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"""Tests for distutils.cygwinccompiler."""
import unittest
import sys
import os
from io import StringIO
import subprocess
from distutils import cygwinccompiler
from distutils.cygwinccompiler import (CygwinCCompiler, check_config_h,
CONFIG_H_OK, CONFIG_H_NOTOK,
CONFIG_H_UNCERTAIN, get_versions)
from distutils.tests import support
class FakePopen(object):
test_class = None
def __init__(self, cmd, shell, stdout):
self.cmd = cmd.split()[0]
exes = self.test_class._exes
if self.cmd in exes:
self.stdout = StringIO(exes[self.cmd])
else:
self.stdout = os.popen(cmd, 'r')
class CygwinCCompilerTestCase(support.TempdirManager,
unittest.TestCase):
def setUp(self):
super(CygwinCCompilerTestCase, self).setUp()
self.version = sys.version
self.python_h = os.path.join(self.mkdtemp(), 'python.h')
from distutils import sysconfig
self.old_get_config_h_filename = sysconfig.get_config_h_filename
sysconfig.get_config_h_filename = self._get_config_h_filename
self.old_find_executable = cygwinccompiler.find_executable
cygwinccompiler.find_executable = self._find_executable
self._exes = {}
self.old_popen = cygwinccompiler.Popen
FakePopen.test_class = self
cygwinccompiler.Popen = FakePopen
def tearDown(self):
sys.version = self.version
from distutils import sysconfig
sysconfig.get_config_h_filename = self.old_get_config_h_filename
cygwinccompiler.find_executable = self.old_find_executable
cygwinccompiler.Popen = self.old_popen
super(CygwinCCompilerTestCase, self).tearDown()
def _get_config_h_filename(self):
return self.python_h
def _find_executable(self, name):
if name in self._exes:
return name
return None
def test_check_config_h(self):
# check_config_h looks for "GCC" in sys.version first
# returns CONFIG_H_OK if found
sys.version = ('2.6.1 (r261:67515, Dec 6 2008, 16:42:21) \n[GCC '
'4.0.1 (Apple Computer, Inc. build 5370)]')
self.assertEquals(check_config_h()[0], CONFIG_H_OK)
# then it tries to see if it can find "__GNUC__" in pyconfig.h
sys.version = 'something without the *CC word'
# if the file doesn't exist it returns CONFIG_H_UNCERTAIN
self.assertEquals(check_config_h()[0], CONFIG_H_UNCERTAIN)
# if it exists but does not contain __GNUC__, it returns CONFIG_H_NOTOK
self.write_file(self.python_h, 'xxx')
self.assertEquals(check_config_h()[0], CONFIG_H_NOTOK)
# and CONFIG_H_OK if __GNUC__ is found
self.write_file(self.python_h, 'xxx __GNUC__ xxx')
self.assertEquals(check_config_h()[0], CONFIG_H_OK)
def test_get_versions(self):
# get_versions calls distutils.spawn.find_executable on
# 'gcc', 'ld' and 'dllwrap'
self.assertEquals(get_versions(), (None, None, None))
# Let's fake we have 'gcc' and it returns '3.4.5'
self._exes['gcc'] = 'gcc (GCC) 3.4.5 (mingw special)\nFSF'
res = get_versions()
self.assertEquals(str(res[0]), '3.4.5')
# and let's see what happens when the version
# doesn't match the regular expression
# (\d+\.\d+(\.\d+)*)
self._exes['gcc'] = 'very strange output'
res = get_versions()
self.assertEquals(res[0], None)
# same thing for ld
self._exes['ld'] = 'GNU ld version 2.17.50 20060824'
res = get_versions()
self.assertEquals(str(res[1]), '2.17.50')
self._exes['ld'] = '@(#)PROGRAM:ld PROJECT:ld64-77'
res = get_versions()
self.assertEquals(res[1], None)
# and dllwrap
self._exes['dllwrap'] = 'GNU dllwrap 2.17.50 20060824\nFSF'
res = get_versions()
self.assertEquals(str(res[2]), '2.17.50')
self._exes['dllwrap'] = 'Cheese Wrap'
res = get_versions()
self.assertEquals(res[2], None)
def test_suite():
return unittest.makeSuite(CygwinCCompilerTestCase)
if __name__ == '__main__':
test_support.run_unittest(test_suite())
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