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test__osx_support.py
""" 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 = os_helper.EnvironmentVarGuard() self.addCleanup(self.env.__exit__) for cv in ('CFLAGS', 'LDFLAGS', 'CPPFLAGS', 'BASECFLAGS', 'BLDSHARED', 'LDSHARED', 'CC', 'CXX', 'PY_CFLAGS', 'PY_LDFLAGS', 'PY_CPPFLAGS', 'PY_CORE_CFLAGS', 'PY_CORE_LDFLAGS'): if cv in self.env: self.env.unset(cv) 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()