1 /* 2 * Copyright 2022 Google LLC 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 package com.google.android.libraries.mobiledatadownload.file.openers; 17 18 import static com.google.common.truth.Truth.assertThat; 19 import static org.mockito.ArgumentMatchers.any; 20 import static org.mockito.Mockito.mock; 21 import static org.mockito.Mockito.when; 22 23 import android.net.Uri; 24 import com.google.android.libraries.mobiledatadownload.file.SynchronousFileStorage; 25 import com.google.android.libraries.mobiledatadownload.file.common.testing.TemporaryUri; 26 import com.google.android.libraries.mobiledatadownload.file.spi.Backend; 27 import java.io.BufferedInputStream; 28 import java.io.ByteArrayInputStream; 29 import java.io.InputStream; 30 import java.util.Arrays; 31 import org.junit.Before; 32 import org.junit.Rule; 33 import org.junit.Test; 34 import org.junit.runner.RunWith; 35 import org.robolectric.RobolectricTestRunner; 36 37 @RunWith(RobolectricTestRunner.class) 38 public final class ReadStreamOpenerTest { 39 40 private final InputStream backendStream = new ByteArrayInputStream(new byte[1]); 41 private SynchronousFileStorage storage; 42 43 @Rule public TemporaryUri tmpUri = new TemporaryUri(); 44 45 @Before setUpStorage()46 public void setUpStorage() throws Exception { 47 Backend mockBackend = mock(Backend.class); 48 when(mockBackend.name()).thenReturn("file"); 49 when(mockBackend.openForRead(any())).thenReturn(backendStream); 50 51 storage = new SynchronousFileStorage(Arrays.asList(mockBackend)); 52 } 53 54 @Test open_withoutTransforms_returnsRawBackendStream()55 public void open_withoutTransforms_returnsRawBackendStream() throws Exception { 56 Uri uri = tmpUri.newUri(); 57 58 try (InputStream result = storage.open(uri, ReadStreamOpener.create())) { 59 assertThat(result).isEqualTo(backendStream); 60 } 61 } 62 63 @Test open_withBufferedIo_returnsBufferedInputStream()64 public void open_withBufferedIo_returnsBufferedInputStream() throws Exception { 65 Uri uri = tmpUri.newUri(); 66 67 try (InputStream result = storage.open(uri, ReadStreamOpener.create().withBufferedIo())) { 68 assertThat(result).isInstanceOf(BufferedInputStream.class); 69 } 70 } 71 } 72