async def test_unshift_works(self):
oaq = aggregates.ObservableAsyncQueue()
await oaq.put("9")
await oaq.put("18")
await oaq.put("27")
await oaq.put("36")
await oaq.unshift("0")
self.assertListEqual(["0", "9", "18", "27", "36"], list(oaq.view))
async def test_getter_does_cache(self):
oaq = aggregates.ObservableAsyncQueue()
await oaq.put("9")
await oaq.put("18")
await oaq.put("27")
await oaq.put("36")
view1 = oaq.view
view2 = oaq.view
self.assertIs(view1, view2)
async def test_putter_does_uncache(self):
oaq = aggregates.ObservableAsyncQueue()
await oaq.put("9")
await oaq.put("18")
await oaq.put("27")
await oaq.put("36")
view1 = oaq.view
await oaq.put("45")
view2 = oaq.view
self.assertNotEqual(view1, view2)
async def test_getitem_uses_view(self):
oaq = aggregates.ObservableAsyncQueue()
await oaq.put("9")
await oaq.put("18")
await oaq.put("27")
await oaq.put("36")
view = oaq.view
view.append("0")
self.assertEqual("0", oaq[4])
async def test_pop_works(self):
oaq = aggregates.ObservableAsyncQueue()
await oaq.put("9")
await oaq.put("18")
await oaq.put("27")
await oaq.put("36")
self.assertEqual("36", await oaq.pop())
self.assertEqual("27", await oaq.pop())
self.assertEqual("18", await oaq.pop())
self.assertEqual("9", await oaq.pop())
with self.assertRaises(IndexError):
await oaq.pop()
async def test_view_is_shallow_copy(self):
oaq = aggregates.ObservableAsyncQueue()
await oaq.put("9")
await oaq.put("18")
await oaq.put("27")
await oaq.put("36")
view = oaq.view
self.assertListEqual(list(view), list(oaq._queue))
self.assertEqual(view, oaq._queue)
self.assertIsNot(view, oaq._queue)
# Shallow copy should use the same inner refs. If they are not equal though,
# we know that the order is messed up or items are not copied over right, as opposed
# to it being a messed up shallow-copy issue.
self.assertEqual(list(view)[2], list(oaq._queue)[2])
self.assertIs(list(view)[2], list(oaq._queue)[2])