tikhomirov@534: /*
tikhomirov@534:  * Copyright (c) 2013 TMate Software Ltd
tikhomirov@534:  *  
tikhomirov@534:  * This program is free software; you can redistribute it and/or modify
tikhomirov@534:  * it under the terms of the GNU General Public License as published by
tikhomirov@534:  * the Free Software Foundation; version 2 of the License.
tikhomirov@534:  *
tikhomirov@534:  * This program is distributed in the hope that it will be useful,
tikhomirov@534:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
tikhomirov@534:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tikhomirov@534:  * GNU General Public License for more details.
tikhomirov@534:  *
tikhomirov@534:  * For information on how to redistribute this software under
tikhomirov@534:  * the terms of a license other than GNU General Public License
tikhomirov@534:  * contact TMate Software at support@hg4j.com
tikhomirov@534:  */
tikhomirov@534: package org.tmatesoft.hg.test;
tikhomirov@534: 
tikhomirov@559: import static org.junit.Assert.*;
tikhomirov@559: import static org.tmatesoft.hg.repo.HgRepository.*;
tikhomirov@539: 
tikhomirov@538: import java.io.File;
tikhomirov@559: import java.io.IOException;
tikhomirov@538: import java.nio.ByteBuffer;
tikhomirov@559: import java.util.List;
tikhomirov@538: 
tikhomirov@588: import org.junit.Rule;
tikhomirov@534: import org.junit.Test;
tikhomirov@559: import org.tmatesoft.hg.core.HgAddRemoveCommand;
tikhomirov@559: import org.tmatesoft.hg.core.HgCatCommand;
tikhomirov@559: import org.tmatesoft.hg.core.HgChangeset;
tikhomirov@586: import org.tmatesoft.hg.core.HgCommitCommand;
tikhomirov@559: import org.tmatesoft.hg.core.HgLogCommand;
tikhomirov@586: import org.tmatesoft.hg.core.HgStatus.Kind;
tikhomirov@586: import org.tmatesoft.hg.core.HgStatusCommand;
tikhomirov@559: import org.tmatesoft.hg.core.Nodeid;
tikhomirov@559: import org.tmatesoft.hg.internal.ByteArrayChannel;
tikhomirov@591: import org.tmatesoft.hg.internal.CommitFacility;
tikhomirov@586: import org.tmatesoft.hg.internal.FileContentSupplier;
tikhomirov@591: import org.tmatesoft.hg.internal.Internals;
tikhomirov@559: import org.tmatesoft.hg.repo.HgDataFile;
tikhomirov@538: import org.tmatesoft.hg.repo.HgLookup;
tikhomirov@538: import org.tmatesoft.hg.repo.HgRepository;
tikhomirov@586: import org.tmatesoft.hg.util.Outcome;
tikhomirov@559: import org.tmatesoft.hg.util.Path;
tikhomirov@534: 
tikhomirov@534: /**
tikhomirov@559:  * Handy for debug to see patch content:
tikhomirov@559:  * ...RevlogDump /tmp/test-commit2non-empty/.hg/ store/data/file1.i dumpData
tikhomirov@534:  * 
tikhomirov@534:  * @author Artem Tikhomirov
tikhomirov@534:  * @author TMate Software Ltd.
tikhomirov@534:  */
tikhomirov@534: public class TestCommit {
tikhomirov@534: 
tikhomirov@588: 	@Rule
tikhomirov@588: 	public ErrorCollectorExt errorCollector = new ErrorCollectorExt();
tikhomirov@588: 
tikhomirov@534: 	@Test
tikhomirov@538: 	public void testCommitToNonEmpty() throws Exception {
tikhomirov@538: 		File repoLoc = RepoUtils.initEmptyTempRepo("test-commit2non-empty");
tikhomirov@559: 		RepoUtils.createFile(new File(repoLoc, "file1"), "hello\n");
tikhomirov@559: 		new ExecHelper(new OutputParser.Stub(), repoLoc).run("hg", "commit", "--addremove", "-m", "FIRST");
tikhomirov@538: 		//
tikhomirov@538: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@591: 		CommitFacility cf = new CommitFacility(Internals.getInstance(hgRepo), 0);
tikhomirov@559: 		// FIXME test diff for processing changed newlines (ie \r\n -> \n or vice verse) - if a whole line or 
tikhomirov@559: 		// just changed endings are in the patch!
tikhomirov@559: 		HgDataFile df = hgRepo.getFileNode("file1");
tikhomirov@559: 		cf.add(df, new ByteArraySupplier("hello\nworld".getBytes()));
tikhomirov@559: 		Nodeid secondRev = cf.commit("SECOND");
tikhomirov@559: 		//
tikhomirov@559: 		List<HgChangeset> commits = new HgLogCommand(hgRepo).execute();
tikhomirov@588: 		errorCollector.assertEquals(2, commits.size());
tikhomirov@559: 		HgChangeset c1 = commits.get(0);
tikhomirov@559: 		HgChangeset c2 = commits.get(1);
tikhomirov@588: 		errorCollector.assertEquals("FIRST", c1.getComment());
tikhomirov@588: 		errorCollector.assertEquals("SECOND", c2.getComment());
tikhomirov@588: 		errorCollector.assertEquals(df.getPath(), c2.getAffectedFiles().get(0));
tikhomirov@588: 		errorCollector.assertEquals(c1.getNodeid(), c2.getFirstParentRevision());
tikhomirov@588: 		errorCollector.assertEquals(Nodeid.NULL, c2.getSecondParentRevision());
tikhomirov@588: 		errorCollector.assertEquals(secondRev, c2.getNodeid());
tikhomirov@539: 	}
tikhomirov@539: 	
tikhomirov@539: 	@Test
tikhomirov@539: 	public void testCommitToEmpty() throws Exception {
tikhomirov@539: 		File repoLoc = RepoUtils.initEmptyTempRepo("test-commit2empty");
tikhomirov@559: 		String fname = "file1";
tikhomirov@559: 		RepoUtils.createFile(new File(repoLoc, fname), null);
tikhomirov@559: 		new ExecHelper(new OutputParser.Stub(), repoLoc).run("hg", "add", fname);
tikhomirov@539: 		//
tikhomirov@539: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@559: 		assertEquals("[sanity]", 0, new HgLogCommand(hgRepo).execute().size());
tikhomirov@591: 		CommitFacility cf = new CommitFacility(Internals.getInstance(hgRepo), NO_REVISION);
tikhomirov@559: 		HgDataFile df = hgRepo.getFileNode(fname);
tikhomirov@559: 		final byte[] initialContent = "hello\nworld".getBytes();
tikhomirov@559: 		cf.add(df, new ByteArraySupplier(initialContent));
tikhomirov@559: 		String comment = "commit 1";
tikhomirov@559: 		Nodeid c1Rev = cf.commit(comment);
tikhomirov@559: 		List<HgChangeset> commits = new HgLogCommand(hgRepo).execute();
tikhomirov@588: 		errorCollector.assertEquals(1, commits.size());
tikhomirov@559: 		HgChangeset c1 = commits.get(0);
tikhomirov@588: 		errorCollector.assertEquals(1, c1.getAffectedFiles().size());
tikhomirov@588: 		errorCollector.assertEquals(df.getPath(), c1.getAffectedFiles().get(0));
tikhomirov@588: 		errorCollector.assertEquals(0, c1.getRevisionIndex());
tikhomirov@588: 		errorCollector.assertEquals(Nodeid.NULL, c1.getFirstParentRevision());
tikhomirov@588: 		errorCollector.assertEquals(Nodeid.NULL, c1.getSecondParentRevision());
tikhomirov@588: 		errorCollector.assertEquals(HgRepository.DEFAULT_BRANCH_NAME, c1.getBranch());
tikhomirov@588: 		errorCollector.assertEquals(comment, c1.getComment());
tikhomirov@588: 		errorCollector.assertEquals(c1Rev, c1.getNodeid());
tikhomirov@559: 		ByteArrayChannel bac = new ByteArrayChannel();
tikhomirov@559: 		new HgCatCommand(hgRepo).file(df.getPath()).execute(bac);
tikhomirov@559: 		assertArrayEquals(initialContent, bac.toArray());
tikhomirov@559: 	}
tikhomirov@559: 	
tikhomirov@559: 	@Test
tikhomirov@559: 	public void testCommitIntoBranch() throws Exception {
tikhomirov@559: 		File repoLoc = RepoUtils.cloneRepoToTempLocation("log-1", "test-add-remove-commit", false);
tikhomirov@559: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@559: 		HgDataFile dfD = hgRepo.getFileNode("d");
tikhomirov@559: 		assertTrue("[sanity]", dfD.exists());
tikhomirov@559: 		File fileD = new File(repoLoc, "d");
tikhomirov@559: 		assertTrue("[sanity]", fileD.canRead());
tikhomirov@559: 		final int parentCsetRevIndex = hgRepo.getChangelog().getLastRevision();
tikhomirov@559: 		HgChangeset parentCset = new HgLogCommand(hgRepo).range(parentCsetRevIndex, parentCsetRevIndex).execute().get(0);
tikhomirov@559: 		assertEquals("[sanity]", DEFAULT_BRANCH_NAME, parentCset.getBranch());
tikhomirov@559: 		//
tikhomirov@559: 		RepoUtils.modifyFileAppend(fileD, "A CHANGE\n");
tikhomirov@591: 		CommitFacility cf = new CommitFacility(Internals.getInstance(hgRepo), parentCsetRevIndex);
tikhomirov@559: 		FileContentSupplier contentProvider = new FileContentSupplier(fileD);
tikhomirov@559: 		cf.add(dfD, contentProvider);
tikhomirov@559: 		cf.branch("branch1");
tikhomirov@559: 		Nodeid commitRev1 = cf.commit("FIRST");
tikhomirov@559: 		contentProvider.done();
tikhomirov@559: 		//
tikhomirov@559: 		List<HgChangeset> commits = new HgLogCommand(hgRepo).range(parentCsetRevIndex+1, TIP).execute();
tikhomirov@559: 		assertEquals(1, commits.size());
tikhomirov@559: 		HgChangeset c1 = commits.get(0);
tikhomirov@588: 		errorCollector.assertEquals(c1.getNodeid(), commitRev1);
tikhomirov@588: 		errorCollector.assertEquals("branch1", c1.getBranch());
tikhomirov@588: 		errorCollector.assertEquals("FIRST", c1.getComment());
tikhomirov@559: 		//
tikhomirov@559: 		assertHgVerifyOk(repoLoc);
tikhomirov@559: 	}
tikhomirov@559: 
tikhomirov@559: 	/**
tikhomirov@559: 	 * use own add and remove commands and then commit
tikhomirov@559: 	 */
tikhomirov@559: 	@Test
tikhomirov@559: 	public void testCommitWithAddRemove() throws Exception {
tikhomirov@559: 		File repoLoc = RepoUtils.cloneRepoToTempLocation("log-1", "test-add-remove-commit", false);
tikhomirov@559: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@559: 		assertTrue("[sanity]", hgRepo.getFileNode("d").exists());
tikhomirov@559: 		assertTrue("[sanity]", new File(repoLoc, "d").canRead());
tikhomirov@559: 		RepoUtils.createFile(new File(repoLoc, "xx"), "xyz");
tikhomirov@559: 		new HgAddRemoveCommand(hgRepo).add(Path.create("xx")).remove(Path.create("d")).execute();
tikhomirov@591: 		CommitFacility cf = new CommitFacility(Internals.getInstance(hgRepo), hgRepo.getChangelog().getLastRevision());
tikhomirov@559: 		FileContentSupplier contentProvider = new FileContentSupplier(new File(repoLoc, "xx"));
tikhomirov@559: 		cf.add(hgRepo.getFileNode("xx"), contentProvider);
tikhomirov@559: 		cf.forget(hgRepo.getFileNode("d"));
tikhomirov@559: 		Nodeid commitRev = cf.commit("Commit with add/remove cmd");
tikhomirov@559: 		contentProvider.done();
tikhomirov@559: 		// Note, working directory still points to original revision, CommitFacility doesn't update dirstate
tikhomirov@559: 		//
tikhomirov@559: 		List<HgChangeset> commits = new HgLogCommand(hgRepo).changeset(commitRev).execute();
tikhomirov@559: 		HgChangeset cmt = commits.get(0);
tikhomirov@588: 		errorCollector.assertEquals(1, cmt.getAddedFiles().size());
tikhomirov@588: 		errorCollector.assertEquals("xx", cmt.getAddedFiles().get(0).getPath().toString());
tikhomirov@588: 		errorCollector.assertEquals(1, cmt.getRemovedFiles().size());
tikhomirov@588: 		errorCollector.assertEquals("d", cmt.getRemovedFiles().get(0).toString());
tikhomirov@559: 		ByteArrayChannel sink = new ByteArrayChannel();
tikhomirov@559: 		new HgCatCommand(hgRepo).file(Path.create("xx")).changeset(commitRev).execute(sink);
tikhomirov@559: 		assertArrayEquals("xyz".getBytes(), sink.toArray());
tikhomirov@559: 		//
tikhomirov@559: 		assertHgVerifyOk(repoLoc);
tikhomirov@559: 	}
tikhomirov@559: 	/**
tikhomirov@559: 	 * perform few commits one by one, into different branches
tikhomirov@559: 	 */
tikhomirov@559: 	@Test
tikhomirov@559: 	public void testSequentialCommits() throws Exception {
tikhomirov@559: 		File repoLoc = RepoUtils.cloneRepoToTempLocation("log-1", "test-add-remove-commit", false);
tikhomirov@559: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@559: 		HgDataFile dfD = hgRepo.getFileNode("d");
tikhomirov@559: 		assertTrue("[sanity]", dfD.exists());
tikhomirov@559: 		File fileD = new File(repoLoc, "d");
tikhomirov@559: 		assertTrue("[sanity]", fileD.canRead());
tikhomirov@559: 		//
tikhomirov@559: 		RepoUtils.modifyFileAppend(fileD, " 1 \n");
tikhomirov@559: 		final int parentCsetRevIndex = hgRepo.getChangelog().getLastRevision();
tikhomirov@591: 		CommitFacility cf = new CommitFacility(Internals.getInstance(hgRepo), parentCsetRevIndex);
tikhomirov@559: 		FileContentSupplier contentProvider = new FileContentSupplier(fileD);
tikhomirov@559: 		cf.add(dfD, contentProvider);
tikhomirov@559: 		cf.branch("branch1");
tikhomirov@559: 		Nodeid commitRev1 = cf.commit("FIRST");
tikhomirov@559: 		contentProvider.done();
tikhomirov@559: 		//
tikhomirov@559: 		RepoUtils.modifyFileAppend(fileD, " 2 \n");
tikhomirov@559: 		cf.add(dfD, contentProvider = new FileContentSupplier(fileD));
tikhomirov@559: 		cf.branch("branch2");
tikhomirov@559: 		Nodeid commitRev2 = cf.commit("SECOND");
tikhomirov@559: 		contentProvider.done();
tikhomirov@559: 		//
tikhomirov@559: 		RepoUtils.modifyFileAppend(fileD, " 2 \n");
tikhomirov@559: 		cf.add(dfD, contentProvider = new FileContentSupplier(fileD));
tikhomirov@559: 		cf.branch(DEFAULT_BRANCH_NAME);
tikhomirov@559: 		Nodeid commitRev3 = cf.commit("THIRD");
tikhomirov@559: 		contentProvider.done();
tikhomirov@559: 		//
tikhomirov@559: 		List<HgChangeset> commits = new HgLogCommand(hgRepo).range(parentCsetRevIndex+1, TIP).execute();
tikhomirov@559: 		assertEquals(3, commits.size());
tikhomirov@559: 		HgChangeset c1 = commits.get(0);
tikhomirov@559: 		HgChangeset c2 = commits.get(1);
tikhomirov@559: 		HgChangeset c3 = commits.get(2);
tikhomirov@588: 		errorCollector.assertEquals(c1.getNodeid(), commitRev1);
tikhomirov@588: 		errorCollector.assertEquals(c2.getNodeid(), commitRev2);
tikhomirov@588: 		errorCollector.assertEquals(c3.getNodeid(), commitRev3);
tikhomirov@588: 		errorCollector.assertEquals("branch1", c1.getBranch());
tikhomirov@588: 		errorCollector.assertEquals("branch2", c2.getBranch());
tikhomirov@588: 		errorCollector.assertEquals(DEFAULT_BRANCH_NAME, c3.getBranch());
tikhomirov@588: 		errorCollector.assertEquals("FIRST", c1.getComment());
tikhomirov@588: 		errorCollector.assertEquals("SECOND", c2.getComment());
tikhomirov@588: 		errorCollector.assertEquals("THIRD", c3.getComment());
tikhomirov@559: 		assertHgVerifyOk(repoLoc);
tikhomirov@559: 	}
tikhomirov@559: 	
tikhomirov@586: 	@Test
tikhomirov@586: 	public void testCommandBasics() throws Exception {
tikhomirov@586: 		File repoLoc = RepoUtils.cloneRepoToTempLocation("log-1", "test-commit-cmd", false);
tikhomirov@586: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@586: 		HgDataFile dfB = hgRepo.getFileNode("b");
tikhomirov@586: 		assertTrue("[sanity]", dfB.exists());
tikhomirov@586: 		File fileB = new File(repoLoc, "b");
tikhomirov@586: 		assertTrue("[sanity]", fileB.canRead());
tikhomirov@586: 		RepoUtils.modifyFileAppend(fileB, " 1 \n");
tikhomirov@586: 
tikhomirov@586: 		HgCommitCommand cmd = new HgCommitCommand(hgRepo);
tikhomirov@586: 		assertFalse(cmd.isMergeCommit());
tikhomirov@586: 		Outcome r = cmd.message("FIRST").execute();
tikhomirov@588: 		errorCollector.assertTrue(r.isOk());
tikhomirov@586: 		Nodeid c1 = cmd.getCommittedRevision();
tikhomirov@586: 		
tikhomirov@588: 		// check that modified files are no longer reported as such
tikhomirov@586: 		TestStatus.StatusCollector status = new TestStatus.StatusCollector();
tikhomirov@588: 		new HgStatusCommand(hgRepo).all().execute(status);
tikhomirov@588: 		errorCollector.assertTrue(status.getErrors().isEmpty());
tikhomirov@588: 		errorCollector.assertTrue(status.get(Kind.Modified).isEmpty());
tikhomirov@588: 		errorCollector.assertEquals(1, status.get(dfB.getPath()).size());
tikhomirov@588: 		errorCollector.assertTrue(status.get(dfB.getPath()).contains(Kind.Clean));
tikhomirov@586: 		
tikhomirov@586: 		HgDataFile dfD = hgRepo.getFileNode("d");
tikhomirov@586: 		assertTrue("[sanity]", dfD.exists());
tikhomirov@586: 		File fileD = new File(repoLoc, "d");
tikhomirov@586: 		assertTrue("[sanity]", fileD.canRead());
tikhomirov@586: 		//
tikhomirov@586: 		RepoUtils.modifyFileAppend(fileD, " 1 \n");
tikhomirov@586: 		cmd = new HgCommitCommand(hgRepo);
tikhomirov@586: 		assertFalse(cmd.isMergeCommit());
tikhomirov@586: 		r = cmd.message("SECOND").execute();
tikhomirov@588: 		errorCollector.assertTrue(r.isOk());
tikhomirov@586: 		Nodeid c2 = cmd.getCommittedRevision();
tikhomirov@586: 		//
tikhomirov@586: 		int lastRev = hgRepo.getChangelog().getLastRevision();
tikhomirov@586: 		List<HgChangeset> csets = new HgLogCommand(hgRepo).range(lastRev-1, lastRev).execute();
tikhomirov@588: 		errorCollector.assertEquals(csets.get(0).getNodeid(), c1);
tikhomirov@588: 		errorCollector.assertEquals(csets.get(1).getNodeid(), c2);
tikhomirov@588: 		errorCollector.assertEquals(csets.get(0).getComment(), "FIRST");
tikhomirov@588: 		errorCollector.assertEquals(csets.get(1).getComment(), "SECOND");
tikhomirov@586: 		assertHgVerifyOk(repoLoc);
tikhomirov@586: 	}
tikhomirov@586: 	
tikhomirov@605: 	@Test
tikhomirov@605: 	public void testUpdateActiveBookmark() throws Exception {
tikhomirov@605: 		File repoLoc = RepoUtils.cloneRepoToTempLocation("log-1", "test-commit-cmd", false);
tikhomirov@605: 		ExecHelper eh = new ExecHelper(new OutputParser.Stub(), repoLoc);
tikhomirov@605: 		String activeBookmark = "bm1";
tikhomirov@605: 		eh.run("hg", "bookmarks", activeBookmark);
tikhomirov@605: 
tikhomirov@605: 		HgRepository hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@605: 		assertEquals("[sanity]", activeBookmark, hgRepo.getBookmarks().getActiveBookmarkName());
tikhomirov@605: 		Nodeid activeBookmarkRevision = hgRepo.getBookmarks().getRevision(activeBookmark);
tikhomirov@605: 		assertEquals("[sanity]", activeBookmarkRevision, hgRepo.getWorkingCopyParents().first());
tikhomirov@605: 		
tikhomirov@605: 		HgDataFile dfD = hgRepo.getFileNode("d");
tikhomirov@605: 		File fileD = new File(repoLoc, "d");
tikhomirov@605: 		assertTrue("[sanity]", dfD.exists());
tikhomirov@605: 		assertTrue("[sanity]", fileD.canRead());
tikhomirov@605: 
tikhomirov@605: 		RepoUtils.modifyFileAppend(fileD, " 1 \n");
tikhomirov@605: 		HgCommitCommand cmd = new HgCommitCommand(hgRepo).message("FIRST");
tikhomirov@605: 		Outcome r = cmd.execute();
tikhomirov@605: 		errorCollector.assertTrue(r.isOk());
tikhomirov@605: 		Nodeid c = cmd.getCommittedRevision();
tikhomirov@605: 		
tikhomirov@605: 		errorCollector.assertEquals(activeBookmark, hgRepo.getBookmarks().getActiveBookmarkName());
tikhomirov@605: 		errorCollector.assertEquals(c, hgRepo.getBookmarks().getRevision(activeBookmark));
tikhomirov@605: 		// reload repo, and repeat the check
tikhomirov@605: 		hgRepo = new HgLookup().detect(repoLoc);
tikhomirov@605: 		errorCollector.assertEquals(activeBookmark, hgRepo.getBookmarks().getActiveBookmarkName());
tikhomirov@605: 		errorCollector.assertEquals(c, hgRepo.getBookmarks().getRevision(activeBookmark));
tikhomirov@605: 	}
tikhomirov@605: 	
tikhomirov@559: 	private void assertHgVerifyOk(File repoLoc) throws InterruptedException, IOException {
tikhomirov@559: 		ExecHelper verifyRun = new ExecHelper(new OutputParser.Stub(), repoLoc);
tikhomirov@559: 		verifyRun.run("hg", "verify");
tikhomirov@588: 		errorCollector.assertEquals("hg verify", 0, verifyRun.getExitValue());
tikhomirov@538: 	}
tikhomirov@539: 
tikhomirov@538: 	public static void main(String[] args) throws Exception {
tikhomirov@539: 		new TestCommit().testCommitToEmpty();
tikhomirov@539: 		if (Boolean.TRUE.booleanValue()) {
tikhomirov@539: 			return;
tikhomirov@539: 		}
tikhomirov@538: 		String input = "abcdefghijklmnopqrstuvwxyz";
tikhomirov@538: 		ByteArraySupplier bas = new ByteArraySupplier(input.getBytes());
tikhomirov@538: 		ByteBuffer bb = ByteBuffer.allocate(7);
tikhomirov@538: 		byte[] result = new byte[26];
tikhomirov@538: 		int rpos = 0;
tikhomirov@538: 		while (bas.read(bb) != -1) {
tikhomirov@538: 			bb.flip();
tikhomirov@538: 			bb.get(result, rpos, bb.limit());
tikhomirov@538: 			rpos += bb.limit();
tikhomirov@538: 			bb.clear();
tikhomirov@538: 		}
tikhomirov@538: 		if (input.length() != rpos) {
tikhomirov@538: 			throw new AssertionError();
tikhomirov@538: 		}
tikhomirov@538: 		String output = new String(result);
tikhomirov@538: 		if (!input.equals(output)) {
tikhomirov@538: 			throw new AssertionError();
tikhomirov@538: 		}
tikhomirov@538: 		System.out.println(output);
tikhomirov@538: 	}
tikhomirov@538: 
tikhomirov@538: 	static class ByteArraySupplier implements CommitFacility.ByteDataSupplier {
tikhomirov@538: 
tikhomirov@538: 		private final byte[] data;
tikhomirov@538: 		private int pos = 0;
tikhomirov@538: 
tikhomirov@538: 		public ByteArraySupplier(byte[] source) {
tikhomirov@538: 			data = source;
tikhomirov@538: 		}
tikhomirov@538: 
tikhomirov@538: 		public int read(ByteBuffer buf) {
tikhomirov@538: 			if (pos >= data.length) {
tikhomirov@538: 				return -1;
tikhomirov@538: 			}
tikhomirov@538: 			int count = Math.min(buf.remaining(), data.length - pos);
tikhomirov@538: 			buf.put(data, pos, count);
tikhomirov@538: 			pos += count;
tikhomirov@538: 			return count;
tikhomirov@538: 		}
tikhomirov@534: 	}
tikhomirov@534: }