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