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✏️ Editing: test_unixccompiler.py

"""Tests for distutils.unixccompiler."""
import sys
import unittest
from test.support import run_unittest
from test.support.os_helper import EnvironmentVarGuard

from distutils import sysconfig
from distutils.unixccompiler import UnixCCompiler

class UnixCCompilerTestCase(unittest.TestCase):

def setUp(self):
        self._backup_platform = sys.platform
        self._backup_get_config_var = sysconfig.get_config_var
        self._backup_config_vars = dict(sysconfig._config_vars)
        class CompilerWrapper(UnixCCompiler):
            def rpath_foo(self):
                return self.runtime_library_dir_option('/foo')
        self.cc = CompilerWrapper()

def tearDown(self):
        sys.platform = self._backup_platform
        sysconfig.get_config_var = self._backup_get_config_var
        sysconfig._config_vars.clear()
        sysconfig._config_vars.update(self._backup_config_vars)

@unittest.skipIf(sys.platform == 'win32', "can't test on Windows")
    def test_runtime_libdir_option(self):
        # Issue#5900
        #
        # Ensure RUNPATH is added to extension modules with RPATH if
        # GNU ld is used

# darwin
        sys.platform = 'darwin'
        self.assertEqual(self.cc.rpath_foo(), '-L/foo')

# hp-ux
        sys.platform = 'hp-ux'
        old_gcv = sysconfig.get_config_var
        def gcv(v):
            return 'xxx'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), ['+s', '-L/foo'])

def gcv(v):
            return 'gcc'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), ['-Wl,+s', '-L/foo'])

def gcv(v):
            return 'g++'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), ['-Wl,+s', '-L/foo'])

sysconfig.get_config_var = old_gcv

# GCC GNULD
        sys.platform = 'bar'
        def gcv(v):
            if v == 'CC':
                return 'gcc'
            elif v == 'GNULD':
                return 'yes'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), '-Wl,--enable-new-dtags,-R/foo')

# GCC non-GNULD
        sys.platform = 'bar'
        def gcv(v):
            if v == 'CC':
                return 'gcc'
            elif v == 'GNULD':
                return 'no'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), '-Wl,-R/foo')

# GCC GNULD with fully qualified configuration prefix
        # see #7617
        sys.platform = 'bar'
        def gcv(v):
            if v == 'CC':
                return 'x86_64-pc-linux-gnu-gcc-4.4.2'
            elif v == 'GNULD':
                return 'yes'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), '-Wl,--enable-new-dtags,-R/foo')

# non-GCC GNULD
        sys.platform = 'bar'
        def gcv(v):
            if v == 'CC':
                return 'cc'
            elif v == 'GNULD':
                return 'yes'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), '-R/foo')

# non-GCC non-GNULD
        sys.platform = 'bar'
        def gcv(v):
            if v == 'CC':
                return 'cc'
            elif v == 'GNULD':
                return 'no'
        sysconfig.get_config_var = gcv
        self.assertEqual(self.cc.rpath_foo(), '-R/foo')

@unittest.skipUnless(sys.platform == 'darwin', 'test only relevant for OS X')
    def test_osx_cc_overrides_ldshared(self):
        # Issue #18080:
        # ensure that setting CC env variable also changes default linker
        def gcv(v):
            if v == 'LDSHARED':
                return 'gcc-4.2 -bundle -undefined dynamic_lookup '
            return 'gcc-4.2'
        sysconfig.get_config_var = gcv
        with EnvironmentVarGuard() as env:
            env['CC'] = 'my_cc'
            del env['LDSHARED']
            sysconfig.customize_compiler(self.cc)
        self.assertEqual(self.cc.linker_so[0], 'my_cc')

@unittest.skipUnless(sys.platform == 'darwin', 'test only relevant for OS X')
    def test_osx_explicit_ldshared(self):
        # Issue #18080:
        # ensure that setting CC env variable does not change
        #   explicit LDSHARED setting for linker
        def gcv(v):
            if v == 'LDSHARED':
                return 'gcc-4.2 -bundle -undefined dynamic_lookup '
            return 'gcc-4.2'
        sysconfig.get_config_var = gcv
        with EnvironmentVarGuard() as env:
            env['CC'] = 'my_cc'
            env['LDSHARED'] = 'my_ld -bundle -dynamic'
            sysconfig.customize_compiler(self.cc)
        self.assertEqual(self.cc.linker_so[0], 'my_ld')

def test_suite():
    return unittest.makeSuite(UnixCCompilerTestCase)

if __name__ == "__main__":
    run_unittest(test_suite())

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