diff options
Diffstat (limited to 'Lib/ctypes/test/test_find.py')
-rw-r--r-- | Lib/ctypes/test/test_find.py | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Lib/ctypes/test/test_find.py b/Lib/ctypes/test/test_find.py index 94b0b890b7..b99fdcba7b 100644 --- a/Lib/ctypes/test/test_find.py +++ b/Lib/ctypes/test/test_find.py @@ -69,5 +69,48 @@ class Test_OpenGL_libs(unittest.TestCase): self.assertFalse(os.path.lexists(test.support.TESTFN)) self.assertIsNone(result) + +@unittest.skipUnless(sys.platform.startswith('linux'), + 'Test only valid for Linux') +class LibPathFindTest(unittest.TestCase): + def test_find_on_libpath(self): + import subprocess + import tempfile + + try: + p = subprocess.Popen(['gcc', '--version'], stdout=subprocess.PIPE, + stderr=subprocess.DEVNULL) + out, _ = p.communicate() + except OSError: + raise unittest.SkipTest('gcc, needed for test, not available') + with tempfile.TemporaryDirectory() as d: + # create an empty temporary file + srcname = os.path.join(d, 'dummy.c') + libname = 'py_ctypes_test_dummy' + dstname = os.path.join(d, 'lib%s.so' % libname) + with open(srcname, 'w') as f: + pass + self.assertTrue(os.path.exists(srcname)) + # compile the file to a shared library + cmd = ['gcc', '-o', dstname, '--shared', + '-Wl,-soname,lib%s.so' % libname, srcname] + out = subprocess.check_output(cmd) + self.assertTrue(os.path.exists(dstname)) + # now check that the .so can't be found (since not in + # LD_LIBRARY_PATH) + self.assertIsNone(find_library(libname)) + # now add the location to LD_LIBRARY_PATH + with test.support.EnvironmentVarGuard() as env: + KEY = 'LD_LIBRARY_PATH' + if KEY not in env: + v = d + else: + v = '%s:%s' % (env[KEY], d) + env.set(KEY, v) + # now check that the .so can be found (since in + # LD_LIBRARY_PATH) + self.assertEqual(find_library(libname), 'lib%s.so' % libname) + + if __name__ == "__main__": unittest.main() |