def testPFN(self):
"Should be able to add/remove/has PFNs"
c = CatalogType("name")
p = PFN("url", "site")
self.assertFalse(c.hasPFN(p))
c.addPFN(p)
self.assertRaises(DuplicateError, c.addPFN, p)
self.assertTrue(c.hasPFN(p))
c.removePFN(p)
self.assertFalse(c.hasPFN(p))
self.assertRaises(NotFoundError, c.removePFN, p)
c.addPFN(p)
c.clearPFNs()
self.assertFalse(c.hasPFN(p))
