| /* |
| * 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.monitors; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static java.util.concurrent.TimeUnit.SECONDS; |
| |
| import com.google.android.libraries.mobiledatadownload.testing.FakeTimeSource; |
| import java.util.concurrent.atomic.AtomicLong; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.robolectric.RobolectricTestRunner; |
| |
| @RunWith(RobolectricTestRunner.class) |
| public final class ByteCountingOutputMonitorTest { |
| |
| private ByteCountingOutputMonitor testOutputMonitor; |
| private long testStorageLength = 0; |
| private final FakeTimeSource clock = new FakeTimeSource(); |
| private static final long LOG_FREQUENCY = 1L; |
| |
| private class TestCounter implements ByteCountingOutputMonitor.Counter { |
| private final AtomicLong buffer = new AtomicLong(); |
| |
| @Override |
| public void bufferCounter(int len) { |
| buffer.getAndAdd(len); |
| } |
| |
| @Override |
| public void flushCounter() { |
| testStorageLength += buffer.getAndSet(0); |
| } |
| } |
| |
| @Before |
| public void setUp() { |
| testOutputMonitor = |
| new ByteCountingOutputMonitor( |
| new TestCounter(), clock::currentTimeMillis, LOG_FREQUENCY, SECONDS); |
| } |
| |
| @Test |
| public void testBytesWrittenInsideInterval_shouldNotFlush() throws InterruptedException { |
| // allow enough time to pass to enable flushing |
| clock.advance(LOG_FREQUENCY, SECONDS); |
| testOutputMonitor.bytesWritten(new byte[1], 0, 1); |
| testOutputMonitor.bytesWritten(new byte[1], 0, 1); |
| |
| assertThat(testStorageLength).isEqualTo(1); |
| } |
| |
| @Test |
| public void testBytesWrittenOutsideInterval_shouldFlush() throws InterruptedException { |
| testOutputMonitor.bytesWritten(new byte[1], 0, 1); |
| clock.advance(LOG_FREQUENCY, SECONDS); |
| testOutputMonitor.bytesWritten(new byte[1], 0, 1); |
| |
| assertThat(testStorageLength).isEqualTo(2); |
| } |
| |
| @Test |
| public void testBytesWrittenAfterClose_shouldFlush() throws InterruptedException { |
| // allow enough time to pass to enable flushing |
| clock.advance(LOG_FREQUENCY, SECONDS); |
| testOutputMonitor.bytesWritten(new byte[1], 0, 1); |
| testOutputMonitor.close(); |
| |
| assertThat(testStorageLength).isEqualTo(1); |
| } |
| } |