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|
import os
from textwrap import dedent
from typing import Optional
import pytest
from pip._internal.build_env import BuildEnvironment
from tests.lib import (
PipTestEnvironment,
TestPipResult,
create_basic_wheel_for_package,
make_test_finder,
)
def indent(text: str, prefix: str) -> str:
return "\n".join((prefix if line else "") + line for line in text.split("\n"))
def run_with_build_env(
script: PipTestEnvironment,
setup_script_contents: str,
test_script_contents: Optional[str] = None,
) -> TestPipResult:
build_env_script = script.scratch_path / "build_env.py"
build_env_script.write_text(
dedent(
"""
import subprocess
import sys
from pip._internal.build_env import BuildEnvironment
from pip._internal.index.collector import LinkCollector
from pip._internal.index.package_finder import PackageFinder
from pip._internal.models.search_scope import SearchScope
from pip._internal.models.selection_prefs import (
SelectionPreferences
)
from pip._internal.network.session import PipSession
from pip._internal.utils.temp_dir import global_tempdir_manager
link_collector = LinkCollector(
session=PipSession(),
search_scope=SearchScope.create([{scratch!r}], [], False),
)
selection_prefs = SelectionPreferences(
allow_yanked=True,
)
finder = PackageFinder.create(
link_collector=link_collector,
selection_prefs=selection_prefs,
)
with global_tempdir_manager():
build_env = BuildEnvironment()
""".format(
scratch=str(script.scratch_path)
)
)
+ indent(dedent(setup_script_contents), " ")
+ indent(
dedent(
"""
if len(sys.argv) > 1:
with build_env:
subprocess.check_call((sys.executable, sys.argv[1]))
"""
),
" ",
)
)
args = ["python", os.fspath(build_env_script)]
if test_script_contents is not None:
test_script = script.scratch_path / "test.py"
test_script.write_text(dedent(test_script_contents))
args.append(os.fspath(test_script))
return script.run(*args)
def test_build_env_allow_empty_requirements_install() -> None:
finder = make_test_finder()
build_env = BuildEnvironment()
for prefix in ("normal", "overlay"):
build_env.install_requirements(
finder, [], prefix, kind="Installing build dependencies"
)
def test_build_env_allow_only_one_install(script: PipTestEnvironment) -> None:
create_basic_wheel_for_package(script, "foo", "1.0")
create_basic_wheel_for_package(script, "bar", "1.0")
finder = make_test_finder(find_links=[os.fspath(script.scratch_path)])
build_env = BuildEnvironment()
for prefix in ("normal", "overlay"):
build_env.install_requirements(
finder, ["foo"], prefix, kind=f"installing foo in {prefix}"
)
with pytest.raises(AssertionError):
build_env.install_requirements(
finder, ["bar"], prefix, kind=f"installing bar in {prefix}"
)
with pytest.raises(AssertionError):
build_env.install_requirements(
finder, [], prefix, kind=f"installing in {prefix}"
)
def test_build_env_requirements_check(script: PipTestEnvironment) -> None:
create_basic_wheel_for_package(script, "foo", "2.0")
create_basic_wheel_for_package(script, "bar", "1.0")
create_basic_wheel_for_package(script, "bar", "3.0")
create_basic_wheel_for_package(script, "other", "0.5")
script.pip_install_local("-f", script.scratch_path, "foo", "bar", "other")
run_with_build_env(
script,
"""
r = build_env.check_requirements(['foo', 'bar', 'other'])
assert r == (set(), {'foo', 'bar', 'other'}), repr(r)
r = build_env.check_requirements(['foo>1.0', 'bar==3.0'])
assert r == (set(), {'foo>1.0', 'bar==3.0'}), repr(r)
r = build_env.check_requirements(['foo>3.0', 'bar>=2.5'])
assert r == (set(), {'foo>3.0', 'bar>=2.5'}), repr(r)
""",
)
run_with_build_env(
script,
"""
build_env.install_requirements(finder, ['foo', 'bar==3.0'], 'normal',
kind='installing foo in normal')
r = build_env.check_requirements(['foo', 'bar', 'other'])
assert r == (set(), {'other'}), repr(r)
r = build_env.check_requirements(['foo>1.0', 'bar==3.0'])
assert r == (set(), set()), repr(r)
r = build_env.check_requirements(['foo>3.0', 'bar>=2.5'])
assert r == ({('foo==2.0', 'foo>3.0')}, set()), repr(r)
""",
)
run_with_build_env(
script,
"""
build_env.install_requirements(finder, ['foo', 'bar==3.0'], 'normal',
kind='installing foo in normal')
build_env.install_requirements(finder, ['bar==1.0'], 'overlay',
kind='installing foo in overlay')
r = build_env.check_requirements(['foo', 'bar', 'other'])
assert r == (set(), {'other'}), repr(r)
r = build_env.check_requirements(['foo>1.0', 'bar==3.0'])
assert r == ({('bar==1.0', 'bar==3.0')}, set()), repr(r)
r = build_env.check_requirements(['foo>3.0', 'bar>=2.5'])
assert r == ({('bar==1.0', 'bar>=2.5'), ('foo==2.0', 'foo>3.0')}, \
set()), repr(r)
""",
)
run_with_build_env(
script,
"""
build_env.install_requirements(
finder,
["bar==3.0"],
"normal",
kind="installing bar in normal",
)
r = build_env.check_requirements(
[
"bar==2.0; python_version < '3.0'",
"bar==3.0; python_version >= '3.0'",
"foo==4.0; extra == 'dev'",
],
)
assert r == (set(), set()), repr(r)
""",
)
def test_build_env_overlay_prefix_has_priority(script: PipTestEnvironment) -> None:
create_basic_wheel_for_package(script, "pkg", "2.0")
create_basic_wheel_for_package(script, "pkg", "4.3")
result = run_with_build_env(
script,
"""
build_env.install_requirements(finder, ['pkg==2.0'], 'overlay',
kind='installing pkg==2.0 in overlay')
build_env.install_requirements(finder, ['pkg==4.3'], 'normal',
kind='installing pkg==4.3 in normal')
""",
"""
print(__import__('pkg').__version__)
""",
)
assert result.stdout.strip() == "2.0", str(result)
@pytest.mark.incompatible_with_test_venv
def test_build_env_isolation(script: PipTestEnvironment) -> None:
# Create dummy `pkg` wheel.
pkg_whl = create_basic_wheel_for_package(script, "pkg", "1.0")
# Install it to site packages.
script.pip_install_local(pkg_whl)
# And a copy in the user site.
script.pip_install_local("--ignore-installed", "--user", pkg_whl)
# And to another directory available through a .pth file.
target = script.scratch_path / "pth_install"
script.pip_install_local("-t", target, pkg_whl)
(script.site_packages_path / "build_requires.pth").write_text(str(target) + "\n")
# And finally to yet another directory available through PYTHONPATH.
target = script.scratch_path / "pypath_install"
script.pip_install_local("-t", target, pkg_whl)
script.environ["PYTHONPATH"] = target
run_with_build_env(
script,
"",
r"""
from distutils.sysconfig import get_python_lib
import sys
try:
import pkg
except ImportError:
pass
else:
print(
f'imported `pkg` from `{pkg.__file__}`',
file=sys.stderr)
print('system sites:\n ' + '\n '.join(sorted({
get_python_lib(plat_specific=0),
get_python_lib(plat_specific=1),
})), file=sys.stderr)
print('sys.path:\n ' + '\n '.join(sys.path), file=sys.stderr)
sys.exit(1)
""",
)
|
