| /* |
| * 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)); |
| } |
| } |