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import platform
import sys
from pathlib import Path
import pytest
from pbs_installer import PythonVersion
from pdm.models.python import PythonInfo
from pdm.utils import parse_version
@pytest.fixture
def mock_install(mocker):
if (arch := platform.machine().lower()) not in ("arm64", "aarch64", "amd64", "x86_64"):
pytest.skip(f"Skipped on non-standard platform: {arch}")
def install_file(
filename,
destination,
original_filename=None,
build_dir=False,
) -> None:
if sys.platform == "win32":
Path(destination, "python.exe").touch()
else:
Path(destination, "bin").mkdir(parents=True, exist_ok=True)
Path(destination, "bin", "python3").touch()
def get_version(self):
name = self.executable.parent.name if sys.platform == "win32" else self.executable.parent.parent.name
if "@" not in name:
return parse_version(platform.python_version())
return parse_version(name.split("@", 1)[1])
@property
def interpreter(self):
return self.executable
@property
def implementation(self):
name = self.executable.parent.name if sys.platform == "win32" else self.executable.parent.parent.name
if "@" not in name:
return "cpython"
return name.split("@", 1)[0]
mocker.patch("pbs_installer.download", return_value="python-3.10.8.tar.gz")
installer = mocker.patch("pbs_installer.install_file", side_effect=install_file)
mocker.patch("findpython.python.PythonVersion.implementation", implementation)
mocker.patch("findpython.python.PythonVersion._get_version", get_version)
mocker.patch("findpython.python.PythonVersion.interpreter", interpreter)
mocker.patch("findpython.python.PythonVersion.architecture", mocker.PropertyMock(return_value="64bit"))
return installer
def test_install_python(project, pdm, mock_install):
root = Path(project.config["python.install_root"])
pdm(["py", "install", "cpython@3.10.8", "-v"], obj=project, strict=True)
mock_install.assert_called_once()
assert (root / "cpython@3.10.8").exists()
result = pdm(["py", "list"], obj=project, strict=True)
assert result.stdout.splitlines()[0].startswith("cpython@3.10.8")
result = pdm(["py", "remove", "3.11.1"], obj=project)
assert result.exit_code != 0
pdm(["py", "remove", "cpython@3.10.8"], obj=project, strict=True)
assert not (root / "cpython@3.10.8").exists()
result = pdm(["py", "install", "--list"], obj=project, strict=True)
assert len(result.stdout.splitlines()) > 0
def test_install_python_best_match(project, pdm, mock_install, mocker):
root = Path(project.config["python.install_root"])
mock_best_match = mocker.patch(
"pdm.project.core.Project.get_best_matching_cpython_version", return_value=PythonVersion("cpython", 3, 10, 8)
)
pdm(["py", "install"], obj=project, strict=True)
mock_best_match.assert_called_once()
mock_install.assert_called_once()
assert (root / "cpython@3.10.8").exists()
def test_install_python_min_match(project, pdm, mock_install, mocker):
root = Path(project.config["python.install_root"])
mock_best_match = mocker.patch(
"pdm.project.core.Project.get_best_matching_cpython_version", return_value=PythonVersion("cpython", 3, 10, 7)
)
pdm(["py", "install", "--min"], obj=project, strict=True)
mock_best_match.assert_called_once_with(True)
mock_install.assert_called_once()
assert (root / "cpython@3.10.7").exists()
def test_use_auto_install_missing(project, pdm, mock_install, mocker):
root = Path(project.config["python.install_root"])
mock_find_interpreters = mocker.patch("pdm.project.Project.find_interpreters", return_value=[])
mock_best_match = mocker.patch("pdm.project.core.Project.get_best_matching_cpython_version")
pdm(["use", "3.10.8"], obj=project, strict=True)
mock_install.assert_called_once()
mock_find_interpreters.assert_called_once()
mock_best_match.assert_not_called()
assert (root / "cpython@3.10.8").exists()
def test_use_auto_install_pick_latest(project, pdm, mock_install, mocker):
root = Path(project.config["python.install_root"])
mock_find_interpreters = mocker.patch("pdm.project.Project.find_interpreters", return_value=[])
mock_best_match = mocker.patch(
"pdm.project.core.Project.get_best_matching_cpython_version", return_value=PythonVersion("cpython", 3, 10, 8)
)
pdm(["use", "-v"], obj=project, strict=True)
mock_install.assert_called_once()
mock_find_interpreters.assert_called_once()
mock_best_match.assert_called_once()
assert len(list(root.iterdir())) == 1
def test_use_no_auto_install(project, pdm, mocker):
installer = mocker.patch("pbs_installer.install_file")
mock_best_match = mocker.patch("pdm.project.core.Project.get_best_matching_cpython_version")
pdm(["use", "-f"], obj=project, strict=True)
installer.assert_not_called()
mock_best_match.assert_not_called()
def test_use_auto_install_strategy_max(project, pdm, mock_install, mocker):
root = Path(project.config["python.install_root"])
mock_find_interpreters = mocker.patch("pdm.project.Project.find_interpreters")
mock_best_match = mocker.patch(
"pdm.project.core.Project.get_best_matching_cpython_version", return_value=PythonVersion("cpython", 3, 10, 8)
)
pdm(["use", "--auto-install-max"], obj=project, strict=True)
mock_install.assert_called_once()
mock_find_interpreters.assert_not_called()
mock_best_match.assert_called_once()
assert len(list(root.iterdir())) == 1
def test_use_auto_install_strategy_min(project, pdm, mock_install, mocker):
root = Path(project.config["python.install_root"])
mock_find_interpreters = mocker.patch("pdm.project.Project.find_interpreters")
mock_best_match = mocker.patch(
"pdm.project.core.Project.get_best_matching_cpython_version", return_value=PythonVersion("cpython", 3, 10, 7)
)
pdm(["use", "--auto-install-min"], obj=project, strict=True)
mock_install.assert_called_once()
mock_find_interpreters.assert_not_called()
mock_best_match.assert_called_once_with(True)
assert len(list(root.iterdir())) == 1
def test_link_python(project, pdm):
root = Path(project.config["python.install_root"])
pdm(["python", "link", sys.executable], obj=project, strict=True)
python_info = PythonInfo.from_path(sys.executable)
link_name = f"{python_info.implementation}@{python_info.identifier}"
assert (root / link_name).resolve() == Path(sys.prefix).resolve()
pdm(["python", "remove", link_name], obj=project, strict=True)
assert not (root / link_name).exists()
pdm(["python", "link", sys.executable, "--name", "foo"], obj=project, strict=True)
assert (root / "foo").resolve() == Path(sys.prefix).resolve()
pdm(["python", "remove", "foo"], obj=project, strict=True)
assert not (root / "foo").exists()
def test_link_python_invalid_interpreter(project, pdm):
result = pdm(["python", "link", "/path/to/invalid/python"], obj=project)
assert result.exit_code != 0
assert "Invalid Python interpreter" in result.stderr
root = Path(project.config["python.install_root"])
root.mkdir(parents=True, exist_ok=True)
root.joinpath("foo").touch()
result = pdm(["python", "link", sys.executable, "--name", "foo"], obj=project)
assert result.exit_code != 0
assert "Link foo already exists" in result.stderr
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