sanity check that tests are running as expected

tests/test_operation.py

@@ -46,6 +46,18 @@
 I_broadcasted = I[pnp.newaxis]
 
 
+def test_that_opmath_is_enabled():
+    """Confirm that the tests are running by default with new_opmath enabled"""
+    if not qml.operation.active_new_opmath():
+        raise RuntimeError
+
+
+def test_that_opmath_is_disabled():
+    """Confirm that the tests are running by default with new_opmath disabled"""
+    if qml.operation.active_new_opmath():
+        raise RuntimeError
+
+
 class TestOperatorConstruction:
     """Test custom operators' construction."""