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pip/tests/functional/test_pep517.py
Tzu-ping Chung 42359a9605 Migrate tests to use pathlib.Path
The pip-specific Path implementation has been removed, and all its
usages replaced by pathlib.Path. The tmpdir and tmpdir_factory fixtures
are also removed, and all usages are replaced by tmp_path and
tmp_path_factory, which use pathlib.Path.

The pip() function now also accepts pathlib.Path so we don't need to put
str() everywhere. Path arguments are coerced with os.fspath() into str.
2022-06-08 19:58:46 +08:00

424 lines
13 KiB
Python

import os
from pathlib import Path
from typing import Any, Dict, List, Optional, Tuple
import pytest
import tomli_w
from pip._internal.build_env import BuildEnvironment
from pip._internal.req import InstallRequirement
from tests.lib import (
PipTestEnvironment,
TestData,
create_basic_wheel_for_package,
make_test_finder,
)
def make_project(
tmpdir: Path,
requires: Optional[List[str]] = None,
backend: Optional[str] = None,
backend_path: Optional[List[str]] = None,
) -> Path:
requires = requires or []
project_dir = tmpdir / "project"
project_dir.mkdir()
buildsys: Dict[str, Any] = {"requires": requires}
if backend:
buildsys["build-backend"] = backend
if backend_path:
buildsys["backend-path"] = backend_path
data = tomli_w.dumps({"build-system": buildsys})
project_dir.joinpath("pyproject.toml").write_text(data)
return project_dir
def test_backend(tmpdir: Path, data: TestData) -> None:
"""Check we can call a requirement's backend successfully"""
project_dir = make_project(tmpdir, backend="dummy_backend")
req = InstallRequirement(None, None)
req.source_dir = os.fspath(project_dir) # make req believe it has been unpacked
req.load_pyproject_toml()
env = BuildEnvironment()
finder = make_test_finder(find_links=[data.backends])
env.install_requirements(finder, ["dummy_backend"], "normal", kind="Installing")
conflicting, missing = env.check_requirements(["dummy_backend"])
assert not conflicting and not missing
assert hasattr(req.pep517_backend, "build_wheel")
with env:
assert req.pep517_backend is not None
assert req.pep517_backend.build_wheel("dir") == "Backend called"
dummy_backend_code = """\
def build_wheel(
wheel_directory,
config_settings=None,
metadata_directory=None
):
return "Backend called"
"""
def test_backend_path(tmpdir: Path, data: TestData) -> None:
"""Check we can call a backend inside the project"""
project_dir = make_project(tmpdir, backend="dummy_backend", backend_path=["."])
(project_dir / "dummy_backend.py").write_text(dummy_backend_code)
req = InstallRequirement(None, None)
req.source_dir = os.fspath(project_dir) # make req believe it has been unpacked
req.load_pyproject_toml()
env = BuildEnvironment()
assert hasattr(req.pep517_backend, "build_wheel")
with env:
assert req.pep517_backend is not None
assert req.pep517_backend.build_wheel("dir") == "Backend called"
def test_backend_path_and_dep(tmpdir: Path, data: TestData) -> None:
"""Check we can call a requirement's backend successfully"""
project_dir = make_project(
tmpdir, backend="dummy_internal_backend", backend_path=["."]
)
(project_dir / "dummy_internal_backend.py").write_text(
"from dummy_backend import build_wheel"
)
req = InstallRequirement(None, None)
req.source_dir = os.fspath(project_dir) # make req believe it has been unpacked
req.load_pyproject_toml()
env = BuildEnvironment()
finder = make_test_finder(find_links=[data.backends])
env.install_requirements(finder, ["dummy_backend"], "normal", kind="Installing")
assert hasattr(req.pep517_backend, "build_wheel")
with env:
assert req.pep517_backend is not None
assert req.pep517_backend.build_wheel("dir") == "Backend called"
def test_pep517_install(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
"""Check we can build with a custom backend"""
project_dir = make_project(
tmpdir, requires=["test_backend"], backend="test_backend"
)
result = script.pip("install", "--no-index", "-f", data.backends, project_dir)
result.assert_installed("project", editable=False)
def test_pep517_install_with_reqs(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
"""Backend generated requirements are installed in the build env"""
project_dir = make_project(
tmpdir, requires=["test_backend"], backend="test_backend"
)
project_dir.joinpath("backend_reqs.txt").write_text("simplewheel")
result = script.pip(
"install", "--no-index", "-f", data.backends, "-f", data.packages, project_dir
)
result.assert_installed("project", editable=False)
def test_no_use_pep517_without_setup_py(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
"""Using --no-use-pep517 requires setup.py"""
project_dir = make_project(
tmpdir, requires=["test_backend"], backend="test_backend"
)
result = script.pip(
"install",
"--no-index",
"--no-use-pep517",
"-f",
data.backends,
project_dir,
expect_error=True,
)
assert "project does not have a setup.py" in result.stderr
def test_conflicting_pep517_backend_requirements(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
project_dir = make_project(
tmpdir, requires=["test_backend", "simplewheel==1.0"], backend="test_backend"
)
project_dir.joinpath("backend_reqs.txt").write_text("simplewheel==2.0")
result = script.pip(
"install",
"--no-index",
"-f",
data.backends,
"-f",
data.packages,
project_dir,
expect_error=True,
)
msg = (
"Some build dependencies for {url} conflict with the backend "
"dependencies: simplewheel==1.0 is incompatible with "
"simplewheel==2.0.".format(url=project_dir.as_uri())
)
assert result.returncode != 0 and msg in result.stderr, str(result)
def test_no_check_build_deps(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
project_dir = make_project(
tmpdir, requires=["simplewheel==2.0"], backend="test_backend"
)
script.pip(
"install",
"simplewheel==1.0",
"test_backend",
"--no-index",
"-f",
data.packages,
"-f",
data.backends,
)
result = script.pip("install", "--no-build-isolation", project_dir)
result.assert_installed("project", editable=False)
def test_validate_missing_pep517_backend_requirements(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
project_dir = make_project(
tmpdir, requires=["test_backend", "simplewheel==1.0"], backend="test_backend"
)
result = script.pip(
"install",
"--no-index",
"-f",
data.backends,
"-f",
data.packages,
"--no-build-isolation",
"--check-build-dependencies",
project_dir,
expect_error=True,
)
msg = (
"Some build dependencies for {url} are missing: "
"'simplewheel==1.0', 'test_backend'.".format(url=project_dir.as_uri())
)
assert result.returncode != 0 and msg in result.stderr, str(result)
def test_validate_conflicting_pep517_backend_requirements(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
project_dir = make_project(
tmpdir, requires=["simplewheel==1.0"], backend="test_backend"
)
script.pip("install", "simplewheel==2.0", "--no-index", "-f", data.packages)
result = script.pip(
"install",
"--no-index",
"-f",
data.backends,
"-f",
data.packages,
"--no-build-isolation",
"--check-build-dependencies",
project_dir,
expect_error=True,
)
msg = (
"Some build dependencies for {url} conflict with the backend "
"dependencies: simplewheel==2.0 is incompatible with "
"simplewheel==1.0.".format(url=project_dir.as_uri())
)
assert result.returncode != 0 and msg in result.stderr, str(result)
def test_pep517_backend_requirements_satisfied_by_prerelease(
script: PipTestEnvironment,
data: TestData,
) -> None:
create_basic_wheel_for_package(script, "myreq", "1.0a1")
script.pip("install", "myreq==1.0a1", "--no-index", "-f", script.scratch_path)
script.pip("install", "test_backend", "--no-index", "-f", data.backends)
project_dir = make_project(
script.temp_path,
requires=["test_backend", "myreq"],
backend="test_backend",
)
project_dir.joinpath("backend_reqs.txt").write_text("myreq")
result = script.pip("install", "--no-index", "--no-build-isolation", project_dir)
assert "Installing backend dependencies:" not in result.stdout
def test_pep517_backend_requirements_already_satisfied(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
project_dir = make_project(
tmpdir, requires=["test_backend", "simplewheel==1.0"], backend="test_backend"
)
project_dir.joinpath("backend_reqs.txt").write_text("simplewheel")
result = script.pip(
"install",
"--no-index",
"-f",
data.backends,
"-f",
data.packages,
project_dir,
)
assert "Installing backend dependencies:" not in result.stdout
def test_pep517_install_with_no_cache_dir(
script: PipTestEnvironment, tmpdir: Path, data: TestData
) -> None:
"""Check builds with a custom backends work, even with no cache."""
project_dir = make_project(
tmpdir, requires=["test_backend"], backend="test_backend"
)
result = script.pip(
"install",
"--no-cache-dir",
"--no-index",
"-f",
data.backends,
project_dir,
)
result.assert_installed("project", editable=False)
def make_pyproject_with_setup(
tmpdir: Path, build_system: bool = True, set_backend: bool = True
) -> Tuple[Path, str]:
project_dir = tmpdir / "project"
project_dir.mkdir()
setup_script = "from setuptools import setup\n"
expect_script_dir_on_path = True
if build_system:
buildsys: Dict[str, Any] = {
"requires": ["setuptools", "wheel"],
}
if set_backend:
buildsys["build-backend"] = "setuptools.build_meta"
expect_script_dir_on_path = False
project_data = tomli_w.dumps({"build-system": buildsys})
else:
project_data = ""
if expect_script_dir_on_path:
setup_script += "from pep517_test import __version__\n"
else:
setup_script += (
"try:\n"
" import pep517_test\n"
"except ImportError:\n"
" pass\n"
"else:\n"
' raise RuntimeError("Source dir incorrectly on sys.path")\n'
)
setup_script += 'setup(name="pep517_test", version="0.1", packages=["pep517_test"])'
project_dir.joinpath("pyproject.toml").write_text(project_data)
project_dir.joinpath("setup.py").write_text(setup_script)
package_dir = project_dir / "pep517_test"
package_dir.mkdir()
package_dir.joinpath("__init__.py").write_text('__version__ = "0.1"')
return project_dir, "pep517_test"
def test_no_build_system_section(
script: PipTestEnvironment, tmpdir: Path, data: TestData, common_wheels: Path
) -> None:
"""Check builds with setup.py, pyproject.toml, but no build-system section."""
project_dir, name = make_pyproject_with_setup(tmpdir, build_system=False)
result = script.pip(
"install",
"--no-cache-dir",
"--no-index",
"-f",
common_wheels,
project_dir,
)
result.assert_installed(name, editable=False)
def test_no_build_backend_entry(
script: PipTestEnvironment, tmpdir: Path, data: TestData, common_wheels: Path
) -> None:
"""Check builds with setup.py, pyproject.toml, but no build-backend entry."""
project_dir, name = make_pyproject_with_setup(tmpdir, set_backend=False)
result = script.pip(
"install",
"--no-cache-dir",
"--no-index",
"-f",
common_wheels,
project_dir,
)
result.assert_installed(name, editable=False)
def test_explicit_setuptools_backend(
script: PipTestEnvironment, tmpdir: Path, data: TestData, common_wheels: Path
) -> None:
"""Check builds with setup.py, pyproject.toml, and a build-backend entry."""
project_dir, name = make_pyproject_with_setup(tmpdir)
result = script.pip(
"install",
"--no-cache-dir",
"--no-index",
"-f",
common_wheels,
project_dir,
)
result.assert_installed(name, editable=False)
@pytest.mark.network
def test_pep517_and_build_options(
script: PipTestEnvironment, tmpdir: Path, data: TestData, common_wheels: Path
) -> None:
"""Backend generated requirements are installed in the build env"""
project_dir, name = make_pyproject_with_setup(tmpdir)
result = script.pip(
"wheel",
"--wheel-dir",
tmpdir,
"--build-option",
"foo",
"-f",
common_wheels,
project_dir,
allow_stderr_warning=True,
)
assert "Ignoring --build-option when building" in result.stderr
assert "using PEP 517" in result.stderr
@pytest.mark.network
def test_pep517_and_global_options(
script: PipTestEnvironment, tmpdir: Path, data: TestData, common_wheels: Path
) -> None:
"""Backend generated requirements are installed in the build env"""
project_dir, name = make_pyproject_with_setup(tmpdir)
result = script.pip(
"wheel",
"--wheel-dir",
tmpdir,
"--global-option",
"foo",
"-f",
common_wheels,
project_dir,
allow_stderr_warning=True,
)
assert "Ignoring --global-option when building" in result.stderr
assert "using PEP 517" in result.stderr