add tests for dlerror and gdbm_* functions

Author: picnixz

Lib/test/test_ctypes/test_dlerror.py

@@ -1,7 +1,11 @@
+import _ctypes
 import os
+import platform
+import re
 import sys
+import test.support
 import unittest
-import platform
+
 
 FOO_C = r"""
 #include <unistd.h>
@@ -119,5 +123,17 @@ def test_null_dlsym(self):
             self.assertEqual(os.read(pipe_r, 2), b'OK')
 
 
+class TestCAPI(unittest.TestCase):
+
+    @unittest.skipUnless(hasattr(_ctypes, 'dlopen'), 'require ctypes.dlopen()')
+    @test.support.run_with_locales('LC_ALL', 'fr_FR.utf8', 'fr_FR.iso88591')
+    def test_localized_error(self):
+        with self.assertRaisesRegex(
+            OSError,
+            re.escape("foo.so: Ne peut ouvrir le fichier d'objet partagé"),
+        ):
+            _ctypes.dlopen('foo.so', 2)
+
+
 if __name__ == "__main__":
     unittest.main()

Lib/test/test_dbm_gnu.py

@@ -1,9 +1,11 @@
 from test import support
 from test.support import import_helper, cpython_only
 gdbm = import_helper.import_module("dbm.gnu") #skip if not supported
+import re
 import unittest
 import os
-from test.support.os_helper import TESTFN, TESTFN_NONASCII, unlink, FakePath
+from test.support.os_helper import (TESTFN, TESTFN_NONASCII,
+                                    create_empty_file, unlink, FakePath)
 
 
 filename = TESTFN
@@ -205,6 +207,11 @@ def test_clear(self):
                 self.assertNotIn(k, db)
             self.assertEqual(len(db), 0)
 
+    @support.run_with_locales('LC_ALL', 'fr_FR.UTF-8', 'fr_FR.iso88591')
+    def test_localized_error(self):
+        expect = re.escape('Base de données vide')
+        empty = create_empty_file(filename)
+        self.assertRaisesRegex(gdbm.error, expect, gdbm.open, filename, 'r')
 
 
 if __name__ == '__main__':