Issue #13415: Skip test_os.test_unset_error on FreeBSD < 7 and OS X < 10.6

(where unsetenv() doesn't return a value).

diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index ef5f8052aae1f4ab81c75c32ea389bcd84ee3681..79e66fb05612da911638a4f3ac12a7de39cdf2d9 100644 (file)
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -447,6 +447,10 @@ class EnvironTests(mapping_tests.BasicTestMappingProtocol):
         value_str = value.decode(sys.getfilesystemencoding(), 'surrogateescape')
         self.assertEqual(os.environ['bytes'], value_str)
 
+    # On FreeBSD < 7 and OS X < 10.6, unsetenv() doesn't return a value (issue
+    # #13415).
+    @support.requires_freebsd_version(7)
+    @support.requires_mac_ver(10, 6)
     def test_unset_error(self):
         if sys.platform == "win32":
             # an environment variable is limited to 32,767 characters