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89 lines
3.1 KiB
Java
89 lines
3.1 KiB
Java
// Copyright 2016 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.util;
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import static com.google.common.truth.Truth.assertThat;
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import static java.util.Arrays.asList;
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import com.google.common.collect.ImmutableSet;
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import google.registry.testing.ExceptionRule;
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import java.io.ByteArrayOutputStream;
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import java.io.OutputStream;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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/** Unit tests for {@link TeeOutputStream}. */
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@RunWith(JUnit4.class)
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public class TeeOutputStreamTest {
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@Rule
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public ExceptionRule thrown = new ExceptionRule();
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private final ByteArrayOutputStream outputA = new ByteArrayOutputStream();
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private final ByteArrayOutputStream outputB = new ByteArrayOutputStream();
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private final ByteArrayOutputStream outputC = new ByteArrayOutputStream();
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@Test
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public void testWrite_writesToMultipleStreams() throws Exception {
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// Write shared data using the tee output stream.
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try (OutputStream tee =
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new TeeOutputStream(asList(outputA, outputB, outputC))) {
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tee.write("hello ".getBytes());
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tee.write("hello world!".getBytes(), 6, 5);
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tee.write('!');
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}
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// Write some more data to the different streams - they should not have been closed.
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outputA.write("a".getBytes());
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outputB.write("b".getBytes());
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outputC.write("c".getBytes());
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// Check the results.
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assertThat(outputA.toString()).isEqualTo("hello world!a");
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assertThat(outputB.toString()).isEqualTo("hello world!b");
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assertThat(outputC.toString()).isEqualTo("hello world!c");
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}
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@Test
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@SuppressWarnings("resource")
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public void testConstructor_failsWithEmptyIterable() {
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thrown.expect(IllegalArgumentException.class);
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new TeeOutputStream(ImmutableSet.<OutputStream>of());
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}
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@Test
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public void testWriteInteger_failsAfterClose() throws Exception {
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OutputStream tee = new TeeOutputStream(asList(outputA));
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tee.close();
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thrown.expect(IllegalStateException.class, "outputstream closed");
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tee.write(1);
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}
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@Test
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public void testWriteByteArray_failsAfterClose() throws Exception {
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OutputStream tee = new TeeOutputStream(asList(outputA));
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tee.close();
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thrown.expect(IllegalStateException.class, "outputstream closed");
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tee.write("hello".getBytes());
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}
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@Test
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public void testWriteByteSubarray_failsAfterClose() throws Exception {
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OutputStream tee = new TeeOutputStream(asList(outputA));
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tee.close();
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thrown.expect(IllegalStateException.class, "outputstream closed");
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tee.write("hello".getBytes(), 1, 3);
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}
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}
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