1 files changed, 2 insertions, 2 deletions
diff --git a/src/engine/SCons/Variables/BoolVariableTests.py b/src/engine/SCons/Variables/BoolVariableTests.py
index 88f64ed..8ffb079 100644
--- a/src/engine/SCons/Variables/BoolVariableTests.py
+++ b/src/engine/SCons/Variables/BoolVariableTests.py
@@ -39,8 +39,8 @@ class BoolVariableTestCase(unittest.TestCase):
         assert o.key == 'test', o.key
         assert o.help == 'test option help (yes|no)', o.help
         assert o.default == 0, o.default
-        assert not o.validator is None, o.validator
-        assert not o.converter is None, o.converter
+        assert o.validator is not None, o.validator
+        assert o.converter is not None, o.converter
 
     def test_converter(self):
         """Test the BoolVariable converter"""