(self)
| 787 | class TestOneTrickPonyABCs(ABCTestCase): |
| 788 | |
| 789 | def test_Awaitable(self): |
| 790 | def gen(): |
| 791 | yield |
| 792 | |
| 793 | @types.coroutine |
| 794 | def coro(): |
| 795 | yield |
| 796 | |
| 797 | async def new_coro(): |
| 798 | pass |
| 799 | |
| 800 | class Bar: |
| 801 | def __await__(self): |
| 802 | yield |
| 803 | |
| 804 | class MinimalCoro(Coroutine): |
| 805 | def send(self, value): |
| 806 | return value |
| 807 | def throw(self, typ, val=None, tb=None): |
| 808 | super().throw(typ, val, tb) |
| 809 | def __await__(self): |
| 810 | yield |
| 811 | |
| 812 | self.validate_abstract_methods(Awaitable, '__await__') |
| 813 | |
| 814 | non_samples = [None, int(), gen(), object()] |
| 815 | for x in non_samples: |
| 816 | self.assertNotIsInstance(x, Awaitable) |
| 817 | self.assertNotIsSubclass(type(x), Awaitable) |
| 818 | |
| 819 | samples = [Bar(), MinimalCoro()] |
| 820 | for x in samples: |
| 821 | self.assertIsInstance(x, Awaitable) |
| 822 | self.assertIsSubclass(type(x), Awaitable) |
| 823 | |
| 824 | c = coro() |
| 825 | # Iterable coroutines (generators with CO_ITERABLE_COROUTINE |
| 826 | # flag don't have '__await__' method, hence can't be instances |
| 827 | # of Awaitable. Use inspect.isawaitable to detect them. |
| 828 | self.assertNotIsInstance(c, Awaitable) |
| 829 | |
| 830 | c = new_coro() |
| 831 | self.assertIsInstance(c, Awaitable) |
| 832 | c.close() # avoid RuntimeWarning that coro() was not awaited |
| 833 | |
| 834 | class CoroLike: pass |
| 835 | Coroutine.register(CoroLike) |
| 836 | self.assertIsInstance(CoroLike(), Awaitable) |
| 837 | self.assertIsSubclass(CoroLike, Awaitable) |
| 838 | CoroLike = None |
| 839 | support.gc_collect() # Kill CoroLike to clean-up ABCMeta cache |
| 840 | |
| 841 | def test_Coroutine(self): |
| 842 | def gen(): |
nothing calls this directly
no test coverage detected