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/*
* Copyright (C) 2020, Michael Dardis. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.util.io;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.eclipse.jgit.lib.Constants;
import org.junit.Test;
public class TeeOutputStreamTest {
@Test
public void test() throws IOException {
byte[] data = Constants.encode("Hello World");
TestOutput first = new TestOutput();
TestOutput second = new TestOutput();
try (TeeOutputStream tee = new TeeOutputStream(first, second)) {
tee.write(data);
assertArrayEquals("Stream output must match", first.toByteArray(),
second.toByteArray());
tee.write(1);
assertArrayEquals("Stream output must match", first.toByteArray(),
second.toByteArray());
tee.write(data, 1, 4); // Test partial write methods
assertArrayEquals("Stream output must match", first.toByteArray(),
second.toByteArray());
}
assertTrue("First stream should be closed", first.closed);
assertTrue("Second stream should be closed", second.closed);
}
@Test
public void testCloseException() {
TestOutput first = new TestOutput() {
@Override
public void close() throws IOException {
throw new IOException();
}
};
TestOutput second = new TestOutput();
@SuppressWarnings("resource")
TeeOutputStream tee = new TeeOutputStream(first, second);
try {
tee.close();
} catch (IOException ex) {
// Expected from first closed
}
assertFalse("First stream should not be closed", first.closed);
assertTrue("Second stream should still be closed if first close failed",
second.closed);
}
private static class TestOutput extends ByteArrayOutputStream {
private boolean closed;
@Override
public void close() throws IOException {
closed = true;
super.close();
}
}
}
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