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"""Tests for setuptools.find_packages()."""
import os
import sys
import shutil
import tempfile
import platform
import pytest
import setuptools
from setuptools import find_packages
find_420_packages = setuptools.PEP420PackageFinder.find
# modeled after CPython's test.support.can_symlink
def can_symlink():
TESTFN = tempfile.mktemp()
symlink_path = TESTFN + "can_symlink"
try:
os.symlink(TESTFN, symlink_path)
can = True
except (OSError, NotImplementedError, AttributeError):
can = False
else:
os.remove(symlink_path)
globals().update(can_symlink=lambda: can)
return can
def has_symlink():
bad_symlink = (
# Windows symlink directory detection is broken on Python 3.2
platform.system() == 'Windows' and sys.version_info[:2] == (3,2)
)
return can_symlink() and not bad_symlink
class TestFindPackages:
def setup_method(self, method):
self.dist_dir = tempfile.mkdtemp()
self._make_pkg_structure()
def teardown_method(self, method):
shutil.rmtree(self.dist_dir)
def _make_pkg_structure(self):
"""Make basic package structure.
dist/
docs/
conf.py
pkg/
__pycache__/
nspkg/
mod.py
subpkg/
assets/
asset
__init__.py
setup.py
"""
self.docs_dir = self._mkdir('docs', self.dist_dir)
self._touch('conf.py', self.docs_dir)
self.pkg_dir = self._mkdir('pkg', self.dist_dir)
self._mkdir('__pycache__', self.pkg_dir)
self.ns_pkg_dir = self._mkdir('nspkg', self.pkg_dir)
self._touch('mod.py', self.ns_pkg_dir)
self.sub_pkg_dir = self._mkdir('subpkg', self.pkg_dir)
self.asset_dir = self._mkdir('assets', self.sub_pkg_dir)
self._touch('asset', self.asset_dir)
self._touch('__init__.py', self.sub_pkg_dir)
self._touch('setup.py', self.dist_dir)
def _mkdir(self, path, parent_dir=None):
if parent_dir:
path = os.path.join(parent_dir, path)
os.mkdir(path)
return path
def _touch(self, path, dir_=None):
if dir_:
path = os.path.join(dir_, path)
fp = open(path, 'w')
fp.close()
return path
def test_regular_package(self):
self._touch('__init__.py', self.pkg_dir)
packages = find_packages(self.dist_dir)
assert packages == ['pkg', 'pkg.subpkg']
def test_exclude(self):
self._touch('__init__.py', self.pkg_dir)
packages = find_packages(self.dist_dir, exclude=('pkg.*',))
assert packages == ['pkg']
def test_include_excludes_other(self):
"""
If include is specified, other packages should be excluded.
"""
self._touch('__init__.py', self.pkg_dir)
alt_dir = self._mkdir('other_pkg', self.dist_dir)
self._touch('__init__.py', alt_dir)
packages = find_packages(self.dist_dir, include=['other_pkg'])
assert packages == ['other_pkg']
def test_dir_with_dot_is_skipped(self):
shutil.rmtree(os.path.join(self.dist_dir, 'pkg/subpkg/assets'))
data_dir = self._mkdir('some.data', self.pkg_dir)
self._touch('__init__.py', data_dir)
self._touch('file.dat', data_dir)
packages = find_packages(self.dist_dir)
assert 'pkg.some.data' not in packages
def test_dir_with_packages_in_subdir_is_excluded(self):
"""
Ensure that a package in a non-package such as build/pkg/__init__.py
is excluded.
"""
build_dir = self._mkdir('build', self.dist_dir)
build_pkg_dir = self._mkdir('pkg', build_dir)
self._touch('__init__.py', build_pkg_dir)
packages = find_packages(self.dist_dir)
assert 'build.pkg' not in packages
@pytest.mark.skipif(not has_symlink(), reason='Symlink support required')
def test_symlinked_packages_are_included(self):
"""
A symbolically-linked directory should be treated like any other
directory when matched as a package.
Create a link from lpkg -> pkg.
"""
self._touch('__init__.py', self.pkg_dir)
linked_pkg = os.path.join(self.dist_dir, 'lpkg')
os.symlink('pkg', linked_pkg)
assert os.path.isdir(linked_pkg)
packages = find_packages(self.dist_dir)
assert 'lpkg' in packages
def _assert_packages(self, actual, expected):
assert set(actual) == set(expected)
def test_pep420_ns_package(self):
packages = find_420_packages(
self.dist_dir, include=['pkg*'], exclude=['pkg.subpkg.assets'])
self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
def test_pep420_ns_package_no_includes(self):
packages = find_420_packages(
self.dist_dir, exclude=['pkg.subpkg.assets'])
self._assert_packages(packages, ['docs', 'pkg', 'pkg.nspkg', 'pkg.subpkg'])
def test_pep420_ns_package_no_includes_or_excludes(self):
packages = find_420_packages(self.dist_dir)
expected = [
'docs', 'pkg', 'pkg.nspkg', 'pkg.subpkg', 'pkg.subpkg.assets']
self._assert_packages(packages, expected)
def test_regular_package_with_nested_pep420_ns_packages(self):
self._touch('__init__.py', self.pkg_dir)
packages = find_420_packages(
self.dist_dir, exclude=['docs', 'pkg.subpkg.assets'])
self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
def test_pep420_ns_package_no_non_package_dirs(self):
shutil.rmtree(self.docs_dir)
shutil.rmtree(os.path.join(self.dist_dir, 'pkg/subpkg/assets'))
packages = find_420_packages(self.dist_dir)
self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
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