public void LookupChangeTest()
{
LoadChangeSetXml(true);
ChangesetStorage storage = new ChangesetStorage(Filename);
CvsChange change = CreateSingleChange("test.ext", 0, "Update to TK-01001");
storage = new ChangesetStorage(Filename);
CvsChange foundChange = storage.LookupChange(change);
Assert.IsNotNull(foundChange);
Assert.AreEqual(foundChange, change);
foundChange = storage.LookupChange(CreateSingleChange("test.ext", 0, "ttt"));
Assert.IsNull(foundChange);
}