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import os
import operator
import sys
import contextlib
import itertools
import unittest
from distutils.errors import DistutilsError, DistutilsOptionError
from distutils import log
from unittest import TestLoader
from pkg_resources import (
resource_listdir,
resource_exists,
normalize_path,
working_set,
evaluate_marker,
add_activation_listener,
require,
)
from .._importlib import metadata
from setuptools import Command
from setuptools.extern.more_itertools import unique_everseen
from setuptools.extern.jaraco.functools import pass_none
class ScanningLoader(TestLoader):
def __init__(self):
TestLoader.__init__(self)
self._visited = set()
def loadTestsFromModule(self, module, pattern=None):
"""Return a suite of all tests cases contained in the given module
If the module is a package, load tests from all the modules in it.
If the module has an ``additional_tests`` function, call it and add
the return value to the tests.
"""
if module in self._visited:
return None
self._visited.add(module)
tests = []
tests.append(TestLoader.loadTestsFromModule(self, module))
if hasattr(module, "additional_tests"):
tests.append(module.additional_tests())
if hasattr(module, '__path__'):
for file in resource_listdir(module.__name__, ''):
if file.endswith('.py') and file != '__init__.py':
submodule = module.__name__ + '.' + file[:-3]
else:
if resource_exists(module.__name__, file + '/__init__.py'):
submodule = module.__name__ + '.' + file
else:
continue
tests.append(self.loadTestsFromName(submodule))
if len(tests) != 1:
return self.suiteClass(tests)
else:
return tests[0] # don't create a nested suite for only one return
# adapted from jaraco.classes.properties:NonDataProperty
class NonDataProperty:
def __init__(self, fget):
self.fget = fget
def __get__(self, obj, objtype=None):
if obj is None:
return self
return self.fget(obj)
class test(Command):
"""Command to run unit tests after in-place build"""
description = "run unit tests after in-place build (deprecated)"
user_options = [
('test-module=', 'm', "Run 'test_suite' in specified module"),
(
'test-suite=',
's',
"Run single test, case or suite (e.g. 'module.test_suite')",
),
('test-runner=', 'r', "Test runner to use"),
]
def initialize_options(self):
self.test_suite = None
self.test_module = None
self.test_loader = None
self.test_runner = None
def finalize_options(self):
if self.test_suite and self.test_module:
msg = "You may specify a module or a suite, but not both"
raise DistutilsOptionError(msg)
if self.test_suite is None:
if self.test_module is None:
self.test_suite = self.distribution.test_suite
else:
self.test_suite = self.test_module + ".test_suite"
if self.test_loader is None:
self.test_loader = getattr(self.distribution, 'test_loader', None)
if self.test_loader is None:
self.test_loader = "setuptools.command.test:ScanningLoader"
if self.test_runner is None:
self.test_runner = getattr(self.distribution, 'test_runner', None)
@NonDataProperty
def test_args(self):
return list(self._test_args())
def _test_args(self):
if not self.test_suite:
yield 'discover'
if self.verbose:
yield '--verbose'
if self.test_suite:
yield self.test_suite
def with_project_on_sys_path(self, func):
"""
Backward compatibility for project_on_sys_path context.
"""
with self.project_on_sys_path():
func()
@contextlib.contextmanager
def project_on_sys_path(self, include_dists=[]):
self.run_command('egg_info')
# Build extensions in-place
self.reinitialize_command('build_ext', inplace=1)
self.run_command('build_ext')
ei_cmd = self.get_finalized_command("egg_info")
old_path = sys.path[:]
old_modules = sys.modules.copy()
try:
project_path = normalize_path(ei_cmd.egg_base)
sys.path.insert(0, project_path)
working_set.__init__()
add_activation_listener(lambda dist: dist.activate())
require('%s==%s' % (ei_cmd.egg_name, ei_cmd.egg_version))
with self.paths_on_pythonpath([project_path]):
yield
finally:
sys.path[:] = old_path
sys.modules.clear()
sys.modules.update(old_modules)
working_set.__init__()
@staticmethod
@contextlib.contextmanager
def paths_on_pythonpath(paths):
"""
Add the indicated paths to the head of the PYTHONPATH environment
variable so that subprocesses will also see the packages at
these paths.
Do this in a context that restores the value on exit.
"""
nothing = object()
orig_pythonpath = os.environ.get('PYTHONPATH', nothing)
current_pythonpath = os.environ.get('PYTHONPATH', '')
try:
prefix = os.pathsep.join(unique_everseen(paths))
to_join = filter(None, [prefix, current_pythonpath])
new_path = os.pathsep.join(to_join)
if new_path:
os.environ['PYTHONPATH'] = new_path
yield
finally:
if orig_pythonpath is nothing:
os.environ.pop('PYTHONPATH', None)
else:
os.environ['PYTHONPATH'] = orig_pythonpath
@staticmethod
def install_dists(dist):
"""
Install the requirements indicated by self.distribution and
return an iterable of the dists that were built.
"""
ir_d = dist.fetch_build_eggs(dist.install_requires)
tr_d = dist.fetch_build_eggs(dist.tests_require or [])
er_d = dist.fetch_build_eggs(
v
for k, v in dist.extras_require.items()
if k.startswith(':') and evaluate_marker(k[1:])
)
return itertools.chain(ir_d, tr_d, er_d)
def run(self):
self.announce(
"WARNING: Testing via this command is deprecated and will be "
"removed in a future version. Users looking for a generic test "
"entry point independent of test runner are encouraged to use "
"tox.",
log.WARN,
)
installed_dists = self.install_dists(self.distribution)
cmd = ' '.join(self._argv)
if self.dry_run:
self.announce('skipping "%s" (dry run)' % cmd)
return
self.announce('running "%s"' % cmd)
paths = map(operator.attrgetter('location'), installed_dists)
with self.paths_on_pythonpath(paths):
with self.project_on_sys_path():
self.run_tests()
def run_tests(self):
test = unittest.main(
None,
None,
self._argv,
testLoader=self._resolve_as_ep(self.test_loader),
testRunner=self._resolve_as_ep(self.test_runner),
exit=False,
)
if not test.result.wasSuccessful():
msg = 'Test failed: %s' % test.result
self.announce(msg, log.ERROR)
raise DistutilsError(msg)
@property
def _argv(self):
return ['unittest'] + self.test_args
@staticmethod
@pass_none
def _resolve_as_ep(val):
"""
Load the indicated attribute value, called, as a as if it were
specified as an entry point.
"""
return metadata.EntryPoint(value=val, name=None, group=None).load()()
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