org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PacketLineInTest.java - jgit - Git at Google

 /*
  * Copyright (C) 2009, Google Inc.
  * 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.transport;

 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.fail;

 import java.io.ByteArrayInputStream;
 import java.io.IOException;

 import org.eclipse.jgit.errors.PackProtocolException;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.MutableObjectId;
 import org.eclipse.jgit.lib.ObjectId;
 import org.junit.Test;

 // Note, test vectors created with:
 //
 // perl -e 'printf "%4.4x%s\n", 4+length($ARGV[0]),$ARGV[0]'

 public class PacketLineInTest {
 	private ByteArrayInputStream rawIn;

 	private PacketLineIn in;

 	// readString

 	@Test
 	public void testReadString1() throws IOException {
 		init("0006a\n0007bc\n");
 		assertEquals("a", in.readString());
 		assertEquals("bc", in.readString());
 		assertEOF();
 	}

 	@Test
 	public void testReadString2() throws IOException {
 		init("0032want fcfcfb1fd94829c1a1704f894fc111d14770d34e\n");
 		final String act = in.readString();
 		assertEquals("want fcfcfb1fd94829c1a1704f894fc111d14770d34e", act);
 		assertEOF();
 	}

 	@Test
 	public void testReadString4() throws IOException {
 		init("0005a0006bc");
 		assertEquals("a", in.readString());
 		assertEquals("bc", in.readString());
 		assertEOF();
 	}

 	@Test
 	public void testReadString5() throws IOException {
 		// accept both upper and lower case
 		init("000Fhi i am a s");
 		assertEquals("hi i am a s", in.readString());
 		assertEOF();

 		init("000fhi i am a s");
 		assertEquals("hi i am a s", in.readString());
 		assertEOF();
 	}

 	@Test
 	public void testReadString_LenHELO() {
 		init("HELO");
 		try {
 			in.readString();
 			fail("incorrectly accepted invalid packet header");
 		} catch (IOException e) {
 			assertEquals("Invalid packet line header: HELO", e.getMessage());
 		}
 	}

 	@Test
 	public void testReadString_Len0002() {
 		init("0002");
 		try {
 			in.readString();
 			fail("incorrectly accepted invalid packet header");
 		} catch (IOException e) {
 			assertEquals("Invalid packet line header: 0002", e.getMessage());
 		}
 	}

 	@Test
 	public void testReadString_Len0003() {
 		init("0003");
 		try {
 			in.readString();
 			fail("incorrectly accepted invalid packet header");
 		} catch (IOException e) {
 			assertEquals("Invalid packet line header: 0003", e.getMessage());
 		}
 	}

 	@Test
 	public void testReadString_Len0004() throws IOException {
 		init("0004");
 		final String act = in.readString();
 		assertEquals("", act);
 		assertFalse(PacketLineIn.isEnd(act));
 		assertEOF();
 	}

 	@Test
 	public void testReadString_End() throws IOException {
 		init("0000");
 		assertTrue(PacketLineIn.isEnd(in.readString()));
 		assertEOF();
 	}

 	@Test
 	public void testReadString_Delim() throws IOException {
 		init("0001");
 		assertTrue(PacketLineIn.isDelimiter(in.readString()));
 		assertEOF();
 	}

 	// readStringNoLF

 	@Test
 	public void testReadStringRaw1() throws IOException {
 		init("0005a0006bc");
 		assertEquals("a", in.readStringRaw());
 		assertEquals("bc", in.readStringRaw());
 		assertEOF();
 	}

 	@Test
 	public void testReadStringRaw2() throws IOException {
 		init("0031want fcfcfb1fd94829c1a1704f894fc111d14770d34e");
 		final String act = in.readStringRaw();
 		assertEquals("want fcfcfb1fd94829c1a1704f894fc111d14770d34e", act);
 		assertEOF();
 	}

 	@Test
 	public void testReadStringRaw3() throws IOException {
 		init("0004");
 		final String act = in.readStringRaw();
 		assertEquals("", act);
 		assertFalse(PacketLineIn.isEnd(act));
 		assertEOF();
 	}

 	@Test
 	public void testReadStringRaw_End() throws IOException {
 		init("0000");
 		assertTrue(PacketLineIn.isEnd(in.readString()));
 		assertEOF();
 	}

 	@Test
 	public void testReadStringRaw4() {
 		init("HELO");
 		try {
 			in.readStringRaw();
 			fail("incorrectly accepted invalid packet header");
 		} catch (IOException e) {
 			assertEquals("Invalid packet line header: HELO", e.getMessage());
 		}
 	}

 	// readACK

 	@Test
 	public void testReadACK_NAK() throws IOException {
 		final ObjectId expid = ObjectId
 				.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
 		final MutableObjectId actid = new MutableObjectId();
 		actid.fromString(expid.name());

 		init("0008NAK\n");
 		assertSame(PacketLineIn.AckNackResult.NAK, in.readACK(actid));
 		assertEquals(expid, actid);
 		assertEOF();
 	}

 	@Test
 	public void testReadACK_ACK1() throws IOException {
 		final ObjectId expid = ObjectId
 				.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
 		final MutableObjectId actid = new MutableObjectId();

 		init("0031ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e\n");
 		assertSame(PacketLineIn.AckNackResult.ACK, in.readACK(actid));
 		assertEquals(expid, actid);
 		assertEOF();
 	}

 	@Test
 	public void testReadACK_ACKcontinue1() throws IOException {
 		final ObjectId expid = ObjectId
 				.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
 		final MutableObjectId actid = new MutableObjectId();

 		init("003aACK fcfcfb1fd94829c1a1704f894fc111d14770d34e continue\n");
 		assertSame(PacketLineIn.AckNackResult.ACK_CONTINUE, in.readACK(actid));
 		assertEquals(expid, actid);
 		assertEOF();
 	}

 	@Test
 	public void testReadACK_ACKcommon1() throws IOException {
 		final ObjectId expid = ObjectId
 				.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
 		final MutableObjectId actid = new MutableObjectId();

 		init("0038ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e common\n");
 		assertSame(PacketLineIn.AckNackResult.ACK_COMMON, in.readACK(actid));
 		assertEquals(expid, actid);
 		assertEOF();
 	}

 	@Test
 	public void testReadACK_ACKready1() throws IOException {
 		final ObjectId expid = ObjectId
 				.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
 		final MutableObjectId actid = new MutableObjectId();

 		init("0037ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e ready\n");
 		assertSame(PacketLineIn.AckNackResult.ACK_READY, in.readACK(actid));
 		assertEquals(expid, actid);
 		assertEOF();
 	}

 	@Test
 	public void testReadACK_Invalid1() {
 		init("HELO");
 		try {
 			in.readACK(new MutableObjectId());
 			fail("incorrectly accepted invalid packet header");
 		} catch (IOException e) {
 			assertEquals("Invalid packet line header: HELO", e.getMessage());
 		}
 	}

 	@Test
 	public void testReadACK_Invalid2() {
 		init("0009HELO\n");
 		try {
 			in.readACK(new MutableObjectId());
 			fail("incorrectly accepted invalid ACK/NAK");
 		} catch (IOException e) {
 			assertEquals("Expected ACK/NAK, got: HELO", e.getMessage());
 		}
 	}

 	@Test
 	public void testReadACK_Invalid3() {
 		String s = "ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e neverhappen";
 		init("003d" + s + "\n");
 		try {
 			in.readACK(new MutableObjectId());
 			fail("incorrectly accepted unsupported ACK status");
 		} catch (IOException e) {
 			assertEquals("Expected ACK/NAK, got: " + s, e.getMessage());
 		}
 	}

 	@Test
 	public void testReadACK_Invalid4() {
 		init("0000");
 		try {
 			in.readACK(new MutableObjectId());
 			fail("incorrectly accepted no ACK/NAK");
 		} catch (IOException e) {
 			assertEquals("Expected ACK/NAK, found EOF", e.getMessage());
 		}
 	}

 	@Test
 	public void testReadACK_ERR() throws IOException {
 		init("001aERR want is not valid\n");
 		try {
 			in.readACK(new MutableObjectId());
 			fail("incorrectly accepted ERR");
 		} catch (PackProtocolException e) {
 			assertEquals("want is not valid", e.getMessage());
 		}
 	}

 	// test support

 	private void init(String msg) {
 		rawIn = new ByteArrayInputStream(Constants.encodeASCII(msg));
 		in = new PacketLineIn(rawIn);
 	}

 	private void assertEOF() {
 		assertEquals(-1, rawIn.read());
 	}
 }
	/*
	* Copyright (C) 2009, Google Inc.
	* 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.transport;

	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertFalse;
	import static org.junit.Assert.assertTrue;
	import static org.junit.Assert.assertSame;
	import static org.junit.Assert.fail;

	import java.io.ByteArrayInputStream;
	import java.io.IOException;

	import org.eclipse.jgit.errors.PackProtocolException;
	import org.eclipse.jgit.lib.Constants;
	import org.eclipse.jgit.lib.MutableObjectId;
	import org.eclipse.jgit.lib.ObjectId;
	import org.junit.Test;

	// Note, test vectors created with:
	//
	// perl -e 'printf "%4.4x%s\n", 4+length($ARGV[0]),$ARGV[0]'

	public class PacketLineInTest {
	private ByteArrayInputStream rawIn;

	private PacketLineIn in;

	// readString

	@Test
	public void testReadString1() throws IOException {
	init("0006a\n0007bc\n");
	assertEquals("a", in.readString());
	assertEquals("bc", in.readString());
	assertEOF();
	}

	@Test
	public void testReadString2() throws IOException {
	init("0032want fcfcfb1fd94829c1a1704f894fc111d14770d34e\n");
	final String act = in.readString();
	assertEquals("want fcfcfb1fd94829c1a1704f894fc111d14770d34e", act);
	assertEOF();
	}

	@Test
	public void testReadString4() throws IOException {
	init("0005a0006bc");
	assertEquals("a", in.readString());
	assertEquals("bc", in.readString());
	assertEOF();
	}

	@Test
	public void testReadString5() throws IOException {
	// accept both upper and lower case
	init("000Fhi i am a s");
	assertEquals("hi i am a s", in.readString());
	assertEOF();

	init("000fhi i am a s");
	assertEquals("hi i am a s", in.readString());
	assertEOF();
	}

	@Test
	public void testReadString_LenHELO() {
	init("HELO");
	try {
	in.readString();
	fail("incorrectly accepted invalid packet header");
	} catch (IOException e) {
	assertEquals("Invalid packet line header: HELO", e.getMessage());
	}
	}

	@Test
	public void testReadString_Len0002() {
	init("0002");
	try {
	in.readString();
	fail("incorrectly accepted invalid packet header");
	} catch (IOException e) {
	assertEquals("Invalid packet line header: 0002", e.getMessage());
	}
	}

	@Test
	public void testReadString_Len0003() {
	init("0003");
	try {
	in.readString();
	fail("incorrectly accepted invalid packet header");
	} catch (IOException e) {
	assertEquals("Invalid packet line header: 0003", e.getMessage());
	}
	}

	@Test
	public void testReadString_Len0004() throws IOException {
	init("0004");
	final String act = in.readString();
	assertEquals("", act);
	assertFalse(PacketLineIn.isEnd(act));
	assertEOF();
	}

	@Test
	public void testReadString_End() throws IOException {
	init("0000");
	assertTrue(PacketLineIn.isEnd(in.readString()));
	assertEOF();
	}

	@Test
	public void testReadString_Delim() throws IOException {
	init("0001");
	assertTrue(PacketLineIn.isDelimiter(in.readString()));
	assertEOF();
	}

	// readStringNoLF

	@Test
	public void testReadStringRaw1() throws IOException {
	init("0005a0006bc");
	assertEquals("a", in.readStringRaw());
	assertEquals("bc", in.readStringRaw());
	assertEOF();
	}

	@Test
	public void testReadStringRaw2() throws IOException {
	init("0031want fcfcfb1fd94829c1a1704f894fc111d14770d34e");
	final String act = in.readStringRaw();
	assertEquals("want fcfcfb1fd94829c1a1704f894fc111d14770d34e", act);
	assertEOF();
	}

	@Test
	public void testReadStringRaw3() throws IOException {
	init("0004");
	final String act = in.readStringRaw();
	assertEquals("", act);
	assertFalse(PacketLineIn.isEnd(act));
	assertEOF();
	}

	@Test
	public void testReadStringRaw_End() throws IOException {
	init("0000");
	assertTrue(PacketLineIn.isEnd(in.readString()));
	assertEOF();
	}

	@Test
	public void testReadStringRaw4() {
	init("HELO");
	try {
	in.readStringRaw();
	fail("incorrectly accepted invalid packet header");
	} catch (IOException e) {
	assertEquals("Invalid packet line header: HELO", e.getMessage());
	}
	}

	// readACK

	@Test
	public void testReadACK_NAK() throws IOException {
	final ObjectId expid = ObjectId
	.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
	final MutableObjectId actid = new MutableObjectId();
	actid.fromString(expid.name());

	init("0008NAK\n");
	assertSame(PacketLineIn.AckNackResult.NAK, in.readACK(actid));
	assertEquals(expid, actid);
	assertEOF();
	}

	@Test
	public void testReadACK_ACK1() throws IOException {
	final ObjectId expid = ObjectId
	.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
	final MutableObjectId actid = new MutableObjectId();

	init("0031ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e\n");
	assertSame(PacketLineIn.AckNackResult.ACK, in.readACK(actid));
	assertEquals(expid, actid);
	assertEOF();
	}

	@Test
	public void testReadACK_ACKcontinue1() throws IOException {
	final ObjectId expid = ObjectId
	.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
	final MutableObjectId actid = new MutableObjectId();

	init("003aACK fcfcfb1fd94829c1a1704f894fc111d14770d34e continue\n");
	assertSame(PacketLineIn.AckNackResult.ACK_CONTINUE, in.readACK(actid));
	assertEquals(expid, actid);
	assertEOF();
	}

	@Test
	public void testReadACK_ACKcommon1() throws IOException {
	final ObjectId expid = ObjectId
	.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
	final MutableObjectId actid = new MutableObjectId();

	init("0038ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e common\n");
	assertSame(PacketLineIn.AckNackResult.ACK_COMMON, in.readACK(actid));
	assertEquals(expid, actid);
	assertEOF();
	}

	@Test
	public void testReadACK_ACKready1() throws IOException {
	final ObjectId expid = ObjectId
	.fromString("fcfcfb1fd94829c1a1704f894fc111d14770d34e");
	final MutableObjectId actid = new MutableObjectId();

	init("0037ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e ready\n");
	assertSame(PacketLineIn.AckNackResult.ACK_READY, in.readACK(actid));
	assertEquals(expid, actid);
	assertEOF();
	}

	@Test
	public void testReadACK_Invalid1() {
	init("HELO");
	try {
	in.readACK(new MutableObjectId());
	fail("incorrectly accepted invalid packet header");
	} catch (IOException e) {
	assertEquals("Invalid packet line header: HELO", e.getMessage());
	}
	}

	@Test
	public void testReadACK_Invalid2() {
	init("0009HELO\n");
	try {
	in.readACK(new MutableObjectId());
	fail("incorrectly accepted invalid ACK/NAK");
	} catch (IOException e) {
	assertEquals("Expected ACK/NAK, got: HELO", e.getMessage());
	}
	}

	@Test
	public void testReadACK_Invalid3() {
	String s = "ACK fcfcfb1fd94829c1a1704f894fc111d14770d34e neverhappen";
	init("003d" + s + "\n");
	try {
	in.readACK(new MutableObjectId());
	fail("incorrectly accepted unsupported ACK status");
	} catch (IOException e) {
	assertEquals("Expected ACK/NAK, got: " + s, e.getMessage());
	}
	}

	@Test
	public void testReadACK_Invalid4() {
	init("0000");
	try {
	in.readACK(new MutableObjectId());
	fail("incorrectly accepted no ACK/NAK");
	} catch (IOException e) {
	assertEquals("Expected ACK/NAK, found EOF", e.getMessage());
	}
	}

	@Test
	public void testReadACK_ERR() throws IOException {
	init("001aERR want is not valid\n");
	try {
	in.readACK(new MutableObjectId());
	fail("incorrectly accepted ERR");
	} catch (PackProtocolException e) {
	assertEquals("want is not valid", e.getMessage());
	}
	}

	// test support

	private void init(String msg) {
	rawIn = new ByteArrayInputStream(Constants.encodeASCII(msg));
	in = new PacketLineIn(rawIn);
	}

	private void assertEOF() {
	assertEquals(-1, rawIn.read());
	}
	}