org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/AlwaysEmptyRevQueueTest.java

/*
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package org.eclipse.jgit.revwalk;

public class AlwaysEmptyRevQueueTest extends RevWalkTestCase {
	private final AbstractRevQueue q = AbstractRevQueue.EMPTY_QUEUE;

	public void testEmpty() throws Exception {
		assertNull(q.next());
		assertTrue(q.everbodyHasFlag(RevWalk.UNINTERESTING));
		assertFalse(q.anybodyHasFlag(RevWalk.UNINTERESTING));
		assertEquals(0, q.outputType());
	}

	public void testClear() throws Exception {
		q.clear();
		testEmpty();
	}

	public void testAddFails() throws Exception {
		try {
			q.add(commit());
			fail("Did not throw UnsupportedOperationException");
		} catch (UnsupportedOperationException e) {
			// expected result
		}
	}
}