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In tests, get sys.exec_prefix from the resolved executable

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The previous version (resolving the exec_prefix) no longer works for me.

Also, apparently my current environment is different in tests
(it is the "absolutely current" now),
so I've adapted test_noquiet_installed_packages.

Not very sure about what has changed, but this has been always fragile.
This commit is contained in:
Miro Hrončok 2020-11-03 12:45:13 +01:00
parent b35f8832a9
commit 338d03ac22
1 changed files with 13 additions and 6 deletions
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19
tests/test_integration.py
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@ -15,12 +15,20 @@ import pytest
NATIVE_TOXENV = f"py{sys.version_info[0]}{sys.version_info[1]}"
NATIVE_EXECUTABLE = str(pathlib.Path(sys.executable).resolve())
NATIVE_EXEC_PREFIX = str(pathlib.Path(sys.exec_prefix).resolve())
NATIVE_EXEC_PREFIX_MSG = f"{NATIVE_EXEC_PREFIX} is the exec_prefix"
FIXTURES_DIR = pathlib.Path(__file__).parent / "fixtures"
DOT_TOX = pathlib.Path("./.tox")
def _exec_prefix(executable):
"""Returns sys.exec_prefix for the given executable"""
cmd = (executable, "-c", "import sys; print(sys.exec_prefix)")
return subprocess.check_output(cmd, encoding="utf-8").strip()
NATIVE_EXEC_PREFIX = _exec_prefix(NATIVE_EXECUTABLE)
NATIVE_EXEC_PREFIX_MSG = f"{NATIVE_EXEC_PREFIX} is the exec_prefix"
@pytest.fixture(autouse=True)
def projdir(tmp_path, monkeypatch):
pwd = tmp_path / "projdir"
@ -524,7 +532,7 @@ def test_noquiet_installed_packages(flag):
# default tox produces output sorted by package names
assert packages == sorted(
packages, key=lambda p: p.partition("==")[0].partition(" @ ")[0]
packages, key=lambda p: p.partition("==")[0].partition(" @ ")[0].lower()
)
# without a flag, the output must match tox defaults
@ -534,8 +542,7 @@ def test_noquiet_installed_packages(flag):
assert packages[1].startswith("six==")
assert packages[2].startswith(("test==", "test @ ")) # old and new pip
# with our flags, uses the current environment by default, hence has tox, pytest
# with our flags, uses the absolutely current environment by default, hence has tox
else:
assert f"tox=={TOX_VERSION}" in packages
assert len([p for p in packages if p.startswith("pytest==")]) == 1
assert len([p for p in packages if p.startswith("tox==")]) == 1
assert all(re.match(r"\S+==\S+", p) for p in packages)