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- /*
- * Copyright (C) 2011, 2013 Robin Rosenberg
- * Copyright (C) 2013 Robin Stocker
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.util.io;
-
- import java.io.ByteArrayInputStream;
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
-
- import org.junit.Assert;
- import org.junit.Test;
-
- public class AutoCRLFOutputStreamTest {
-
- @Test
- public void test() throws IOException {
- assertNoCrLf("", "");
- assertNoCrLf("\r", "\r");
- assertNoCrLf("\r\n", "\n");
- assertNoCrLf("\r\n", "\r\n");
- assertNoCrLf("\r\r", "\r\r");
- assertNoCrLf("\r\n\r", "\n\r");
- assertNoCrLf("\r\n\r\r", "\r\n\r\r");
- assertNoCrLf("\r\n\r\n", "\r\n\r\n");
- assertNoCrLf("\r\n\r\n\r", "\n\r\n\r");
- assertNoCrLf("\0\n", "\0\n");
- }
-
- @Test
- public void testBoundary() throws IOException {
- for (int i = AutoCRLFOutputStream.BUFFER_SIZE - 10; i < AutoCRLFOutputStream.BUFFER_SIZE + 10; i++) {
- String s1 = Strings.repeat("a", i);
- assertNoCrLf(s1, s1);
- String s2 = Strings.repeat("\0", i);
- assertNoCrLf(s2, s2);
- }
- }
-
- private void assertNoCrLf(String string, String string2) throws IOException {
- assertNoCrLfHelper(string, string2);
- // \u00e5 = LATIN SMALL LETTER A WITH RING ABOVE
- // the byte value is negative
- assertNoCrLfHelper("\u00e5" + string, "\u00e5" + string2);
- assertNoCrLfHelper("\u00e5" + string + "\u00e5", "\u00e5" + string2
- + "\u00e5");
- assertNoCrLfHelper(string + "\u00e5", string2 + "\u00e5");
- }
-
- private void assertNoCrLfHelper(String expect, String input)
- throws IOException {
- byte[] inbytes = input.getBytes();
- byte[] expectBytes = expect.getBytes();
- for (int i = -4; i < 5; ++i) {
- int size = Math.abs(i);
- byte[] buf = new byte[size];
- InputStream in = new ByteArrayInputStream(inbytes);
- ByteArrayOutputStream bos = new ByteArrayOutputStream();
- OutputStream out = new AutoCRLFOutputStream(bos);
- if (i > 0) {
- int n;
- while ((n = in.read(buf)) >= 0) {
- out.write(buf, 0, n);
- }
- } else if (i < 0) {
- int n;
- while ((n = in.read(buf)) >= 0) {
- byte[] b = new byte[n];
- System.arraycopy(buf, 0, b, 0, n);
- out.write(b);
- }
- } else {
- int c;
- while ((c = in.read()) != -1)
- out.write(c);
- }
- out.flush();
- in.close();
- out.close();
- byte[] actualBytes = bos.toByteArray();
- Assert.assertEquals("bufsize=" + size, encode(expectBytes),
- encode(actualBytes));
- }
- }
-
- String encode(byte[] in) {
- StringBuilder str = new StringBuilder();
- for (byte b : in) {
- if (b < 32)
- str.append(0xFF & b);
- else {
- str.append("'");
- str.append((char) b);
- str.append("'");
- }
- str.append(' ');
- }
- return str.toString();
- }
-
- }
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