1724273 - Allow associating python-tests with command virtualenvs

Status: NEW

(Firefox Build System :: Mach Core, enhancement, P2)

Description

[Mitchell Hentges [:mhentges] 🦀]

For example, if I'm writing a test for code that imports zstandard, then my test environment will need to have zstandard installed, in addition to my test-specific dependencies (pytest, etc).

I think the solution here is to:

• Allow defining command-virtualenv in python.ini for test files.
• When a test file is run and it has a command-virtualenv defined, it'll use the python-test-$command virtualenv, which contains both the command's dependencies in addition to test dependencies
• When a test file is run that doesn't have command-virtualenv defined, it'll use the python-test virtualenv, which contains only test dependencies.

Comment 1

[Mitchell Hentges [:mhentges] 🦀]

An example of this being needed is for the mozproxy/tests/test_command_line.py tests, which tries to install the dependencies of mozinfo, mozlog and mozproxy (using their old, potentially out-of-date setup.py files).