/*
 * Copyright (C) 2009, Google Inc.
 *
 * 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 Git Development Community 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
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.spearce.jgit.revwalk;

public abstract class RevQueueTestCase<T extends AbstractRevQueue> extends
		RevWalkTestCase {
	protected T q;

	public void setUp() throws Exception {
		super.setUp();
		q = create();
	}

	protected abstract T create();

	public void testEmpty() throws Exception {
		assertNull(q.next());
		assertTrue(q.everbodyHasFlag(RevWalk.UNINTERESTING));
		assertFalse(q.anybodyHasFlag(RevWalk.UNINTERESTING));
	}

	public void testClear() throws Exception {
		final RevCommit a = parse(commit());
		final RevCommit b = parse(commit(a));

		q.add(a);
		q.add(b);
		q.clear();
		assertNull(q.next());
	}

	public void testHasFlags() throws Exception {
		final RevCommit a = parse(commit());
		final RevCommit b = parse(commit(a));

		q.add(a);
		q.add(b);

		assertFalse(q.everbodyHasFlag(RevWalk.UNINTERESTING));
		assertFalse(q.anybodyHasFlag(RevWalk.UNINTERESTING));

		a.flags |= RevWalk.UNINTERESTING;
		assertFalse(q.everbodyHasFlag(RevWalk.UNINTERESTING));
		assertTrue(q.anybodyHasFlag(RevWalk.UNINTERESTING));

		b.flags |= RevWalk.UNINTERESTING;
		assertTrue(q.everbodyHasFlag(RevWalk.UNINTERESTING));
		assertTrue(q.anybodyHasFlag(RevWalk.UNINTERESTING));
	}
}