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"""Tests for distutils._msvccompiler."""
import sys
import unittest
import os
from distutils.errors import DistutilsPlatformError
from distutils.tests import support
from test.support import run_unittest
SKIP_MESSAGE = (None if sys.platform == "win32" else
"These tests are only for win32")
@unittest.skipUnless(SKIP_MESSAGE is None, SKIP_MESSAGE)
class msvccompilerTestCase(support.TempdirManager,
unittest.TestCase):
def test_no_compiler(self):
import distutils._msvccompiler as _msvccompiler
# makes sure query_vcvarsall raises
# a DistutilsPlatformError if the compiler
# is not found
def _find_vcvarsall(plat_spec):
return None, None
old_find_vcvarsall = _msvccompiler._find_vcvarsall
_msvccompiler._find_vcvarsall = _find_vcvarsall
try:
self.assertRaises(DistutilsPlatformError,
_msvccompiler._get_vc_env,
'wont find this version')
finally:
_msvccompiler._find_vcvarsall = old_find_vcvarsall
def test_compiler_options(self):
import distutils._msvccompiler as _msvccompiler
# suppress path to vcruntime from _find_vcvarsall to
# check that /MT is added to compile options
old_find_vcvarsall = _msvccompiler._find_vcvarsall
def _find_vcvarsall(plat_spec):
return old_find_vcvarsall(plat_spec)[0], None
_msvccompiler._find_vcvarsall = _find_vcvarsall
try:
compiler = _msvccompiler.MSVCCompiler()
compiler.initialize()
self.assertIn('/MT', compiler.compile_options)
self.assertNotIn('/MD', compiler.compile_options)
finally:
_msvccompiler._find_vcvarsall = old_find_vcvarsall
def test_vcruntime_copy(self):
import distutils._msvccompiler as _msvccompiler
# force path to a known file - it doesn't matter
# what we copy as long as its name is not in
# _msvccompiler._BUNDLED_DLLS
old_find_vcvarsall = _msvccompiler._find_vcvarsall
def _find_vcvarsall(plat_spec):
return old_find_vcvarsall(plat_spec)[0], __file__
_msvccompiler._find_vcvarsall = _find_vcvarsall
try:
tempdir = self.mkdtemp()
compiler = _msvccompiler.MSVCCompiler()
compiler.initialize()
compiler._copy_vcruntime(tempdir)
self.assertTrue(os.path.isfile(os.path.join(
tempdir, os.path.basename(__file__))))
finally:
_msvccompiler._find_vcvarsall = old_find_vcvarsall
def test_vcruntime_skip_copy(self):
import distutils._msvccompiler as _msvccompiler
tempdir = self.mkdtemp()
compiler = _msvccompiler.MSVCCompiler()
compiler.initialize()
dll = compiler._vcruntime_redist
self.assertTrue(os.path.isfile(dll), dll or "<None>")
compiler._copy_vcruntime(tempdir)
self.assertFalse(os.path.isfile(os.path.join(
tempdir, os.path.basename(dll))), dll or "<None>")
def test_get_vc_env_unicode(self):
import distutils._msvccompiler as _msvccompiler
test_var = 'ṰḖṤṪ┅ṼẨṜ'
test_value = '₃⁴₅'
# Ensure we don't early exit from _get_vc_env
old_distutils_use_sdk = os.environ.pop('DISTUTILS_USE_SDK', None)
os.environ[test_var] = test_value
try:
env = _msvccompiler._get_vc_env('x86')
self.assertIn(test_var.lower(), env)
self.assertEqual(test_value, env[test_var.lower()])
finally:
os.environ.pop(test_var)
if old_distutils_use_sdk:
os.environ['DISTUTILS_USE_SDK'] = old_distutils_use_sdk
def test_get_vc2017(self):
import distutils._msvccompiler as _msvccompiler
# This function cannot be mocked, so pass it if we find VS 2017
# and mark it skipped if we do not.
version, path = _msvccompiler._find_vc2017()
if version:
self.assertGreaterEqual(version, 15)
self.assertTrue(os.path.isdir(path))
else:
raise unittest.SkipTest("VS 2017 is not installed")
def test_get_vc2015(self):
import distutils._msvccompiler as _msvccompiler
# This function cannot be mocked, so pass it if we find VS 2015
# and mark it skipped if we do not.
version, path = _msvccompiler._find_vc2015()
if version:
self.assertGreaterEqual(version, 14)
self.assertTrue(os.path.isdir(path))
else:
raise unittest.SkipTest("VS 2015 is not installed")
def test_suite():
return unittest.makeSuite(msvccompilerTestCase)
if __name__ == "__main__":
run_unittest(test_suite())
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