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import subprocess
import sys
from setuptools._path import paths_on_pythonpath
from . import namespaces
class TestNamespaces:
def test_mixed_site_and_non_site(self, tmpdir):
"""
Installing two packages sharing the same namespace, one installed
to a site dir and the other installed just to a path on PYTHONPATH
should leave the namespace in tact and both packages reachable by
import.
"""
pkg_A = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
pkg_B = namespaces.build_namespace_package(tmpdir, 'myns.pkgB')
site_packages = tmpdir / 'site-packages'
path_packages = tmpdir / 'path-packages'
targets = site_packages, path_packages
# use pip to install to the target directory
install_cmd = [
sys.executable,
'-m',
'pip.__main__',
'install',
str(pkg_A),
'-t',
str(site_packages),
]
subprocess.check_call(install_cmd)
namespaces.make_site_dir(site_packages)
install_cmd = [
sys.executable,
'-m',
'pip.__main__',
'install',
str(pkg_B),
'-t',
str(path_packages),
]
subprocess.check_call(install_cmd)
try_import = [
sys.executable,
'-c',
'import myns.pkgA; import myns.pkgB',
]
with paths_on_pythonpath(map(str, targets)):
subprocess.check_call(try_import)
def test_namespace_package_installed_and_cwd(self, tmpdir):
"""
Installing a namespace packages but also having it in the current
working directory, only one version should take precedence.
"""
pkg_A = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
target = tmpdir / 'packages'
# use pip to install to the target directory
install_cmd = [
sys.executable,
'-m',
'pip.__main__',
'install',
str(pkg_A),
'-t',
str(target),
]
subprocess.check_call(install_cmd)
namespaces.make_site_dir(target)
# ensure that package imports
pkg_resources_imp = [
sys.executable,
'-c',
'import myns.pkgA',
]
with paths_on_pythonpath([str(target)]):
subprocess.check_call(pkg_resources_imp, cwd=str(pkg_A))