def test_copy(self):
pq1 = PQDict(self.items)
pq2 = pq1.copy()
# equality by value
self.assertEqual(pq1, pq2)
dkey = random.choice(self.dkeys)
pq2[dkey] += 1
self.assertNotEqual(pq1[dkey], pq2[dkey])
self.assertNotEqual(pq1, pq2)
def test_keys(self):
# the "keys" are dictionary keys
pq = PQDict(self.items)
self.assertEqual(sorted(self.dkeys), sorted(pq.keys()))
self.assertEqual(sorted(self.pkeys), [pq[dkey] for dkey in pq.copy().iterkeys()])
