Python types have reference cycles to themselves when they are created. This is
partially caused by descriptors which get / set values from the __dict__
attribute for getattr / setattr on classes.
This is not normally an issue since types tend to remain referenced for the
lifetime of the Python process (and thus never become garbage).
However, in the case of PseudoFixtureDef, the class is generated in
_get_active_fixturedef and later discarded when pytest_fixture_setup returns.
As a result, the generated PseudoFixtureDef type becomes garbage.
This is not really a performance issue but it can lead to some problems when
making tests and assertions about garbage when using pytest.
This garbage creation problem can be rectified by returning a namedtuple
instance which is functionally the same. In the modified code, the namedtuple
is allocated / deallocated using reference counting rather than having to use
the garbage collector.
When a test with pytest.raises(ValueError, match='foo') doesn't raise, the
following error is printed:
Failed: DID NOT RAISE <class 'ValueError'> matching 'foo'
This error message is confusing as it implies a ValueError was raised, but the
message wasn't matching 'foo'.
I first considered rewording it somehow to preserve the match pattern in it, but
I don't think that's worthwhile as the pattern should usually be apparent from
the stacktrace anyways (hard-coded, as parametrization, or with --showlocals for
more sophisticated cases).
While updating the docs I noticed that caplog.get_handler() exposes
the underlying Handler object, which I think it is a bit too much
detail at this stage. Update to return the records directly instead.
The current behavior was too error-prone because a "-o" option would
swallow all the following non-option parameters:
pytest -o foo=bar path/to/test.py
path/to/test.py would be captured by the -o option, and would fail
because "path/to/test.py" is not in the format "key=value".
update incorrect expected attribute value in test_record_attribute
attr names must be strings
Update CHANGELOG formatting
update usage documentation
Fix versionadded for record_xml_attribute
Indent the xml schema properly inside the warning box in the docs
Bruno Oliveira
Allan Feldman
mike
Jason R. Coombs
Florian Bruhin
Brian Maissy
Marcin Bachry
Andy Freeland
Pedro Algarvio
Ronny Pfannschmidt
Aaron
Alan Velasco
Thomas Hisch
Andrew Toolan
Raphael Castaneda