google-nomulus/javatests/google/registry/util/TeeOutputStreamTest.java
mcilwain 03c782f38e Replace ExceptionRule with ExpectedException
This is in preparation for running the automatic refactoring script that
will replace all ExpectedExceptions with use of JUnit 4.13's assertThrows/
expectThrows.

Note that I have recorded the callsites of assertions about EppExceptions
being marshallable and will edit those specific assertions back in after
running the automatic refactoring script (which do not understand these).

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=178812403
2017-12-13 12:43:45 -05:00

93 lines
3.3 KiB
Java

// Copyright 2017 The Nomulus Authors. All Rights Reserved.
//
// 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 google.registry.util;
import static com.google.common.truth.Truth.assertThat;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.Arrays.asList;
import com.google.common.collect.ImmutableSet;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link TeeOutputStream}. */
@RunWith(JUnit4.class)
public class TeeOutputStreamTest {
@Rule
public ExpectedException thrown = ExpectedException.none();
private final ByteArrayOutputStream outputA = new ByteArrayOutputStream();
private final ByteArrayOutputStream outputB = new ByteArrayOutputStream();
private final ByteArrayOutputStream outputC = new ByteArrayOutputStream();
@Test
public void testWrite_writesToMultipleStreams() throws Exception {
// Write shared data using the tee output stream.
try (OutputStream tee =
new TeeOutputStream(asList(outputA, outputB, outputC))) {
tee.write("hello ".getBytes(UTF_8));
tee.write("hello world!".getBytes(UTF_8), 6, 5);
tee.write('!');
}
// Write some more data to the different streams - they should not have been closed.
outputA.write("a".getBytes(UTF_8));
outputB.write("b".getBytes(UTF_8));
outputC.write("c".getBytes(UTF_8));
// Check the results.
assertThat(outputA.toString()).isEqualTo("hello world!a");
assertThat(outputB.toString()).isEqualTo("hello world!b");
assertThat(outputC.toString()).isEqualTo("hello world!c");
}
@Test
@SuppressWarnings("resource")
public void testConstructor_failsWithEmptyIterable() {
thrown.expect(IllegalArgumentException.class);
new TeeOutputStream(ImmutableSet.of());
}
@Test
public void testWriteInteger_failsAfterClose() throws Exception {
OutputStream tee = new TeeOutputStream(asList(outputA));
tee.close();
thrown.expect(IllegalStateException.class);
thrown.expectMessage("outputstream closed");
tee.write(1);
}
@Test
public void testWriteByteArray_failsAfterClose() throws Exception {
OutputStream tee = new TeeOutputStream(asList(outputA));
tee.close();
thrown.expect(IllegalStateException.class);
thrown.expectMessage("outputstream closed");
tee.write("hello".getBytes(UTF_8));
}
@Test
public void testWriteByteSubarray_failsAfterClose() throws Exception {
OutputStream tee = new TeeOutputStream(asList(outputA));
tee.close();
thrown.expect(IllegalStateException.class);
thrown.expectMessage("outputstream closed");
tee.write("hello".getBytes(UTF_8), 1, 3);
}
}