The modern virtual environment structure does not allow us to enable
"fake user site" while disabling the global site, so we need to do more
fine-grained configuration to correctly set up test environments for
each test case.
With this done, we can also properly support the stdlib venv ad the test
environment backend, since it basically works identically with modern
virtualenv. The incompatible_with_test_venv is thus removed.
use site.getsitepackages() where available
instead of just purelib/platlib,
which is often insufficient on e.g. System Pythons for Debian/macOS
handle virtualenv < 20 overwriting site.py without getsitepackages() by preserving current behavior.
See #11276
SearchScope was extended with an extra parameter to be able to pass-on the
value of no_index as we do with the other parameters. This allows us to respect
its value regardless of the order in which options are evaluated.
The pip-specific Path implementation has been removed, and all its
usages replaced by pathlib.Path. The tmpdir and tmpdir_factory fixtures
are also removed, and all usages are replaced by tmp_path and
tmp_path_factory, which use pathlib.Path.
The pip() function now also accepts pathlib.Path so we don't need to put
str() everywhere. Path arguments are coerced with os.fspath() into str.
There is no mechanism provided for build requirements to have extras.
It should be acceptable to enforce that any "optional" packages
that are supposed to be conditionally installed based on the presence of
an extra should not be installed in a build environment.
The html5lib library isn't strictly required as the same functionality
can be achieved through the stdlib html.parser module.
The html5lib is one of the largest uses of the six library. By dropping
this unnecessary dependency, the pip project is closer to dropping the
six library.
Additionally, html5lib maintenance has slowed down and the project has
rejected pull requests to drop Python 2 support.
For now, the html5lib code remains, but is gated behind a command
line option: `--use-deprecated=html5lib`. After a sufficient amount of
time has passed without any reported bugs, the vendored library and this
flag can be removed completely.
These tests use the script fixture which as a 30s setup time on my
machine. This KILLS productivity when trying to run unit tests as part
of a feedback loop during development.
2020-10-25 23:32:26 +05:30
Renamed from tests/unit/test_build_env.py (Browse further)
