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/*******************************************************************************
* Copyright (c) 2002 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v0.5
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v05.html
*
* Contributors:
* IBM - Initial implementation
******************************************************************************/
package org.eclipse.team.tests.core;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.eclipse.team.internal.core.streams.CRLFtoLFInputStream;
import org.eclipse.team.internal.core.streams.LFtoCRLFInputStream;
public class StreamTests extends TestCase {
private static final byte[] EMPTY_SEQ = new byte[] { };
private static final byte[] LF_SEQ = new byte[] { '\n' };
private static final byte[] CRLF_SEQ = new byte[] { '\r', '\n' };
public StreamTests(String name) {
super(name);
}
public static Test suite() {
return new TestSuite(StreamTests.class);
}
public void testCRLFtoLFInputStream() throws IOException {
testCRLFtoLFTranslation("", "");
testCRLFtoLFTranslation("a", "a");
testCRLFtoLFTranslation("abc", "abc");
testCRLFtoLFTranslation("\n", "\n");
testCRLFtoLFTranslation("\r", "\r");
testCRLFtoLFTranslation("\r\n", "\n");
testCRLFtoLFTranslation("x\r\r\n\rx", "x\r\n\rx");
testCRLFtoLFTranslation("The \r\n quick brown \n fox \r\n\n\r\r\n jumped \n\n over \r\n the \n lazy dog.\r\n",
"The \n quick brown \n fox \n\n\r\n jumped \n\n over \n the \n lazy dog.\n");
}
private void testCRLFtoLFTranslation(String pre, String post) throws IOException {
ByteArrayInputStream bin = new ByteArrayInputStream(pre.getBytes());
InputStream in = new CRLFtoLFInputStream(bin);
InputStream inExpected = new ByteArrayInputStream(post.getBytes());
assertStreamEquals(inExpected, in);
}
public void testLFtoCRLFInputStream() throws IOException {
testLFtoCRLFTranslation("", "");
testLFtoCRLFTranslation("a", "a");
testLFtoCRLFTranslation("abc", "abc");
testLFtoCRLFTranslation("\n", "\r\n");
testLFtoCRLFTranslation("\r", "\r");
testLFtoCRLFTranslation("\r\n", "\r\r\n");
testLFtoCRLFTranslation("x\r\r\n\rx", "x\r\r\r\n\rx");
testLFtoCRLFTranslation("The \r\n quick brown \n fox \r\n\n\r\r\n jumped \n\n over \r\n the \n lazy dog.\r\n",
"The \r\r\n quick brown \r\n fox \r\r\n\r\n\r\r\r\n jumped \r\n\r\n over \r\r\n the \r\n lazy dog.\r\r\n");
}
private void testLFtoCRLFTranslation(String pre, String post) throws IOException {
ByteArrayInputStream bin = new ByteArrayInputStream(pre.getBytes());
InputStream in = new LFtoCRLFInputStream(bin);
InputStream inExpected = new ByteArrayInputStream(post.getBytes());
assertStreamEquals(inExpected, in);
}
private void assertStreamEquals(InputStream in1, InputStream in2) throws IOException {
try {
for (;;) {
int byte1 = in1.read();
int byte2 = in2.read();
assertEquals("Streams not equal", byte1, byte2);
if (byte1 == -1) break;
}
} finally {
in1.close();
in2.close();
}
}
}
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