| /* |
| * Copyright 2022 Google LLC |
| * |
| * 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.google.android.libraries.mobiledatadownload.file; |
| |
| import static com.google.android.libraries.mobiledatadownload.file.common.testing.StreamUtils.makeArrayOfBytesContent; |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.mockito.ArgumentMatchers.any; |
| import static org.mockito.Mockito.doThrow; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import android.net.Uri; |
| import com.google.android.libraries.mobiledatadownload.file.common.testing.BufferingMonitor; |
| import com.google.android.libraries.mobiledatadownload.file.spi.Monitor; |
| import com.google.thirdparty.robolectric.GoogleRobolectricTestRunner; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.Arrays; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** Test {@link com.google.android.libraries.mobiledatadownload.file.MonitorOutputStream}. */ |
| @RunWith(GoogleRobolectricTestRunner.class) |
| public class MonitorOutputStreamTest { |
| |
| private static final byte[] TEST_CONTENT = makeArrayOfBytesContent(); |
| |
| @Test |
| public void monitorWrite_shouldSeeAllBytes() throws Exception { |
| BufferingMonitor buffer = new BufferingMonitor(); |
| Uri uri = Uri.parse("foo:"); |
| OutputStream out = new ByteArrayOutputStream(); |
| MonitorOutputStream stream = |
| MonitorOutputStream.newInstanceForWrite(Arrays.asList(buffer), uri, out); |
| |
| byte[] content0 = Arrays.copyOf(TEST_CONTENT, 7); |
| byte[] content1 = Arrays.copyOfRange(TEST_CONTENT, 7, 10); |
| stream.write(content0[0]); |
| stream.write(content0, 1, 6); |
| stream.write(content1); |
| |
| assertThat(buffer.bytesWritten()).isEqualTo(Arrays.copyOf(TEST_CONTENT, 10)); |
| } |
| |
| @Test |
| public void monitorAppend_shouldSeeAllBytes() throws Exception { |
| BufferingMonitor buffer = new BufferingMonitor(); |
| Uri uri = Uri.parse("foo:"); |
| OutputStream out = new ByteArrayOutputStream(); |
| MonitorOutputStream stream = |
| MonitorOutputStream.newInstanceForAppend(Arrays.asList(buffer), uri, out); |
| |
| byte[] content0 = Arrays.copyOf(TEST_CONTENT, 7); |
| byte[] content1 = Arrays.copyOfRange(TEST_CONTENT, 7, 10); |
| stream.write(content0[0]); |
| stream.write(content0, 1, 6); |
| stream.write(content1); |
| |
| assertThat(buffer.bytesAppended()).isEqualTo(Arrays.copyOf(TEST_CONTENT, 10)); |
| } |
| |
| @Test |
| public void monitorWrite_withNullOutputMonitor_shouldReturnNull() throws Exception { |
| Monitor mockMonitor = mock(Monitor.class); |
| when(mockMonitor.monitorWrite(any())).thenReturn(null); |
| Uri uri = Uri.parse("foo:"); |
| OutputStream out = new ByteArrayOutputStream(); |
| |
| assertThat(MonitorOutputStream.newInstanceForWrite(Arrays.asList(mockMonitor), uri, out)) |
| .isNull(); |
| } |
| |
| @Test |
| public void monitorAppend_withNullOutputMonitor_shouldReturnNull() throws Exception { |
| Monitor mockMonitor = mock(Monitor.class); |
| when(mockMonitor.monitorAppend(any())).thenReturn(null); |
| Uri uri = Uri.parse("foo:"); |
| OutputStream out = new ByteArrayOutputStream(); |
| |
| assertThat(MonitorOutputStream.newInstanceForAppend(Arrays.asList(mockMonitor), uri, out)) |
| .isNull(); |
| } |
| |
| @Test |
| public void monitorWrite_shouldCallClose() throws Exception { |
| Monitor mockMonitor = mock(Monitor.class); |
| Monitor.OutputMonitor mockOutputMonitor = mock(Monitor.OutputMonitor.class); |
| when(mockMonitor.monitorWrite(any())).thenReturn(mockOutputMonitor); |
| Uri uri = Uri.parse("foo:"); |
| FakeOutputStream fakeOut = new FakeOutputStream(); |
| try (MonitorOutputStream stream = |
| MonitorOutputStream.newInstanceForWrite(Arrays.asList(mockMonitor), uri, fakeOut)) { |
| stream.write(TEST_CONTENT); |
| } |
| verify(mockOutputMonitor, times(1)).close(); |
| assertThat(fakeOut.bytesWritten).isEqualTo(TEST_CONTENT.length); |
| assertThat(fakeOut.closed).isTrue(); |
| } |
| |
| @Test |
| public void monitorWriteWithMonitorCloseException_shouldCallClose() throws Exception { |
| Monitor mockMonitor = mock(Monitor.class); |
| Monitor.OutputMonitor mockOutputMonitor = mock(Monitor.OutputMonitor.class); |
| when(mockMonitor.monitorWrite(any())).thenReturn(mockOutputMonitor); |
| doThrow(new RuntimeException("Unchecked")).when(mockOutputMonitor).close(); |
| Uri uri = Uri.parse("foo:"); |
| FakeOutputStream fakeOut = new FakeOutputStream(); |
| try (MonitorOutputStream stream = |
| MonitorOutputStream.newInstanceForWrite(Arrays.asList(mockMonitor), uri, fakeOut)) { |
| stream.write(TEST_CONTENT); |
| } |
| verify(mockOutputMonitor, times(1)).close(); |
| assertThat(fakeOut.bytesWritten).isEqualTo(TEST_CONTENT.length); |
| assertThat(fakeOut.closed).isTrue(); |
| } |
| |
| private static class FakeOutputStream extends OutputStream { |
| private boolean closed = true; |
| private int bytesWritten = 0; |
| |
| @Override |
| public void write(int b) throws IOException { |
| bytesWritten += 1; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| closed = true; |
| } |
| } |
| } |