| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.io.input; |
| |
| import static org.junit.jupiter.api.Assertions.assertNotNull; |
| import static org.junit.jupiter.api.Assertions.assertNull; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.time.Instant; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Tests {@link TimestampedObserver}. |
| */ |
| public class TimestampedObserverTest { |
| |
| @Test |
| public void test() throws IOException, InterruptedException { |
| final Instant before = Instant.now(); |
| Thread.sleep(20); // Some OS' clock granularity may be high. |
| final TimestampedObserver timestampedObserver = new TimestampedObserver(); |
| // toString() should not blow up before close(). |
| assertNotNull(timestampedObserver.toString()); |
| assertTrue(timestampedObserver.getOpenInstant().isAfter(before)); |
| assertTrue(timestampedObserver.getOpenToNowDuration().toNanos() > 0); |
| assertNull(timestampedObserver.getCloseInstant()); |
| final byte[] buffer = MessageDigestCalculatingInputStreamTest |
| .generateRandomByteStream(IOUtils.DEFAULT_BUFFER_SIZE); |
| try (final ObservableInputStream ois = new ObservableInputStream(new ByteArrayInputStream(buffer), |
| timestampedObserver)) { |
| assertTrue(timestampedObserver.getOpenInstant().isAfter(before)); |
| assertTrue(timestampedObserver.getOpenToNowDuration().toNanos() > 0); |
| } |
| assertTrue(timestampedObserver.getOpenInstant().isAfter(before)); |
| assertTrue(timestampedObserver.getOpenToNowDuration().toNanos() > 0); |
| assertTrue(timestampedObserver.getCloseInstant().isAfter(timestampedObserver.getOpenInstant())); |
| assertTrue(timestampedObserver.getOpenToCloseDuration().toNanos() > 0); |
| assertNotNull(timestampedObserver.toString()); |
| } |
| |
| @Test |
| public void testExample() throws IOException, InterruptedException { |
| final TimestampedObserver timestampedObserver = new TimestampedObserver(); |
| final byte[] buffer = MessageDigestCalculatingInputStreamTest |
| .generateRandomByteStream(IOUtils.DEFAULT_BUFFER_SIZE); |
| try (final ObservableInputStream ois = new ObservableInputStream(new ByteArrayInputStream(buffer), |
| timestampedObserver)) { |
| // |
| } |
| // System.out.printf("IO duration: %s%n", timestampedObserver); |
| // System.out.printf("IO duration: %s%n", timestampedObserver.getOpenToCloseDuration()); |
| } |
| |
| } |