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/*
* Copyright (C) 2009, 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 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());
}
}
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