cpython/Lib/distutils/tests/test_build_ext.py

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import sys
import os
import tempfile
import shutil
from StringIO import StringIO
from distutils.core import Extension, Distribution
from distutils.command.build_ext import build_ext
from distutils import sysconfig
import unittest
from test import test_support
class BuildExtTestCase(unittest.TestCase):
def setUp(self):
# Create a simple test environment
# Note that we're making changes to sys.path
self.tmp_dir = tempfile.mkdtemp(prefix="pythontest_")
self.sys_path = sys.path[:]
sys.path.append(self.tmp_dir)
xx_c = os.path.join(sysconfig.project_base, 'Modules', 'xxmodule.c')
shutil.copy(xx_c, self.tmp_dir)
def test_build_ext(self):
xx_c = os.path.join(self.tmp_dir, 'xxmodule.c')
xx_ext = Extension('xx', [xx_c])
dist = Distribution({'name': 'xx', 'ext_modules': [xx_ext]})
dist.package_dir = self.tmp_dir
cmd = build_ext(dist)
cmd.build_lib = self.tmp_dir
cmd.build_temp = self.tmp_dir
old_stdout = sys.stdout
if not test_support.verbose:
# silence compiler output
sys.stdout = StringIO()
try:
cmd.ensure_finalized()
cmd.run()
finally:
sys.stdout = old_stdout
import xx
for attr in ('error', 'foo', 'new', 'roj'):
self.assert_(hasattr(xx, attr))
self.assertEquals(xx.foo(2, 5), 7)
self.assertEquals(xx.foo(13,15), 28)
self.assertEquals(xx.new().demo(), None)
doc = 'This is a template module just for instruction.'
self.assertEquals(xx.__doc__, doc)
self.assert_(isinstance(xx.Null(), xx.Null))
self.assert_(isinstance(xx.Str(), xx.Str))
def tearDown(self):
# Get everything back to normal
test_support.unload('xx')
sys.path = self.sys_path
# XXX on Windows the test leaves a directory with xx.pyd in TEMP
shutil.rmtree(self.tmp_dir, False if os.name != "nt" else True)
def test_suite():
if not sysconfig.python_build:
if test_support.verbose:
print 'test_build_ext: The test must be run in a python build dir'
return unittest.TestSuite()
else: return unittest.makeSuite(BuildExtTestCase)
if __name__ == '__main__':
test_support.run_unittest(test_suite())