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- /*
- * Copyright (C) 2009-2010, Google Inc. 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.transport;
-
- import static java.lang.Integer.valueOf;
- import static java.nio.charset.StandardCharsets.UTF_8;
- import static org.eclipse.jgit.transport.SideBandOutputStream.CH_DATA;
- import static org.eclipse.jgit.transport.SideBandOutputStream.CH_ERROR;
- import static org.eclipse.jgit.transport.SideBandOutputStream.CH_PROGRESS;
- import static org.eclipse.jgit.transport.SideBandOutputStream.HDR_SIZE;
- import static org.eclipse.jgit.transport.SideBandOutputStream.MAX_BUF;
- import static org.eclipse.jgit.transport.SideBandOutputStream.SMALL_BUF;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.fail;
-
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.text.MessageFormat;
-
- import org.eclipse.jgit.internal.JGitText;
- import org.junit.Before;
- import org.junit.Test;
-
- // Note, test vectors created with:
- //
- // perl -e 'printf "%4.4x%s\n", 4+length($ARGV[0]),$ARGV[0]'
-
- public class SideBandOutputStreamTest {
- private ByteArrayOutputStream rawOut;
-
- @Before
- public void setUp() throws Exception {
- rawOut = new ByteArrayOutputStream();
- }
-
- @Test
- public void testWrite_CH_DATA() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
- SMALL_BUF, rawOut)) {
- out.write(new byte[] { 'a', 'b', 'c' });
- out.flush();
- }
- assertBuffer("0008\001abc");
- }
-
- @Test
- public void testWrite_CH_PROGRESS() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_PROGRESS,
- SMALL_BUF, rawOut)) {
- out.write(new byte[] { 'a', 'b', 'c' });
- out.flush();
- }
- assertBuffer("0008\002abc");
- }
-
- @Test
- public void testWrite_CH_ERROR() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_ERROR,
- SMALL_BUF, rawOut)) {
- out.write(new byte[] { 'a', 'b', 'c' });
- out.flush();
- }
- assertBuffer("0008\003abc");
- }
-
- @Test
- public void testWrite_Small() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
- SMALL_BUF, rawOut)) {
- out.write('a');
- out.write('b');
- out.write('c');
- out.flush();
- }
- assertBuffer("0008\001abc");
- }
-
- @Test
- public void testWrite_SmallBlocks1() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA, 6,
- rawOut)) {
- out.write('a');
- out.write('b');
- out.write('c');
- out.flush();
- }
- assertBuffer("0006\001a0006\001b0006\001c");
- }
-
- @Test
- public void testWrite_SmallBlocks2() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA, 6,
- rawOut)) {
- out.write(new byte[] { 'a', 'b', 'c' });
- out.flush();
- }
- assertBuffer("0006\001a0006\001b0006\001c");
- }
-
- @Test
- public void testWrite_SmallBlocks3() throws IOException {
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA, 7,
- rawOut)) {
- out.write('a');
- out.write(new byte[] { 'b', 'c' });
- out.flush();
- }
- assertBuffer("0007\001ab0006\001c");
- }
-
- @Test
- public void testWrite_Large() throws IOException {
- final int buflen = MAX_BUF - HDR_SIZE;
- final byte[] buf = new byte[buflen];
- for (int i = 0; i < buf.length; i++) {
- buf[i] = (byte) i;
- }
-
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
- MAX_BUF, rawOut)) {
- out.write(buf);
- out.flush();
- }
-
- final byte[] act = rawOut.toByteArray();
- final String explen = Integer.toString(buf.length + HDR_SIZE, 16);
- assertEquals(HDR_SIZE + buf.length, act.length);
- assertEquals(new String(act, 0, 4, "UTF-8"), explen);
- assertEquals(1, act[4]);
- for (int i = 0, j = HDR_SIZE; i < buf.length; i++, j++) {
- assertEquals(buf[i], act[j]);
- }
- }
-
- @Test
- public void testFlush() throws IOException {
- final int[] flushCnt = new int[1];
- final OutputStream mockout = new OutputStream() {
- @Override
- public void write(int arg0) throws IOException {
- fail("should not write");
- }
-
- @Override
- public void flush() throws IOException {
- flushCnt[0]++;
- }
- };
-
- try (SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
- SMALL_BUF, mockout)) {
- out.flush();
- }
- assertEquals(1, flushCnt[0]);
- }
-
- private void createSideBandOutputStream(int chan, int sz, OutputStream os)
- throws Exception {
- try (SideBandOutputStream s = new SideBandOutputStream(chan, sz, os)) {
- // Unused
- }
- }
-
- @Test
- public void testConstructor_RejectsBadChannel() throws Exception {
- try {
- createSideBandOutputStream(-1, MAX_BUF, rawOut);
- fail("Accepted -1 channel number");
- } catch (IllegalArgumentException e) {
- assertEquals("channel -1 must be in range [1, 255]", e.getMessage());
- }
-
- try {
- createSideBandOutputStream(0, MAX_BUF, rawOut);
- fail("Accepted 0 channel number");
- } catch (IllegalArgumentException e) {
- assertEquals("channel 0 must be in range [1, 255]", e.getMessage());
- }
-
- try {
- createSideBandOutputStream(256, MAX_BUF, rawOut);
- fail("Accepted 256 channel number");
- } catch (IllegalArgumentException e) {
- assertEquals("channel 256 must be in range [1, 255]", e
- .getMessage());
- }
- }
-
- @Test
- public void testConstructor_RejectsBadBufferSize() throws Exception {
- try {
- createSideBandOutputStream(CH_DATA, -1, rawOut);
- fail("Accepted -1 for buffer size");
- } catch (IllegalArgumentException e) {
- assertEquals("packet size -1 must be >= 5", e.getMessage());
- }
-
- try {
- createSideBandOutputStream(CH_DATA, 0, rawOut);
- fail("Accepted 0 for buffer size");
- } catch (IllegalArgumentException e) {
- assertEquals("packet size 0 must be >= 5", e.getMessage());
- }
-
- try {
- createSideBandOutputStream(CH_DATA, 1, rawOut);
- fail("Accepted 1 for buffer size");
- } catch (IllegalArgumentException e) {
- assertEquals("packet size 1 must be >= 5", e.getMessage());
- }
-
- try {
- createSideBandOutputStream(CH_DATA, Integer.MAX_VALUE, rawOut);
- fail("Accepted " + Integer.MAX_VALUE + " for buffer size");
- } catch (IllegalArgumentException e) {
- assertEquals(MessageFormat.format(
- JGitText.get().packetSizeMustBeAtMost,
- valueOf(Integer.MAX_VALUE), valueOf(65520)), e.getMessage());
- }
- }
-
- private void assertBuffer(String exp) {
- assertEquals(exp, new String(rawOut.toByteArray(), UTF_8));
- }
- }
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