make it trivial to use a context as a fixture

[Sean Dague]

There are many times where we need to run a test within a context, however doing so means that the addCleanup functions will actually execute outside that context. While it is possible to build a wrapper to turn a context into a fixture, it would be really great to have fixtures have a bullet proof way of using a context directly as a fixture to make this simpler for test writers.

Tripped over this when using the oslo lockutils in tempest to synchronize aggregates tests.

[Robert Collins (lifeless)]

Sorry, I can't quite make heads or tails of that.

Do you mean:

"I want to be able to use a Fixture as a context manager" ? If so - you can e.g.:

with EnvironmentFixture("Foo"):
    do_stuff_here()

Or do you mean you have a context manager 'mgr' and you want to use that as a fixture - like

self.useFixture(ContextFixture(mgr)) ? # ContextFixture is made up