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from __future__ import with_statement
import os
import shutil
import subprocess
import sys
import tempfile
import pkg_resources
from .util import rmtree, open_config
D2TO1_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__),
os.pardir, os.pardir))
def fake_d2to1_dist():
# Fake a d2to1 distribution from the d2to1 package that these tests reside
# in and make sure it's active on the path with the appropriate entry
# points installed
class _FakeProvider(pkg_resources.EmptyProvider):
"""A fake metadata provider that does almost nothing except to return
entry point metadata.
"""
def has_metadata(self, name):
return name == 'entry_points.txt'
def get_metadata(self, name):
if name == 'entry_points.txt':
return '[distutils.setup_keywords]\nd2to1 = d2to1.core:d2to1\n'
else:
return ''
sys.path.insert(0, D2TO1_DIR)
if 'd2to1' in sys.modules:
del sys.modules['d2to1']
if 'd2to1' in pkg_resources.working_set.by_key:
del pkg_resources.working_set.by_key['d2to1']
dist = pkg_resources.Distribution(location=D2TO1_DIR, project_name='d2to1',
metadata=_FakeProvider())
pkg_resources.working_set.add(dist)
class D2to1TestCase(object):
def setup(self):
self.temp_dir = tempfile.mkdtemp(prefix='d2to1-test-')
self.package_dir = os.path.join(self.temp_dir, 'testpackage')
shutil.copytree(os.path.join(os.path.dirname(__file__), 'testpackage'),
self.package_dir)
self.oldcwd = os.getcwd()
os.chdir(self.package_dir)
def teardown(self):
os.chdir(self.oldcwd)
# Remove d2to1.testpackage from sys.modules so that it can be freshly
# re-imported by the next test
for k in list(sys.modules):
if (k == 'd2to1_testpackage' or
k.startswith('d2to1_testpackage.')):
del sys.modules[k]
rmtree(self.temp_dir)
def run_setup(self, *args):
cmd = ('-c',
'import sys;sys.path.insert(0, %r);'
'from d2to1.tests import fake_d2to1_dist;'
'from d2to1.extern.six import exec_;'
'fake_d2to1_dist();exec_(open("setup.py").read())' % D2TO1_DIR)
return self._run_cmd(sys.executable, cmd + args)
def run_svn(self, *args):
return self._run_cmd('svn', args)
def _run_cmd(self, cmd, args):
"""
Runs a command, with the given argument list, in the root of the test
working copy--returns the stdout and stderr streams and the exit code
from the subprocess.
"""
os.chdir(self.package_dir)
p = subprocess.Popen([cmd] + list(args), stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
streams = tuple(s.decode('latin1').strip() for s in p.communicate())
print(streams)
return (streams) + (p.returncode,)
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