def test_contextmanager(self):
"""
Covers context manager interface.
"""
with Context(self) as ctx:
self.assertIs(ctx, Context.top())
with Context(self) as ctx2:
self.assertIsNot(ctx2, ctx)
self.assertIs(ctx2, Context.top())
self.assertIs(ctx, Context.top())
def test_push_pop(self):
"""
Covers Context.push(), Context.pop(), Context.top()
"""
ctx = Context(self)
Context.push(ctx)
self.assertIs(ctx, Context.top())
Context.pop(ctx)
