RustPython
diff --git a/‎extra_tests/snippets/stdlib_datetime.py
Copy file name to clipboardExpand all lines: extra_tests/snippets/stdlib_datetime.py
+7-2Lines changed: 7 additions & 2 deletions b/‎extra_tests/snippets/stdlib_datetime.py
Copy file name to clipboardExpand all lines: extra_tests/snippets/stdlib_datetime.py
+7-2Lines changed: 7 additions & 2 deletions
@@ -131,8 +131,13 @@ def __init__(self, offset, name):
 assert_raises(NotImplementedError, ne.utcoffset, dt)
 assert_raises(NotImplementedError, ne.dst, dt)
 
-# unsupport format in strptime should returns arg itself
-assert_equal(_time.strftime("%?"), "%?")
+# unsupport format in strptime returns arg itself
+# in linux.
+if sys.platform == 'linux':
+    assert_equal(_time.strftime("%?"), "%?")
+elif sys.platform in ('darwin', 'win32'):
+# or return Value error in case Mac/Windows
+    with assert_raises(ValueError): _time.strftime("%?")
 
 # XXX: bug #1302
 # def test_normal(self):