mirror of
https://github.com/fedora-python/tox-current-env.git
synced 2024-12-25 01:26:13 +01:00
2e513fe88f
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.
324 lines
10 KiB
Python
324 lines
10 KiB
Python
import functools
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import os
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import pathlib
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import shutil
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import subprocess
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import sys
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import textwrap
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from packaging import version
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import pytest
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NATIVE_TOXENV = f"py{sys.version_info[0]}{sys.version_info[1]}"
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NATIVE_EXECUTABLE = str(pathlib.Path(sys.executable).resolve())
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NATIVE_EXEC_PREFIX = str(pathlib.Path(sys.exec_prefix).resolve())
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NATIVE_EXEC_PREFIX_MSG = f"{NATIVE_EXEC_PREFIX} is the exec_prefix"
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FIXTURES_DIR = pathlib.Path(__file__).parent / "fixtures"
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DOT_TOX = pathlib.Path("./.tox")
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@pytest.fixture(autouse=True)
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def projdir(tmp_path, monkeypatch):
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pwd = tmp_path / "projdir"
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pwd.mkdir()
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for fname in "tox.ini", "setup.py":
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shutil.copy(FIXTURES_DIR / fname, pwd)
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monkeypatch.chdir(pwd)
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def tox(*args, **kwargs):
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kwargs.setdefault("encoding", "utf-8")
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kwargs.setdefault("stdout", subprocess.PIPE)
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kwargs.setdefault("stderr", subprocess.PIPE)
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kwargs.setdefault("check", True)
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cp = subprocess.run((sys.executable, "-m", "tox", "-q") + args, **kwargs)
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print(cp.stdout, file=sys.stdout)
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print(cp.stderr, file=sys.stderr)
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return cp
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@functools.lru_cache(maxsize=8)
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def is_available(python):
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try:
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subprocess.run((python, "--version"))
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except FileNotFoundError:
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return False
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return True
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TOX_VERSION = version.parse(tox("--version").stdout.split(" ")[0])
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needs_py3678 = pytest.mark.skipif(
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not is_available("python3.6")
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or not is_available("python3.7")
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or not is_available("python3.8"),
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reason="This test needs all of python3.6, python3.7 and python3.8 to be available in $PATH",
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)
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needs_tox38 = pytest.mark.skipif(
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TOX_VERSION < version.parse("3.8"), reason="This test needs at least tox 3.8"
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)
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def test_native_toxenv_current_env():
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result = tox("-e", NATIVE_TOXENV, "--current-env")
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assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
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assert not (DOT_TOX / NATIVE_TOXENV / "lib").is_dir()
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@needs_py3678
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def test_all_toxenv_current_env():
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result = tox("--current-env", check=False)
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assert NATIVE_EXEC_PREFIX_MSG in result.stdout.splitlines()
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assert result.stdout.count("InterpreterMismatch:") >= 2
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assert result.returncode > 0
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@pytest.mark.parametrize("python", ["python3.4", "python3.5"])
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def test_missing_toxenv_current_env(python):
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if is_available(python):
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pytest.skip(f"Only works if {python} is not available in $PATH")
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env = python.replace("python", "py").replace(".", "")
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result = tox("-e", env, "--current-env", check=False)
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assert f"InterpreterNotFound: {python}" in result.stdout
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assert "Traceback" not in (result.stderr + result.stdout)
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assert result.returncode > 0
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@needs_py3678
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def test_all_toxenv_current_env_skip_missing():
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result = tox("--current-env", "--skip-missing-interpreters", check=False)
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assert "InterpreterMismatch:" in result.stdout
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assert "congratulations" in result.stdout
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assert result.returncode == 0
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@pytest.mark.parametrize("toxenv", ["py36", "py37", "py38"])
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def test_print_deps_only(toxenv):
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result = tox("-e", toxenv, "--print-deps-only")
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expected = textwrap.dedent(
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f"""
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six
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py
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___________________________________ summary ____________________________________
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{toxenv}: commands succeeded
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congratulations :)
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"""
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).lstrip()
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assert result.stdout == expected
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def test_allenvs_print_deps_only():
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result = tox("--print-deps-only")
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expected = textwrap.dedent(
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"""
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six
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py
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six
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py
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six
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py
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___________________________________ summary ____________________________________
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py36: commands succeeded
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py37: commands succeeded
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py38: commands succeeded
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congratulations :)
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"""
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).lstrip()
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assert result.stdout == expected
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@pytest.mark.parametrize("toxenv", ["py36", "py37", "py38"])
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def test_print_deps_to_file(toxenv, tmp_path):
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depspath = tmp_path / "deps"
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result = tox("-e", toxenv, "--print-deps-to-file", str(depspath))
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assert depspath.read_text().splitlines() == ["six", "py"]
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expected = textwrap.dedent(
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f"""
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___________________________________ summary ____________________________________
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{toxenv}: commands succeeded
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congratulations :)
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"""
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).lstrip()
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assert result.stdout == expected
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def test_allenvs_print_deps_to_file(tmp_path):
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depspath = tmp_path / "deps"
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result = tox("--print-deps-to-file", str(depspath))
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assert depspath.read_text().splitlines() == ["six", "py"] * 3
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expected = textwrap.dedent(
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"""
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___________________________________ summary ____________________________________
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py36: commands succeeded
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py37: commands succeeded
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py38: commands succeeded
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congratulations :)
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"""
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).lstrip()
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assert result.stdout == expected
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def test_allenvs_print_deps_to_existing_file(tmp_path):
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depspath = tmp_path / "deps"
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depspath.write_text("nada")
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result = tox("--print-deps-to-file", str(depspath))
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lines = depspath.read_text().splitlines()
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assert "nada" not in lines
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assert "six" in lines
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assert "py" in lines
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def test_print_deps_only_print_deps_to_file_are_mutually_exclusive():
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result = tox(
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"-e",
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NATIVE_TOXENV,
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"--print-deps-only",
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"--print-deps-to-file",
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"foobar",
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check=False,
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)
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assert result.returncode > 0
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assert "cannot be used together" in result.stderr
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@needs_py3678
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def test_regular_run():
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result = tox()
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lines = sorted(result.stdout.splitlines()[:3])
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assert "/.tox/py36 is the exec_prefix" in lines[0]
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assert "/.tox/py37 is the exec_prefix" in lines[1]
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assert "/.tox/py38 is the exec_prefix" in lines[2]
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assert "congratulations" in result.stdout
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for y in 6, 7, 8:
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for pkg in "py", "six", "test":
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sitelib = DOT_TOX / f"py3{y}/lib/python3.{y}/site-packages"
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assert sitelib.is_dir()
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assert len(list(sitelib.glob(f"{pkg}-*.dist-info"))) == 1
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def test_regular_run_native_toxenv():
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result = tox("-e", NATIVE_TOXENV)
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lines = sorted(result.stdout.splitlines()[:1])
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assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in lines[0]
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assert "congratulations" in result.stdout
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for pkg in "py", "six", "test":
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sitelib = (
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DOT_TOX / f"{NATIVE_TOXENV}/lib/python3.{NATIVE_TOXENV[-1]}/site-packages"
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)
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assert sitelib.is_dir()
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assert len(list(sitelib.glob(f"{pkg}-*.dist-info"))) == 1
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@needs_tox38
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def test_regular_after_current_is_supported():
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result = tox("-e", NATIVE_TOXENV, "--current-env")
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assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
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result = tox("-e", NATIVE_TOXENV)
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assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
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assert "--recreate" not in result.stderr
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def test_regular_after_killed_current_is_not_supported():
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# fake broken tox run
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shutil.rmtree(DOT_TOX, ignore_errors=True)
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(DOT_TOX / NATIVE_TOXENV / "bin").mkdir(parents=True)
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(DOT_TOX / NATIVE_TOXENV / "bin" / "python").symlink_to(NATIVE_EXECUTABLE)
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result = tox("-e", NATIVE_TOXENV, check=False)
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assert result.returncode > 0
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assert "--recreate" in result.stderr
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@needs_tox38
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def test_regular_after_first_deps_only_is_supported():
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result = tox("-e", NATIVE_TOXENV, "--print-deps-only")
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assert result.stdout.splitlines()[0] == "six"
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result = tox("-e", NATIVE_TOXENV)
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lines = sorted(result.stdout.splitlines()[:1])
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assert "--recreate" not in result.stderr
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assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in lines[0]
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# check that "test" was not installed to current environment
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shutil.rmtree("./test.egg-info")
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pip_freeze = subprocess.run(
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(sys.executable, "-m", "pip", "freeze"),
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encoding="utf-8",
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stdout=subprocess.PIPE,
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).stdout.splitlines()
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# XXX when this fails, recreate your current environment
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assert "test==0.0.0" not in pip_freeze
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def test_regular_recreate_after_current():
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result = tox("-e", NATIVE_TOXENV, "--current-env")
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assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
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result = tox("-re", NATIVE_TOXENV)
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assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
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assert "not supported" not in result.stderr
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assert "--recreate" not in result.stderr
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def test_current_after_regular_is_not_supported():
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result = tox("-e", NATIVE_TOXENV)
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assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
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result = tox("-e", NATIVE_TOXENV, "--current-env", check=False)
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assert result.returncode > 0
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assert "not supported" in result.stderr
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def test_current_recreate_after_regular():
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result = tox("-e", NATIVE_TOXENV)
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assert f"/.tox/{NATIVE_TOXENV} is the exec_prefix" in result.stdout
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result = tox("-re", NATIVE_TOXENV, "--current-env")
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assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
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def test_current_after_deps_only():
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# this is quite fast, so we can do it several times
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for _ in range(3):
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result = tox("-e", NATIVE_TOXENV, "--print-deps-only")
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assert "bin/python" not in result.stdout
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assert "six" in result.stdout
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result = tox("-re", NATIVE_TOXENV, "--current-env")
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assert result.stdout.splitlines()[0] == NATIVE_EXEC_PREFIX_MSG
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def test_regular_recreate_after_deps_only():
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result = tox("-e", NATIVE_TOXENV, "--print-deps-only")
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assert "bin/python" not in result.stdout
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assert "six" in result.stdout
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result = tox("-re", NATIVE_TOXENV)
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assert result.stdout.splitlines()[0] != NATIVE_EXEC_PREFIX_MSG
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sitelib = DOT_TOX / f"{NATIVE_TOXENV}/lib/python3.{NATIVE_TOXENV[-1]}/site-packages"
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assert sitelib.is_dir()
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assert len(list(sitelib.glob("test-*.dist-info"))) == 1
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result = tox("-e", NATIVE_TOXENV, "--print-deps-only")
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assert "bin/python" not in result.stdout
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assert "six" in result.stdout
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def test_print_deps_without_python_command(tmp_path):
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bin = tmp_path / "bin"
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bin.mkdir()
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tox_link = bin / "tox"
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tox_path = shutil.which("tox")
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tox_link.symlink_to(tox_path)
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env = {**os.environ, "PATH": str(bin)}
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result = tox("-e", NATIVE_TOXENV, "--print-deps-only", env=env)
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expected = textwrap.dedent(
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f"""
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six
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py
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___________________________________ summary ____________________________________
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{NATIVE_TOXENV}: commands succeeded
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congratulations :)
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"""
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).lstrip()
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assert result.stdout == expected
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