Add additional test

Author: LonelyCat124

src/psyclone/tests/psyGen_test.py

@@ -220,6 +220,22 @@ def apply(self, node, **kwargs):
     # Check that we allow the fetching of the TestTrans option.
     assert trans.get_option("valid", valid=True)
 
+    # Test that we use current transformations default value
+    # over an inherited value.
+    class TestTrans3(Transformation):
+        '''Utility transformation to test methods of the abstract
+        Transformation class with _SUB_TRANSFORMATIONS.'''
+        _SUB_TRANSFORMATIONS = [TestTrans]
+
+        def apply(self, node, valid=False, **kwargs):
+            ...
+    opts = {}
+    trans = TestTrans3()
+    # Check that we get the default False for the valid option.
+    assert not trans.get_option("valid", **opts)
+
+
+
 
 def test_transformation_split_kwargs():
     ''' Test that the kwargs can be split when they can be propagated to