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/*
* 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.tools.ant.util;
import java.io.IOException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class LineOrientedOutputStreamTest {
private static String LINE = "This is a line";
private DummyStream stream;
@Before
public void setUp() {
stream = new DummyStream();
}
@After
public void tearDown() throws IOException {
if (stream != null) {
stream.close();
}
}
@Test
public void testLineWithLinefeedArray() throws IOException {
writeByteArray();
writeAsArray('\n');
stream.assertInvoked();
}
@Test
public void testLineWithLinefeedSingleBytes() throws IOException {
writeSingleBytes();
stream.write('\n');
stream.assertInvoked();
}
@Test
public void testLineWithCariagereturnArray() throws IOException {
writeByteArray();
writeAsArray('\r');
stream.assertInvoked();
}
@Test
public void testLineWithCariagereturnSingleBytes() throws IOException {
writeSingleBytes();
stream.write('\r');
stream.assertInvoked();
}
@Test
public void testLineWithCariagereturnLinefeedArray() throws IOException {
writeByteArray();
writeAsArray('\r');
writeAsArray('\n');
stream.assertInvoked();
}
@Test
public void testLineWithCariagereturnLinefeedSingleBytes() throws IOException {
writeSingleBytes();
stream.write('\r');
stream.write('\n');
stream.assertInvoked();
}
@Test
public void testFlushArray() throws IOException {
writeByteArray();
stream.flush();
stream.assertNotInvoked();
}
@Test
public void testFlushSingleBytes() throws IOException {
writeSingleBytes();
stream.flush();
stream.assertNotInvoked();
}
@Test
public void testCloseArray() throws IOException {
writeByteArray();
stream.close();
stream.assertInvoked();
stream = null;
}
@Test
public void testCloseSingleBytes() throws IOException {
writeSingleBytes();
stream.close();
stream.assertInvoked();
stream = null;
}
private void writeByteArray() throws IOException {
stream.write(LINE.getBytes(), 0, LINE.length());
}
private void writeSingleBytes() throws IOException {
byte[] b = LINE.getBytes();
for (int i = 0; i < b.length; i++) {
stream.write(b[i]);
}
}
private void writeAsArray(char c) throws IOException {
stream.write(new byte[] {(byte) c}, 0, 1);
}
private class DummyStream extends LineOrientedOutputStream {
private boolean invoked;
protected void processLine(String line) {
assertFalse("Only one line", invoked);
assertEquals(LINE, line);
invoked = true;
}
private void assertInvoked() {
assertTrue("At least one line", invoked);
}
private void assertNotInvoked() {
assertTrue("No output", !invoked);
}
}
}// LineOrientedOutputStreamTest
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