ENH Add rename_fixture and standalone decorators

[hoodmane]

We use a bunch of different selenium variants but for the most part they are drop-in replacements for each other. For instance, when using selenium_standalone, we always just say selenium = selenium_standalone at the top of the function. I think it's clearer if we use a decorator to rename the fixture.

[ryanking13]

Thanks @hoomane! We have some logic for modifying the test order when standalone fixtures are used in the Safari browser. Could you check if it works well with rename_fixture?

pytest-pyodide/pytest_pyodide/hook.py

Lines 193 to 212 in 05f95eb

	standalone_fixtures = [
	"selenium_standalone",
	"selenium_standalone_noload",
	"selenium_webworker_standalone",
	]
	def _has_standalone_fixture(fixturenames):
	for fixture in fixturenames:
	if fixture in standalone_fixtures:
	return True
	return False
	def _get_item_position(item):
	counter[0] += 1
	if any(
	[re.match(r"^safari[\-$]?", el) for el in item.keywords._markers.keys()]
	) and _has_standalone_fixture(item._request.fixturenames):
	return counter[0] - OFFSET
	return counter[0]

different selenium variants

BTW, we have both selenium and playwright runners so I think someday we need to change the fixture name.

[hoodmane]

Sure. It should work fine with everything since the rename happens right away in the decorator nothing has the opportunity to see the original function,

[ryanking13]

Thanks for the check!

There are some CI failures, but I think those are not relevant to this PR (some are about hypothesis, and some are about playwright)...