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.CondaPkg/env/lib/python3.11/distutils/tests/test_sysconfig.py

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+"""Tests for distutils.sysconfig."""
+import contextlib
+import os
+import shutil
+import subprocess
+import sys
+import textwrap
+import unittest
+
+from distutils import sysconfig
+from distutils.ccompiler import get_default_compiler
+from distutils.tests import support
+from test.support import run_unittest, swap_item, requires_subprocess, is_wasi
+from test.support.os_helper import TESTFN
+from test.support.warnings_helper import check_warnings
+
+
+class SysconfigTestCase(support.EnvironGuard, unittest.TestCase):
+    def setUp(self):
+        super(SysconfigTestCase, self).setUp()
+        self.makefile = None
+
+    def tearDown(self):
+        if self.makefile is not None:
+            os.unlink(self.makefile)
+        self.cleanup_testfn()
+        super(SysconfigTestCase, self).tearDown()
+
+    def cleanup_testfn(self):
+        if os.path.isfile(TESTFN):
+            os.remove(TESTFN)
+        elif os.path.isdir(TESTFN):
+            shutil.rmtree(TESTFN)
+
+    @unittest.skipIf(is_wasi, "Incompatible with WASI mapdir and OOT builds")
+    def test_get_config_h_filename(self):
+        config_h = sysconfig.get_config_h_filename()
+        self.assertTrue(os.path.isfile(config_h), config_h)
+
+    def test_get_python_lib(self):
+        # XXX doesn't work on Linux when Python was never installed before
+        #self.assertTrue(os.path.isdir(lib_dir), lib_dir)
+        # test for pythonxx.lib?
+        self.assertNotEqual(sysconfig.get_python_lib(),
+                            sysconfig.get_python_lib(prefix=TESTFN))
+
+    def test_get_config_vars(self):
+        cvars = sysconfig.get_config_vars()
+        self.assertIsInstance(cvars, dict)
+        self.assertTrue(cvars)
+
+    def test_srcdir(self):
+        # See Issues #15322, #15364.
+        srcdir = sysconfig.get_config_var('srcdir')
+
+        self.assertTrue(os.path.isabs(srcdir), srcdir)
+        self.assertTrue(os.path.isdir(srcdir), srcdir)
+
+        if sysconfig.python_build:
+            # The python executable has not been installed so srcdir
+            # should be a full source checkout.
+            Python_h = os.path.join(srcdir, 'Include', 'Python.h')
+            self.assertTrue(os.path.exists(Python_h), Python_h)
+            # <srcdir>/PC/pyconfig.h always exists even if unused on POSIX.
+            pyconfig_h = os.path.join(srcdir, 'PC', 'pyconfig.h')
+            self.assertTrue(os.path.exists(pyconfig_h), pyconfig_h)
+            pyconfig_h_in = os.path.join(srcdir, 'pyconfig.h.in')
+            self.assertTrue(os.path.exists(pyconfig_h_in), pyconfig_h_in)
+        elif os.name == 'posix':
+            self.assertEqual(
+                os.path.dirname(sysconfig.get_makefile_filename()),
+                srcdir)
+
+    def test_srcdir_independent_of_cwd(self):
+        # srcdir should be independent of the current working directory
+        # See Issues #15322, #15364.
+        srcdir = sysconfig.get_config_var('srcdir')
+        cwd = os.getcwd()
+        try:
+            os.chdir('..')
+            srcdir2 = sysconfig.get_config_var('srcdir')
+        finally:
+            os.chdir(cwd)
+        self.assertEqual(srcdir, srcdir2)
+
+    def customize_compiler(self):
+        # make sure AR gets caught
+        class compiler:
+            compiler_type = 'unix'
+
+            def set_executables(self, **kw):
+                self.exes = kw
+
+        sysconfig_vars = {
+            'AR': 'sc_ar',
+            'CC': 'sc_cc',
+            'CXX': 'sc_cxx',
+            'ARFLAGS': '--sc-arflags',
+            'CFLAGS': '--sc-cflags',
+            'CCSHARED': '--sc-ccshared',
+            'LDSHARED': 'sc_ldshared',
+            'SHLIB_SUFFIX': 'sc_shutil_suffix',
+
+            # On macOS, disable _osx_support.customize_compiler()
+            'CUSTOMIZED_OSX_COMPILER': 'True',
+        }
+
+        comp = compiler()
+        with contextlib.ExitStack() as cm:
+            for key, value in sysconfig_vars.items():
+                cm.enter_context(swap_item(sysconfig._config_vars, key, value))
+            sysconfig.customize_compiler(comp)
+
+        return comp
+
+    @unittest.skipUnless(get_default_compiler() == 'unix',
+                         'not testing if default compiler is not unix')
+    def test_customize_compiler(self):
+        # Make sure that sysconfig._config_vars is initialized
+        sysconfig.get_config_vars()
+
+        os.environ['AR'] = 'env_ar'
+        os.environ['CC'] = 'env_cc'
+        os.environ['CPP'] = 'env_cpp'
+        os.environ['CXX'] = 'env_cxx --env-cxx-flags'
+        os.environ['LDSHARED'] = 'env_ldshared'
+        os.environ['LDFLAGS'] = '--env-ldflags'
+        os.environ['ARFLAGS'] = '--env-arflags'
+        os.environ['CFLAGS'] = '--env-cflags'
+        os.environ['CPPFLAGS'] = '--env-cppflags'
+
+        comp = self.customize_compiler()
+        self.assertEqual(comp.exes['archiver'],
+                         'env_ar --env-arflags')
+        self.assertEqual(comp.exes['preprocessor'],
+                         'env_cpp --env-cppflags')
+        self.assertEqual(comp.exes['compiler'],
+                         'env_cc --sc-cflags --env-cflags --env-cppflags')
+        self.assertEqual(comp.exes['compiler_so'],
+                         ('env_cc --sc-cflags '
+                          '--env-cflags ''--env-cppflags --sc-ccshared'))
+        self.assertEqual(comp.exes['compiler_cxx'],
+                         'env_cxx --env-cxx-flags')
+        self.assertEqual(comp.exes['linker_exe'],
+                         'env_cc')
+        self.assertEqual(comp.exes['linker_so'],
+                         ('env_ldshared --env-ldflags --env-cflags'
+                          ' --env-cppflags'))
+        self.assertEqual(comp.shared_lib_extension, 'sc_shutil_suffix')
+
+        del os.environ['AR']
+        del os.environ['CC']
+        del os.environ['CPP']
+        del os.environ['CXX']
+        del os.environ['LDSHARED']
+        del os.environ['LDFLAGS']
+        del os.environ['ARFLAGS']
+        del os.environ['CFLAGS']
+        del os.environ['CPPFLAGS']
+
+        comp = self.customize_compiler()
+        self.assertEqual(comp.exes['archiver'],
+                         'sc_ar --sc-arflags')
+        self.assertEqual(comp.exes['preprocessor'],
+                         'sc_cc -E')
+        self.assertEqual(comp.exes['compiler'],
+                         'sc_cc --sc-cflags')
+        self.assertEqual(comp.exes['compiler_so'],
+                         'sc_cc --sc-cflags --sc-ccshared')
+        self.assertEqual(comp.exes['compiler_cxx'],
+                         'sc_cxx')
+        self.assertEqual(comp.exes['linker_exe'],
+                         'sc_cc')
+        self.assertEqual(comp.exes['linker_so'],
+                         'sc_ldshared')
+        self.assertEqual(comp.shared_lib_extension, 'sc_shutil_suffix')
+
+    def test_parse_makefile_base(self):
+        self.makefile = TESTFN
+        fd = open(self.makefile, 'w')
+        try:
+            fd.write(r"CONFIG_ARGS=  '--arg1=optarg1' 'ENV=LIB'" '\n')
+            fd.write('VAR=$OTHER\nOTHER=foo')
+        finally:
+            fd.close()
+        d = sysconfig.parse_makefile(self.makefile)
+        self.assertEqual(d, {'CONFIG_ARGS': "'--arg1=optarg1' 'ENV=LIB'",
+                             'OTHER': 'foo'})
+
+    def test_parse_makefile_literal_dollar(self):
+        self.makefile = TESTFN
+        fd = open(self.makefile, 'w')
+        try:
+            fd.write(r"CONFIG_ARGS=  '--arg1=optarg1' 'ENV=\$$LIB'" '\n')
+            fd.write('VAR=$OTHER\nOTHER=foo')
+        finally:
+            fd.close()
+        d = sysconfig.parse_makefile(self.makefile)
+        self.assertEqual(d, {'CONFIG_ARGS': r"'--arg1=optarg1' 'ENV=\$LIB'",
+                             'OTHER': 'foo'})
+
+
+    def test_sysconfig_module(self):
+        import sysconfig as global_sysconfig
+        self.assertEqual(global_sysconfig.get_config_var('CFLAGS'),
+                         sysconfig.get_config_var('CFLAGS'))
+        self.assertEqual(global_sysconfig.get_config_var('LDFLAGS'),
+                         sysconfig.get_config_var('LDFLAGS'))
+
+    @unittest.skipIf(sysconfig.get_config_var('CUSTOMIZED_OSX_COMPILER'),
+                     'compiler flags customized')
+    def test_sysconfig_compiler_vars(self):
+        # On OS X, binary installers support extension module building on
+        # various levels of the operating system with differing Xcode
+        # configurations.  This requires customization of some of the
+        # compiler configuration directives to suit the environment on
+        # the installed machine.  Some of these customizations may require
+        # running external programs and, so, are deferred until needed by
+        # the first extension module build.  With Python 3.3, only
+        # the Distutils version of sysconfig is used for extension module
+        # builds, which happens earlier in the Distutils tests.  This may
+        # cause the following tests to fail since no tests have caused
+        # the global version of sysconfig to call the customization yet.
+        # The solution for now is to simply skip this test in this case.
+        # The longer-term solution is to only have one version of sysconfig.
+
+        import sysconfig as global_sysconfig
+        if sysconfig.get_config_var('CUSTOMIZED_OSX_COMPILER'):
+            self.skipTest('compiler flags customized')
+        self.assertEqual(global_sysconfig.get_config_var('LDSHARED'),
+                         sysconfig.get_config_var('LDSHARED'))
+        self.assertEqual(global_sysconfig.get_config_var('CC'),
+                         sysconfig.get_config_var('CC'))
+
+    @requires_subprocess()
+    def test_customize_compiler_before_get_config_vars(self):
+        # Issue #21923: test that a Distribution compiler
+        # instance can be called without an explicit call to
+        # get_config_vars().
+        with open(TESTFN, 'w') as f:
+            f.writelines(textwrap.dedent('''\
+                from distutils.core import Distribution
+                config = Distribution().get_command_obj('config')
+                # try_compile may pass or it may fail if no compiler
+                # is found but it should not raise an exception.
+                rc = config.try_compile('int x;')
+                '''))
+        p = subprocess.Popen([str(sys.executable), TESTFN],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.STDOUT,
+                universal_newlines=True)
+        outs, errs = p.communicate()
+        self.assertEqual(0, p.returncode, "Subprocess failed: " + outs)
+
+
+def test_suite():
+    suite = unittest.TestSuite()
+    suite.addTest(unittest.TestLoader().loadTestsFromTestCase(SysconfigTestCase))
+    return suite
+
+
+if __name__ == '__main__':
+    run_unittest(test_suite())