more updates

test/rota_constraints/test_avoid_grades_by_week.py

@@ -85,7 +85,7 @@ class TestWorkerRequests:
                 force_as_block=False,
             ),
         )
-        with pytest.raises(ValueError):
+        with pytest.raises(InvalidShift):
 
             Rota.add_grade_constraint_by_week([1], [1,2,3], ["b"])
             Rota.build_and_solve(options={"ratio": 0.000})