver that enables this test suite to listen for notifications that mark when copy |
| 32 | * operations are done. |
| 33 | */ |
| 34 | class TestContentResolver extends MockContentResolver { |
| 35 | |
| 36 | private static final String TAG = "TestContextResolver"; |
| 37 | |
| 38 | private CountDownLatch mReadySignal; |
| 39 | private CountDownLatch mNotificationSignal; |
| 40 | private Context mContext; |
| 41 | |
| 42 | public TestContentResolver(Context context) { |
| 43 | mContext = context; |
| 44 | mReadySignal = new CountDownLatch(1); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Wait for the given number of files to be copied to destination. Times out after 1 sec. |
| 49 | */ |
| 50 | public void waitForChanges(int count) throws Exception { |
| 51 | // Wait for no more than 1 second by default. |
| 52 | waitForChanges(count, 1000); |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Wait for files to be copied to destination. |
| 57 | * |
| 58 | * @param count Number of files to wait for. |
| 59 | * @param timeOut Timeout in ms. TimeoutException will be thrown if this function times out. |
| 60 | */ |
| 61 | public void waitForChanges(int count, int timeOut) throws Exception { |
| 62 | mNotificationSignal = new CountDownLatch(count); |
| 63 | // Signal that the test is now waiting for files. |
| 64 | mReadySignal.countDown(); |
| 65 | if (!mNotificationSignal.await(timeOut, TimeUnit.MILLISECONDS)) { |
| 66 | throw new TimeoutException("Timed out waiting for file operations to complete."); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | @Override |
| 71 | public void notifyChange(Uri uri, ContentObserver observer, boolean syncToNetwork) { |
| 72 | // Wait until the test is ready to receive file notifications. |
| 73 | try { |
| 74 | mReadySignal.await(); |
| 75 | } catch (InterruptedException e) { |
| 76 | Log.d(TAG, "Interrupted while waiting for file copy readiness"); |
| 77 | Thread.currentThread().interrupt(); |
| 78 | } |
| 79 | if (DocumentsContract.isDocumentUri(mContext, uri)) { |
| 80 | Log.d(TAG, "Notification: " + uri); |
| 81 | // Watch for document URI change notifications - this signifies the end of a copy. |
| 82 | mNotificationSignal.countDown(); |
| 83 | } |
| 84 | } |
| 85 | } |