org.eclipse.jgit.lfs.test/tst/org/eclipse/jgit/lfs/lib/LongObjectIdTest.java - sop/jgit - Git at Google

 /*
  * Copyright (C) 2015, Matthias Sohn <matthias.sohn@sap.com>
  * 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.lfs.lib;

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

 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.OutputStreamWriter;
 import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Locale;

 import org.eclipse.jgit.junit.JGitTestUtil;
 import org.eclipse.jgit.lfs.errors.InvalidLongObjectIdException;
 import org.eclipse.jgit.lfs.test.LongObjectIdTestUtils;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.util.FileUtils;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;

 /*
  * Ported to SHA-256 from org.eclipse.jgit.lib.ObjectIdTest
  */
 public class LongObjectIdTest {
 	private static Path tmp;

 	@BeforeClass
 	public static void setup() throws IOException {
 		tmp = Files.createTempDirectory("jgit_test_");
 	}

 	@AfterClass
 	public static void tearDown() throws IOException {
 		FileUtils.delete(tmp.toFile(), FileUtils.RECURSIVE | FileUtils.RETRY);
 	}

 	@Test
 	public void test001_toString() {
 		final String x = "8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a";
 		final LongObjectId oid = LongObjectId.fromString(x);
 		assertEquals(x, oid.name());
 	}

 	@Test
 	public void test002_toString() {
 		final String x = "140ce71d628cceb78e3709940ba52a651a0c4a9c1400f2e15e998a1a43887edf";
 		final LongObjectId oid = LongObjectId.fromString(x);
 		assertEquals(x, oid.name());
 	}

 	@Test
 	public void test003_equals() {
 		final String x = "8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a";
 		final LongObjectId a = LongObjectId.fromString(x);
 		final LongObjectId b = LongObjectId.fromString(x);
 		assertEquals(a.hashCode(), b.hashCode());
 		assertEquals("a and b should be equal", b, a);
 	}

 	@Test
 	public void test004_isId() {
 		assertTrue("valid id", LongObjectId.isId(
 				"8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a"));
 	}

 	@Test
 	public void test005_notIsId() {
 		assertFalse("bob is not an id", LongObjectId.isId("bob"));
 	}

 	@Test
 	public void test006_notIsId() {
 		assertFalse("63 digits is not an id", LongObjectId.isId(
 				"8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0"));
 	}

 	@Test
 	public void test007_isId() {
 		assertTrue("uppercase is accepted", LongObjectId.isId(
 				"8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2dEb7ab0A"));
 	}

 	@Test
 	public void test008_notIsId() {
 		assertFalse("g is not a valid hex digit", LongObjectId.isId(
 				"g367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a"));
 	}

 	@Test
 	public void test009_toString() {
 		final String x = "140ce71d628cceb78e3709940ba52a651a0c4a9c1400f2e15e998a1a43887edf";
 		final LongObjectId oid = LongObjectId.fromString(x);
 		assertEquals(x, LongObjectId.toString(oid));
 	}

 	@Test
 	public void test010_toString() {
 		final String x = "0000000000000000000000000000000000000000000000000000000000000000";
 		assertEquals(x, LongObjectId.toString(null));
 	}

 	@Test
 	public void test011_toString() {
 		final String x = "0123456789ABCDEFabcdef01234567890123456789ABCDEFabcdef0123456789";
 		final LongObjectId oid = LongObjectId.fromString(x);
 		assertEquals(x.toLowerCase(Locale.ROOT), oid.name());
 	}

 	@Test
 	public void testGetByte() {
 		byte[] raw = new byte[32];
 		for (int i = 0; i < 32; i++)
 			raw[i] = (byte) (0xa0 + i);
 		LongObjectId id = LongObjectId.fromRaw(raw);

 		assertEquals(raw[0] & 0xff, id.getFirstByte());
 		assertEquals(raw[0] & 0xff, id.getByte(0));
 		assertEquals(raw[1] & 0xff, id.getByte(1));
 		assertEquals(raw[1] & 0xff, id.getSecondByte());

 		for (int i = 2; i < 32; i++) {
 			assertEquals("index " + i, raw[i] & 0xff, id.getByte(i));
 		}
 		try {
 			id.getByte(32);
 			fail("LongObjectId has 32 byte only");
 		} catch (ArrayIndexOutOfBoundsException e) {
 			// expected
 		}
 	}

 	@Test
 	public void testSetByte() {
 		byte[] exp = new byte[32];
 		for (int i = 0; i < 32; i++) {
 			exp[i] = (byte) (0xa0 + i);
 		}

 		MutableLongObjectId id = new MutableLongObjectId();
 		id.fromRaw(exp);
 		assertEquals(LongObjectId.fromRaw(exp).name(), id.name());

 		id.setByte(0, 0x10);
 		assertEquals(0x10, id.getByte(0));
 		exp[0] = 0x10;
 		assertEquals(LongObjectId.fromRaw(exp).name(), id.name());

 		for (int p = 1; p < 32; p++) {
 			id.setByte(p, 0x10 + p);
 			assertEquals(0x10 + p, id.getByte(p));
 			exp[p] = (byte) (0x10 + p);
 			assertEquals(LongObjectId.fromRaw(exp).name(), id.name());
 		}

 		for (int p = 0; p < 32; p++) {
 			id.setByte(p, 0x80 + p);
 			assertEquals(0x80 + p, id.getByte(p));
 			exp[p] = (byte) (0x80 + p);
 			assertEquals(LongObjectId.fromRaw(exp).name(), id.name());
 		}
 	}

 	@Test
 	public void testZeroId() {
 		AnyLongObjectId zero = new LongObjectId(0L, 0L, 0L, 0L);
 		assertEquals(zero, LongObjectId.zeroId());
 		assertEquals(
 				"0000000000000000000000000000000000000000000000000000000000000000",
 				LongObjectId.zeroId().name());
 	}

 	@Test
 	public void testEquals() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		assertTrue("id should equal itself", id1.equals(id1));
 		AnyLongObjectId id2 = new LongObjectId(id1);
 		assertEquals("objects should be equals", id1, id2);

 		id2 = LongObjectIdTestUtils.hash("other");
 		assertNotEquals("objects should be not equal", id1, id2);
 	}

 	@Test
 	public void testCopyRawBytes() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		AnyLongObjectId id2 = new LongObjectId(id1);

 		byte[] buf = new byte[64];
 		id1.copyRawTo(buf, 0);
 		id2.copyRawTo(buf, 32);
 		assertTrue("objects should be equals",
 				LongObjectId.equals(buf, 0, buf, 32));
 	}

 	@Test
 	public void testCopyRawLongs() {
 		long[] a = new long[4];
 		a[0] = 1L;
 		a[1] = 2L;
 		a[2] = 3L;
 		a[3] = 4L;
 		AnyLongObjectId id1 = new LongObjectId(a[0], a[1], a[2], a[3]);
 		AnyLongObjectId id2 = LongObjectId.fromRaw(a);
 		assertEquals("objects should be equals", id1, id2);
 	}

 	@Test
 	public void testCopyFromStringInvalid() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		try {
 			LongObjectId.fromString(id1.name() + "01234");
 			fail("expected InvalidLongObjectIdException");
 		} catch (InvalidLongObjectIdException e) {
 			assertEquals("Invalid id: " + id1.name() + "01234",
 					e.getMessage());
 		}
 	}

 	@Test
 	public void testCopyFromStringByte() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		byte[] buf = new byte[64];
 		Charset cs = StandardCharsets.US_ASCII;
 		cs.encode(id1.name()).get(buf);
 		AnyLongObjectId id2 = LongObjectId.fromString(buf, 0);
 		assertEquals("objects should be equals", id1, id2);
 	}

 	@Test
 	public void testHashFile() throws IOException {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		Path f = tmp.resolve("test");
 		JGitTestUtil.write(f.toFile(), "test");
 		AnyLongObjectId id2 = LongObjectIdTestUtils.hash(f);
 		assertEquals("objects should be equals", id1, id2);
 	}

 	@Test
 	public void testCompareTo() {
 		AnyLongObjectId id1 = LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef");
 		assertEquals(0, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")));

 		assertEquals(-1, id1.compareTo(LongObjectId.fromString(
 				"1123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")));
 		assertEquals(-1, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef1123456789abcdef0123456789abcdef0123456789abcdef")));
 		assertEquals(-1, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef1123456789abcdef0123456789abcdef")));
 		assertEquals(-1, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef0123456789abcdef1123456789abcdef")));

 		assertEquals(1, id1.compareTo(LongObjectId.fromString(
 				"0023456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")));
 		assertEquals(1, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef0023456789abcdef0123456789abcdef0123456789abcdef")));
 		assertEquals(1, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef0023456789abcdef0123456789abcdef")));
 		assertEquals(1, id1.compareTo(LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef0123456789abcdef0023456789abcdef")));
 	}

 	@Test
 	public void testCompareToByte() {
 		AnyLongObjectId id1 = LongObjectId.fromString(
 				"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef");
 		byte[] buf = new byte[32];
 		id1.copyRawTo(buf, 0);
 		assertEquals(0, id1.compareTo(buf, 0));

 		LongObjectId
 				.fromString(
 						"1123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
 				.copyRawTo(buf, 0);
 		assertEquals(-1, id1.compareTo(buf, 0));

 		LongObjectId
 				.fromString(
 						"0023456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
 				.copyRawTo(buf, 0);
 		assertEquals(1, id1.compareTo(buf, 0));
 	}

 	@Test
 	public void testCompareToLong() {
 		AnyLongObjectId id1 = new LongObjectId(1L, 2L, 3L, 4L);
 		long[] buf = new long[4];
 		id1.copyRawTo(buf, 0);
 		assertEquals(0, id1.compareTo(buf, 0));

 		new LongObjectId(2L, 2L, 3L, 4L).copyRawTo(buf, 0);
 		assertEquals(-1, id1.compareTo(buf, 0));

 		new LongObjectId(0L, 2L, 3L, 4L).copyRawTo(buf, 0);
 		assertEquals(1, id1.compareTo(buf, 0));
 	}

 	@Test
 	public void testCopyToByte() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		byte[] buf = new byte[64];
 		id1.copyTo(buf, 0);
 		assertEquals(id1, LongObjectId.fromString(buf, 0));
 	}

 	@Test
 	public void testCopyRawToByteBuffer() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		ByteBuffer buf = ByteBuffer.allocate(32);
 		id1.copyRawTo(buf);
 		assertEquals(id1, LongObjectId.fromRaw(buf.array(), 0));
 	}

 	@Test
 	public void testCopyToByteBuffer() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		ByteBuffer buf = ByteBuffer.allocate(64);
 		id1.copyTo(buf);
 		assertEquals(id1, LongObjectId.fromString(buf.array(), 0));
 	}

 	@Test
 	public void testCopyRawToOutputStream() throws IOException {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		ByteArrayOutputStream os = new ByteArrayOutputStream(32);
 		id1.copyRawTo(os);
 		assertEquals(id1, LongObjectId.fromRaw(os.toByteArray(), 0));
 	}

 	@Test
 	public void testCopyToOutputStream() throws IOException {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		ByteArrayOutputStream os = new ByteArrayOutputStream(64);
 		id1.copyTo(os);
 		assertEquals(id1, LongObjectId.fromString(os.toByteArray(), 0));
 	}

 	@Test
 	public void testCopyToWriter() throws IOException {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		ByteArrayOutputStream os = new ByteArrayOutputStream(64);
 		OutputStreamWriter w = new OutputStreamWriter(os, Constants.CHARSET);
 		id1.copyTo(w);
 		w.close();
 		assertEquals(id1, LongObjectId.fromString(os.toByteArray(), 0));
 	}

 	@Test
 	public void testCopyToWriterWithBuf() throws IOException {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		ByteArrayOutputStream os = new ByteArrayOutputStream(64);
 		OutputStreamWriter w = new OutputStreamWriter(os, Constants.CHARSET);
 		char[] buf = new char[64];
 		id1.copyTo(buf, w);
 		w.close();
 		assertEquals(id1, LongObjectId.fromString(os.toByteArray(), 0));
 	}

 	@Test
 	public void testCopyToStringBuilder() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		StringBuilder sb = new StringBuilder();
 		char[] buf = new char[64];
 		id1.copyTo(buf, sb);
 		assertEquals(id1, LongObjectId.fromString(sb.toString()));
 	}

 	@Test
 	public void testCopy() {
 		AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
 		assertEquals(id1.copy(), id1);
 		MutableLongObjectId id2 = new MutableLongObjectId();
 		id2.fromObjectId(id1);
 		assertEquals(id1, id2.copy());
 	}
 }
	/*
	* Copyright (C) 2015, Matthias Sohn <matthias.sohn@sap.com>
	* 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.lfs.lib;

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

	import java.io.ByteArrayOutputStream;
	import java.io.IOException;
	import java.io.OutputStreamWriter;
	import java.nio.ByteBuffer;
	import java.nio.charset.Charset;
	import java.nio.charset.StandardCharsets;
	import java.nio.file.Files;
	import java.nio.file.Path;
	import java.util.Locale;

	import org.eclipse.jgit.junit.JGitTestUtil;
	import org.eclipse.jgit.lfs.errors.InvalidLongObjectIdException;
	import org.eclipse.jgit.lfs.test.LongObjectIdTestUtils;
	import org.eclipse.jgit.lib.Constants;
	import org.eclipse.jgit.util.FileUtils;
	import org.junit.AfterClass;
	import org.junit.BeforeClass;
	import org.junit.Test;

	/*
	* Ported to SHA-256 from org.eclipse.jgit.lib.ObjectIdTest
	*/
	public class LongObjectIdTest {
	private static Path tmp;

	@BeforeClass
	public static void setup() throws IOException {
	tmp = Files.createTempDirectory("jgit_test_");
	}

	@AfterClass
	public static void tearDown() throws IOException {
	FileUtils.delete(tmp.toFile(), FileUtils.RECURSIVE \| FileUtils.RETRY);
	}

	@Test
	public void test001_toString() {
	final String x = "8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a";
	final LongObjectId oid = LongObjectId.fromString(x);
	assertEquals(x, oid.name());
	}

	@Test
	public void test002_toString() {
	final String x = "140ce71d628cceb78e3709940ba52a651a0c4a9c1400f2e15e998a1a43887edf";
	final LongObjectId oid = LongObjectId.fromString(x);
	assertEquals(x, oid.name());
	}

	@Test
	public void test003_equals() {
	final String x = "8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a";
	final LongObjectId a = LongObjectId.fromString(x);
	final LongObjectId b = LongObjectId.fromString(x);
	assertEquals(a.hashCode(), b.hashCode());
	assertEquals("a and b should be equal", b, a);
	}

	@Test
	public void test004_isId() {
	assertTrue("valid id", LongObjectId.isId(
	"8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a"));
	}

	@Test
	public void test005_notIsId() {
	assertFalse("bob is not an id", LongObjectId.isId("bob"));
	}

	@Test
	public void test006_notIsId() {
	assertFalse("63 digits is not an id", LongObjectId.isId(
	"8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0"));
	}

	@Test
	public void test007_isId() {
	assertTrue("uppercase is accepted", LongObjectId.isId(
	"8367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2dEb7ab0A"));
	}

	@Test
	public void test008_notIsId() {
	assertFalse("g is not a valid hex digit", LongObjectId.isId(
	"g367b0edc81df80e6b42eb1b71f783111224e058cb3da37894d065d2deb7ab0a"));
	}

	@Test
	public void test009_toString() {
	final String x = "140ce71d628cceb78e3709940ba52a651a0c4a9c1400f2e15e998a1a43887edf";
	final LongObjectId oid = LongObjectId.fromString(x);
	assertEquals(x, LongObjectId.toString(oid));
	}

	@Test
	public void test010_toString() {
	final String x = "0000000000000000000000000000000000000000000000000000000000000000";
	assertEquals(x, LongObjectId.toString(null));
	}

	@Test
	public void test011_toString() {
	final String x = "0123456789ABCDEFabcdef01234567890123456789ABCDEFabcdef0123456789";
	final LongObjectId oid = LongObjectId.fromString(x);
	assertEquals(x.toLowerCase(Locale.ROOT), oid.name());
	}

	@Test
	public void testGetByte() {
	byte[] raw = new byte[32];
	for (int i = 0; i < 32; i++)
	raw[i] = (byte) (0xa0 + i);
	LongObjectId id = LongObjectId.fromRaw(raw);

	assertEquals(raw[0] & 0xff, id.getFirstByte());
	assertEquals(raw[0] & 0xff, id.getByte(0));
	assertEquals(raw[1] & 0xff, id.getByte(1));
	assertEquals(raw[1] & 0xff, id.getSecondByte());

	for (int i = 2; i < 32; i++) {
	assertEquals("index " + i, raw[i] & 0xff, id.getByte(i));
	}
	try {
	id.getByte(32);
	fail("LongObjectId has 32 byte only");
	} catch (ArrayIndexOutOfBoundsException e) {
	// expected
	}
	}

	@Test
	public void testSetByte() {
	byte[] exp = new byte[32];
	for (int i = 0; i < 32; i++) {
	exp[i] = (byte) (0xa0 + i);
	}

	MutableLongObjectId id = new MutableLongObjectId();
	id.fromRaw(exp);
	assertEquals(LongObjectId.fromRaw(exp).name(), id.name());

	id.setByte(0, 0x10);
	assertEquals(0x10, id.getByte(0));
	exp[0] = 0x10;
	assertEquals(LongObjectId.fromRaw(exp).name(), id.name());

	for (int p = 1; p < 32; p++) {
	id.setByte(p, 0x10 + p);
	assertEquals(0x10 + p, id.getByte(p));
	exp[p] = (byte) (0x10 + p);
	assertEquals(LongObjectId.fromRaw(exp).name(), id.name());
	}

	for (int p = 0; p < 32; p++) {
	id.setByte(p, 0x80 + p);
	assertEquals(0x80 + p, id.getByte(p));
	exp[p] = (byte) (0x80 + p);
	assertEquals(LongObjectId.fromRaw(exp).name(), id.name());
	}
	}

	@Test
	public void testZeroId() {
	AnyLongObjectId zero = new LongObjectId(0L, 0L, 0L, 0L);
	assertEquals(zero, LongObjectId.zeroId());
	assertEquals(
	"0000000000000000000000000000000000000000000000000000000000000000",
	LongObjectId.zeroId().name());
	}

	@Test
	public void testEquals() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	assertTrue("id should equal itself", id1.equals(id1));
	AnyLongObjectId id2 = new LongObjectId(id1);
	assertEquals("objects should be equals", id1, id2);

	id2 = LongObjectIdTestUtils.hash("other");
	assertNotEquals("objects should be not equal", id1, id2);
	}

	@Test
	public void testCopyRawBytes() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	AnyLongObjectId id2 = new LongObjectId(id1);

	byte[] buf = new byte[64];
	id1.copyRawTo(buf, 0);
	id2.copyRawTo(buf, 32);
	assertTrue("objects should be equals",
	LongObjectId.equals(buf, 0, buf, 32));
	}

	@Test
	public void testCopyRawLongs() {
	long[] a = new long[4];
	a[0] = 1L;
	a[1] = 2L;
	a[2] = 3L;
	a[3] = 4L;
	AnyLongObjectId id1 = new LongObjectId(a[0], a[1], a[2], a[3]);
	AnyLongObjectId id2 = LongObjectId.fromRaw(a);
	assertEquals("objects should be equals", id1, id2);
	}

	@Test
	public void testCopyFromStringInvalid() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	try {
	LongObjectId.fromString(id1.name() + "01234");
	fail("expected InvalidLongObjectIdException");
	} catch (InvalidLongObjectIdException e) {
	assertEquals("Invalid id: " + id1.name() + "01234",
	e.getMessage());
	}
	}

	@Test
	public void testCopyFromStringByte() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	byte[] buf = new byte[64];
	Charset cs = StandardCharsets.US_ASCII;
	cs.encode(id1.name()).get(buf);
	AnyLongObjectId id2 = LongObjectId.fromString(buf, 0);
	assertEquals("objects should be equals", id1, id2);
	}

	@Test
	public void testHashFile() throws IOException {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	Path f = tmp.resolve("test");
	JGitTestUtil.write(f.toFile(), "test");
	AnyLongObjectId id2 = LongObjectIdTestUtils.hash(f);
	assertEquals("objects should be equals", id1, id2);
	}

	@Test
	public void testCompareTo() {
	AnyLongObjectId id1 = LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef");
	assertEquals(0, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")));

	assertEquals(-1, id1.compareTo(LongObjectId.fromString(
	"1123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")));
	assertEquals(-1, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef1123456789abcdef0123456789abcdef0123456789abcdef")));
	assertEquals(-1, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef1123456789abcdef0123456789abcdef")));
	assertEquals(-1, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef0123456789abcdef1123456789abcdef")));

	assertEquals(1, id1.compareTo(LongObjectId.fromString(
	"0023456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")));
	assertEquals(1, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef0023456789abcdef0123456789abcdef0123456789abcdef")));
	assertEquals(1, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef0023456789abcdef0123456789abcdef")));
	assertEquals(1, id1.compareTo(LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef0123456789abcdef0023456789abcdef")));
	}

	@Test
	public void testCompareToByte() {
	AnyLongObjectId id1 = LongObjectId.fromString(
	"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef");
	byte[] buf = new byte[32];
	id1.copyRawTo(buf, 0);
	assertEquals(0, id1.compareTo(buf, 0));

	LongObjectId
	.fromString(
	"1123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
	.copyRawTo(buf, 0);
	assertEquals(-1, id1.compareTo(buf, 0));

	LongObjectId
	.fromString(
	"0023456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
	.copyRawTo(buf, 0);
	assertEquals(1, id1.compareTo(buf, 0));
	}

	@Test
	public void testCompareToLong() {
	AnyLongObjectId id1 = new LongObjectId(1L, 2L, 3L, 4L);
	long[] buf = new long[4];
	id1.copyRawTo(buf, 0);
	assertEquals(0, id1.compareTo(buf, 0));

	new LongObjectId(2L, 2L, 3L, 4L).copyRawTo(buf, 0);
	assertEquals(-1, id1.compareTo(buf, 0));

	new LongObjectId(0L, 2L, 3L, 4L).copyRawTo(buf, 0);
	assertEquals(1, id1.compareTo(buf, 0));
	}

	@Test
	public void testCopyToByte() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	byte[] buf = new byte[64];
	id1.copyTo(buf, 0);
	assertEquals(id1, LongObjectId.fromString(buf, 0));
	}

	@Test
	public void testCopyRawToByteBuffer() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	ByteBuffer buf = ByteBuffer.allocate(32);
	id1.copyRawTo(buf);
	assertEquals(id1, LongObjectId.fromRaw(buf.array(), 0));
	}

	@Test
	public void testCopyToByteBuffer() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	ByteBuffer buf = ByteBuffer.allocate(64);
	id1.copyTo(buf);
	assertEquals(id1, LongObjectId.fromString(buf.array(), 0));
	}

	@Test
	public void testCopyRawToOutputStream() throws IOException {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	ByteArrayOutputStream os = new ByteArrayOutputStream(32);
	id1.copyRawTo(os);
	assertEquals(id1, LongObjectId.fromRaw(os.toByteArray(), 0));
	}

	@Test
	public void testCopyToOutputStream() throws IOException {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	ByteArrayOutputStream os = new ByteArrayOutputStream(64);
	id1.copyTo(os);
	assertEquals(id1, LongObjectId.fromString(os.toByteArray(), 0));
	}

	@Test
	public void testCopyToWriter() throws IOException {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	ByteArrayOutputStream os = new ByteArrayOutputStream(64);
	OutputStreamWriter w = new OutputStreamWriter(os, Constants.CHARSET);
	id1.copyTo(w);
	w.close();
	assertEquals(id1, LongObjectId.fromString(os.toByteArray(), 0));
	}

	@Test
	public void testCopyToWriterWithBuf() throws IOException {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	ByteArrayOutputStream os = new ByteArrayOutputStream(64);
	OutputStreamWriter w = new OutputStreamWriter(os, Constants.CHARSET);
	char[] buf = new char[64];
	id1.copyTo(buf, w);
	w.close();
	assertEquals(id1, LongObjectId.fromString(os.toByteArray(), 0));
	}

	@Test
	public void testCopyToStringBuilder() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	StringBuilder sb = new StringBuilder();
	char[] buf = new char[64];
	id1.copyTo(buf, sb);
	assertEquals(id1, LongObjectId.fromString(sb.toString()));
	}

	@Test
	public void testCopy() {
	AnyLongObjectId id1 = LongObjectIdTestUtils.hash("test");
	assertEquals(id1.copy(), id1);
	MutableLongObjectId id2 = new MutableLongObjectId();
	id2.fromObjectId(id1);
	assertEquals(id1, id2.copy());
	}
	}