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test__osx_support.py
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"""
Test suite for _osx_support: shared OS X support functions.
"""
import os
import platform
import stat
import sys
import unittest
from test.support import os_helper
import _osx_support
@unittest.skipUnless(sys.platform.startswith("darwin"), "requires OS X")
class Test_OSXSupport(unittest.TestCase):
def setUp(self):
self.maxDiff = None
self.prog_name = 'bogus_program_xxxx'
self.temp_path_dir = os.path.abspath(os.getcwd())
self.env = self.enterContext(os_helper.EnvironmentVarGuard())
self.env.unset(
'CFLAGS', 'LDFLAGS', 'CPPFLAGS',
'BASECFLAGS', 'BLDSHARED', 'LDSHARED', 'CC',
'CXX', 'PY_CFLAGS', 'PY_LDFLAGS', 'PY_CPPFLAGS',
'PY_CORE_CFLAGS', 'PY_CORE_LDFLAGS'
)
def add_expected_saved_initial_values(self, config_vars, expected_vars):
# Ensure that the initial values for all modified config vars
# are also saved with modified keys.
expected_vars.update(('_OSX_SUPPORT_INITIAL_'+ k,
config_vars[k]) for k in config_vars
if config_vars[k] != expected_vars[k])
def test__find_executable(self):
if self.env['PATH']:
self.env['PATH'] = self.env['PATH'] + ':'
self.env['PATH'] = self.env['PATH'] + os.path.abspath(self.temp_path_dir)
os_helper.unlink(self.prog_name)
self.assertIsNone(_osx_support._find_executable(self.prog_name))
self.addCleanup(os_helper.unlink, self.prog_name)
with open(self.prog_name, 'w') as f:
f.write("#!/bin/sh\n/bin/echo OK\n")
os.chmod(self.prog_name, stat.S_IRWXU)
self.assertEqual(self.prog_name,
_osx_support._find_executable(self.prog_name))
def test__read_output(self):
if self.env['PATH']:
self.env['PATH'] = self.env['PATH'] + ':'
self.env['PATH'] = self.env['PATH'] + os.path.abspath(self.temp_path_dir)
os_helper.unlink(self.prog_name)
self.addCleanup(os_helper.unlink, self.prog_name)
with open(self.prog_name, 'w') as f:
f.write("#!/bin/sh\n/bin/echo ExpectedOutput\n")
os.chmod(self.prog_name, stat.S_IRWXU)
self.assertEqual('ExpectedOutput',
_osx_support._read_output(self.prog_name))
def test__find_build_tool(self):
out = _osx_support._find_build_tool('cc')
self.assertTrue(os.path.isfile(out),
'cc not found - check xcode-select')
def test__get_system_version(self):
self.assertTrue(platform.mac_ver()[0].startswith(
_osx_support._get_system_version()))
def test__remove_original_values(self):
config_vars = {
'CC': 'gcc-test -pthreads',
}
expected_vars = {
'CC': 'clang -pthreads',
}
cv = 'CC'
newvalue = 'clang -pthreads'
_osx_support._save_modified_value(config_vars, cv, newvalue)
self.assertNotEqual(expected_vars, config_vars)
_osx_support._remove_original_values(config_vars)
self.assertEqual(expected_vars, config_vars)
def test__save_modified_value(self):
config_vars = {
'CC': 'gcc-test -pthreads',
}
expected_vars = {
'CC': 'clang -pthreads',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
cv = 'CC'
newvalue = 'clang -pthreads'
_osx_support._save_modified_value(config_vars, cv, newvalue)
self.assertEqual(expected_vars, config_vars)
def test__save_modified_value_unchanged(self):
config_vars = {
'CC': 'gcc-test -pthreads',
}
expected_vars = config_vars.copy()
cv = 'CC'
newvalue = 'gcc-test -pthreads'
_osx_support._save_modified_value(config_vars, cv, newvalue)
self.assertEqual(expected_vars, config_vars)
def test__supports_universal_builds(self):
import platform
mac_ver_tuple = tuple(int(i) for i in
platform.mac_ver()[0].split('.')[0:2])
self.assertEqual(mac_ver_tuple >= (10, 4),
_osx_support._supports_universal_builds())
def test__find_appropriate_compiler(self):
compilers = (
('gcc-test', 'i686-apple-darwin11-llvm-gcc-4.2'),
('clang', 'clang version 3.1'),
)
config_vars = {
'CC': 'gcc-test -pthreads',
'CXX': 'cc++-test',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-test -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-test -bundle -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.4u.sdk -g',
}
expected_vars = {
'CC': 'clang -pthreads',
'CXX': 'clang++',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'clang -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'clang -bundle -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.4u.sdk -g',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
suffix = (':' + self.env['PATH']) if self.env['PATH'] else ''
self.env['PATH'] = os.path.abspath(self.temp_path_dir) + suffix
for c_name, c_output in compilers:
os_helper.unlink(c_name)
self.addCleanup(os_helper.unlink, c_name)
with open(c_name, 'w') as f:
f.write("#!/bin/sh\n/bin/echo " + c_output)
os.chmod(c_name, stat.S_IRWXU)
self.assertEqual(expected_vars,
_osx_support._find_appropriate_compiler(
config_vars))
def test__remove_universal_flags(self):
config_vars = {
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.4u.sdk -g',
}
expected_vars = {
'CFLAGS': '-fno-strict-aliasing -g -O3 ',
'LDFLAGS': ' -g',
'CPPFLAGS': '-I. ',
'BLDSHARED': 'gcc-4.0 -bundle -g',
'LDSHARED': 'gcc-4.0 -bundle -g',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
self.assertEqual(expected_vars,
_osx_support._remove_universal_flags(
config_vars))
def test__remove_universal_flags_alternate(self):
# bpo-38360: also test the alternate single-argument form of -isysroot
config_vars = {
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot/Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
'-isysroot/Developer/SDKs/MacOSX10.4u.sdk -g',
}
expected_vars = {
'CFLAGS': '-fno-strict-aliasing -g -O3 ',
'LDFLAGS': ' -g',
'CPPFLAGS': '-I. ',
'BLDSHARED': 'gcc-4.0 -bundle -g',
'LDSHARED': 'gcc-4.0 -bundle -g',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
self.assertEqual(expected_vars,
_osx_support._remove_universal_flags(
config_vars))
def test__remove_unsupported_archs(self):
config_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.4u.sdk -g',
}
expected_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch i386 ',
'LDFLAGS': ' -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.4u.sdk -g',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
suffix = (':' + self.env['PATH']) if self.env['PATH'] else ''
self.env['PATH'] = os.path.abspath(self.temp_path_dir) + suffix
c_name = 'clang'
os_helper.unlink(c_name)
self.addCleanup(os_helper.unlink, c_name)
# exit status 255 means no PPC support in this compiler chain
with open(c_name, 'w') as f:
f.write("#!/bin/sh\nexit 255")
os.chmod(c_name, stat.S_IRWXU)
self.assertEqual(expected_vars,
_osx_support._remove_unsupported_archs(
config_vars))
def test__override_all_archs(self):
self.env['ARCHFLAGS'] = '-arch x86_64'
config_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.4u.sdk -g',
}
expected_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch x86_64',
'LDFLAGS': ' -g -arch x86_64',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.4u.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -g -arch x86_64',
'LDSHARED': 'gcc-4.0 -bundle -isysroot '
'/Developer/SDKs/MacOSX10.4u.sdk -g -arch x86_64',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
self.assertEqual(expected_vars,
_osx_support._override_all_archs(
config_vars))
def test__check_for_unavailable_sdk(self):
config_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.1.sdk',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot /Developer/SDKs/MacOSX10.1.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.1.sdk -g',
}
expected_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 '
' ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. ',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
' -g',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
self.assertEqual(expected_vars,
_osx_support._check_for_unavailable_sdk(
config_vars))
def test__check_for_unavailable_sdk_alternate(self):
# bpo-38360: also test the alternate single-argument form of -isysroot
config_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 '
'-isysroot/Developer/SDKs/MacOSX10.1.sdk',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. -isysroot/Developer/SDKs/MacOSX10.1.sdk',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
'-isysroot/Developer/SDKs/MacOSX10.1.sdk -g',
}
expected_vars = {
'CC': 'clang',
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 '
' ',
'LDFLAGS': '-arch ppc -arch i386 -g',
'CPPFLAGS': '-I. ',
'BLDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 -g',
'LDSHARED': 'gcc-4.0 -bundle -arch ppc -arch i386 '
' -g',
}
self.add_expected_saved_initial_values(config_vars, expected_vars)
self.assertEqual(expected_vars,
_osx_support._check_for_unavailable_sdk(
config_vars))
def test_get_platform_osx(self):
# Note, get_platform_osx is currently tested more extensively
# indirectly by test_sysconfig and test_distutils
config_vars = {
'CFLAGS': '-fno-strict-aliasing -g -O3 -arch ppc -arch i386 '
'-isysroot /Developer/SDKs/MacOSX10.1.sdk',
'MACOSX_DEPLOYMENT_TARGET': '10.6',
}
result = _osx_support.get_platform_osx(config_vars, ' ', ' ', ' ')
self.assertEqual(('macosx', '10.6', 'fat'), result)
if __name__ == "__main__":
unittest.main()