mirror of
https://github.com/pypa/pip
synced 2023-12-13 21:30:23 +01:00
75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
from pip._vendor import pytoml
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from pip._internal.build_env import BuildEnvironment
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from pip._internal.download import PipSession
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from pip._internal.index import PackageFinder
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from pip._internal.req import InstallRequirement
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def make_project(tmpdir, requires=[], backend=None):
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project_dir = (tmpdir / 'project').mkdir()
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buildsys = {'requires': requires}
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if backend:
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buildsys['build-backend'] = backend
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data = pytoml.dumps({'build-system': buildsys})
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project_dir.join('pyproject.toml').write(data)
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return project_dir
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def test_backend(tmpdir, data):
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"""Check we can call a requirement's backend successfully"""
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project_dir = make_project(tmpdir, backend="dummy_backend")
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req = InstallRequirement(None, None, source_dir=project_dir)
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req.load_pyproject_toml()
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env = BuildEnvironment()
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finder = PackageFinder([data.backends], [], session=PipSession())
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env.install_requirements(finder, ["dummy_backend"], 'normal', "Installing")
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conflicting, missing = env.check_requirements(["dummy_backend"])
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assert not conflicting and not missing
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assert hasattr(req.pep517_backend, 'build_wheel')
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with env:
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assert req.pep517_backend.build_wheel("dir") == "Backend called"
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def test_pep517_install(script, tmpdir, data):
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"""Check we can build with a custom backend"""
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project_dir = make_project(
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tmpdir, requires=['test_backend'],
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backend="test_backend"
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)
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result = script.pip(
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'install', '--no-index', '-f', data.backends, project_dir
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)
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result.assert_installed('project', editable=False)
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def test_pep517_install_with_reqs(script, tmpdir, data):
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"""Backend generated requirements are installed in the build env"""
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project_dir = make_project(
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tmpdir, requires=['test_backend'],
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backend="test_backend"
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)
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project_dir.join("backend_reqs.txt").write("simplewheel")
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result = script.pip(
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'install', '--no-index',
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'-f', data.backends,
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'-f', data.packages,
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project_dir
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)
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result.assert_installed('project', editable=False)
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def test_no_use_pep517_without_setup_py(script, tmpdir, data):
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"""Using --no-use-pep517 requires setup.py"""
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project_dir = make_project(
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tmpdir, requires=['test_backend'],
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backend="test_backend"
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)
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result = script.pip(
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'install', '--no-index', '--no-use-pep517',
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'-f', data.backends,
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project_dir,
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expect_error=True
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)
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assert 'project does not have a setup.py' in result.stderr
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