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Ran 13 Dec 2017 10:01PM UTC

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Committed 13 Dec 2017 09:57PM UTC coverage: 92.585% (-0.003%) from 92.588%

Job # TOXENV=coveralls

Build Type

Pull #3030

travis-ci

Committed by

web-flow

Commit Message

Fix memory leak caused by fixture values never been garbage collected

The leak was caused by the (unused) `FixtureRequest._fixture_values`
cache.

This was introduced because the `partial` object (created to call
FixtureDef.finish() bound with the Request) is kept alive
through the entire session when a function-scoped fixture depends
on a session-scoped (or higher) fixture because of the nested
`addfinalizer` calls.

FixtureDef.finish() started receiving a request object in order to
obtain the proper hook proxy object (#2127), but this does not seem
useful at all in practice because `pytest_fixture_post_finalizer`
will be called with the `request` object of the moment the fixture value
was *created*, not the request object active when the fixture value
is being destroyed. We should probably deprecate/remove the request
parameter from `pytest_fixture_post_finalizer`.

Fix #2981

Pull Request Pull Request #3030: Fix memory leak caused by fixture values never been garbage collected

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