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  package org.eclipse.jgit.revwalk;
  
  import static org.junit.Assert.assertSame;
  
  import java.util.Date;
  
  import org.eclipse.jgit.dircache.DirCacheEntry;
  import org.eclipse.jgit.junit.RepositoryTestCase;
  import org.eclipse.jgit.junit.TestRepository;
  import org.eclipse.jgit.junit.TestRepository.CommitBuilder;
  import org.eclipse.jgit.lib.Repository;
  
  /** Support for tests of the {@link RevWalk} class. */
  public abstract class RevWalkTestCase extends RepositoryTestCase {
  	private TestRepository<Repository> util;
  
  	protected RevWalk rw;
  
  	@Override
  	public void setUp() throws Exception {
  		super.setUp();
  		util = new TestRepository<Repository>(db, createRevWalk());
  		rw = util.getRevWalk();
  	}
  
  	protected RevWalk createRevWalk() {
  		return new RevWalk(db);
  	}
  
  	protected Date getDate() {
  		return util.getDate();
  	}
  
  	protected void tick(final int secDelta) {
  		util.tick(secDelta);
  	}
  
  	protected RevBlob blob(final String content) throws Exception {
  		return util.blob(content);
  	}
  
  	protected DirCacheEntry file(final String path, final RevBlob blob)
  			throws Exception {
  		return util.file(path, blob);
  	}
  
  	protected RevTree tree(final DirCacheEntry... entries) throws Exception {
  		return util.tree(entries);
  	}
  
  	protected RevObject get(final RevTree tree, final String path)
  			throws Exception {
  		return util.get(tree, path);
  	}
  
  	protected RevCommit commit(final RevCommit... parents) throws Exception {
 		return util.commit(parents);
 	}
 
 	protected RevCommit commit(final RevTree tree, final RevCommit... parents)
 			throws Exception {
 		return util.commit(tree, parents);
 	}
 
 	protected RevCommit commit(final int secDelta, final RevCommit... parents)
 			throws Exception {
 		return util.commit(secDelta, parents);
 	}
 
 	protected RevCommit commit(final int secDelta, final RevTree tree,
 			final RevCommit... parents) throws Exception {
 		return util.commit(secDelta, tree, parents);
 	}
 
 	protected RevTag tag(final String name, final RevObject dst)
 			throws Exception {
 		return util.tag(name, dst);
 	}
 
 	protected CommitBuilder commitBuilder()
 			throws Exception {
 		return util.commit();
 	}
 
 	protected <T extends RevObject> T parseBody(final T t) throws Exception {
 		return util.parseBody(t);
 	}
 
 	protected void markStart(final RevCommit commit) throws Exception {
 		rw.markStart(commit);
 	}
 
 	protected void markUninteresting(final RevCommit commit) throws Exception {
 		rw.markUninteresting(commit);
 	}
 
 	protected void assertCommit(final RevCommit exp, final RevCommit act) {
 		assertSame(exp, act);
 	}
 }