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tests: Use sys.exec_prefix, not sys.executable, to determine the Python run

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Virtualenv 20.0 follows symlinks when populating sys.executable,
so we can't use it. (AFAIUI it's done to better handle cases where the
system executable is changed after a virtualenv is created.)
See: https://github.com/pypa/virtualenv/pull/1522

sys.exec_prefix still points to inside the virtualenv, so use that
in the tests to determine what's being run.
This commit is contained in:
Petr Viktorin 2020-08-11 17:07:58 +02:00
parent bfbc61a4b7
commit 2e513fe88f
2 changed files with 19 additions and 17 deletions
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2
tests/fixtures/tox.ini vendored
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@ -6,4 +6,4 @@ deps =
six
py
commands =
python -c 'import os, sys; print(os.path.realpath(sys.executable))'
python -c 'import os, sys; print(os.path.realpath(sys.exec_prefix), "is the exec_prefix")'

34
tests/test_integration.py
View File

@ -13,6 +13,8 @@ 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")
@ -62,14 +64,14 @@ needs_tox38 = pytest.mark.skipif(
def test_native_toxenv_current_env():
result = tox("-e", NATIVE_TOXENV, "--current-env")
assert result.stdout.splitlines()[0] == NATIVE_EXECUTABLE
assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
assert not (DOT_TOX / NATIVE_TOXENV / "lib").is_dir()
@needs_py3678
def test_all_toxenv_current_env():
result = tox("--current-env", check=False)
assert NATIVE_EXECUTABLE in result.stdout.splitlines()
assert NATIVE_EXEC_PREFIX_MSG in result.stdout.splitlines()
assert result.stdout.count("InterpreterMismatch:") >= 2
assert result.returncode > 0
@ -186,9 +188,9 @@ def test_print_deps_only_print_deps_to_file_are_mutually_exclusive():
def test_regular_run():
result = tox()
lines = sorted(result.stdout.splitlines()[:3])
assert "/.tox/py36/bin/python" in lines[0]
assert "/.tox/py37/bin/python" in lines[1]
assert "/.tox/py38/bin/python" in lines[2]
assert "/.tox/py36 is the exec_prefix" in lines[0]
assert "/.tox/py37 is the exec_prefix" in lines[1]
assert "/.tox/py38 is the exec_prefix" in lines[2]
assert "congratulations" in result.stdout
for y in 6, 7, 8:
for pkg in "py", "six", "test":
@ -200,7 +202,7 @@ def test_regular_run():
def test_regular_run_native_toxenv():
result = tox("-e", NATIVE_TOXENV)
lines = sorted(result.stdout.splitlines()[:1])
assert f"/.tox/{NATIVE_TOXENV}/bin/python" in lines[0]
assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in lines[0]
assert "congratulations" in result.stdout
for pkg in "py", "six", "test":
sitelib = (
@ -213,9 +215,9 @@ def test_regular_run_native_toxenv():
@needs_tox38
def test_regular_after_current_is_supported():
result = tox("-e", NATIVE_TOXENV, "--current-env")
assert result.stdout.splitlines()[0] == NATIVE_EXECUTABLE
assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
result = tox("-e", NATIVE_TOXENV)
assert f"/.tox/{NATIVE_TOXENV}/bin/python" in result.stdout
assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
assert "--recreate" not in result.stderr
@ -237,7 +239,7 @@ def test_regular_after_first_deps_only_is_supported():
result = tox("-e", NATIVE_TOXENV)
lines = sorted(result.stdout.splitlines()[:1])
assert "--recreate" not in result.stderr
assert f"/.tox/{NATIVE_TOXENV}/bin/python" in lines[0]
assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in lines[0]
# check that "test" was not installed to current environment
shutil.rmtree("./test.egg-info")
@ -252,16 +254,16 @@ def test_regular_after_first_deps_only_is_supported():
def test_regular_recreate_after_current():
result = tox("-e", NATIVE_TOXENV, "--current-env")
assert result.stdout.splitlines()[0] == NATIVE_EXECUTABLE
assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
result = tox("-re", NATIVE_TOXENV)
assert f"/.tox/{NATIVE_TOXENV}/bin/python" in result.stdout
assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
assert "not supported" not in result.stderr
assert "--recreate" not in result.stderr
def test_current_after_regular_is_not_supported():
result = tox("-e", NATIVE_TOXENV)
assert f"/.tox/{NATIVE_TOXENV}/bin/python" in result.stdout
assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
result = tox("-e", NATIVE_TOXENV, "--current-env", check=False)
assert result.returncode > 0
assert "not supported" in result.stderr
@ -269,9 +271,9 @@ def test_current_after_regular_is_not_supported():
def test_current_recreate_after_regular():
result = tox("-e", NATIVE_TOXENV)
assert f"/.tox/{NATIVE_TOXENV}/bin/python" in result.stdout
assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
result = tox("-re", NATIVE_TOXENV, "--current-env")
assert result.stdout.splitlines()[0] == NATIVE_EXECUTABLE
assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
def test_current_after_deps_only():
@ -281,7 +283,7 @@ def test_current_after_deps_only():
assert "bin/python" not in result.stdout
assert "six" in result.stdout
result = tox("-re", NATIVE_TOXENV, "--current-env")
assert result.stdout.splitlines()[0] == NATIVE_EXECUTABLE
assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
def test_regular_recreate_after_deps_only():
@ -290,7 +292,7 @@ def test_regular_recreate_after_deps_only():
assert "six" in result.stdout
result = tox("-re", NATIVE_TOXENV)
assert result.stdout.splitlines()[0] != NATIVE_EXECUTABLE
assert result.stdout.splitlines()[0] != NATIVE_EXEC_PREFIX_MSG
sitelib = DOT_TOX / f"{NATIVE_TOXENV}/lib/python3.{NATIVE_TOXENV[-1]}/site-packages"
assert sitelib.is_dir()
assert len(list(sitelib.glob("test-*.dist-info"))) == 1