Add architecture stub classes

test/fixtures/schedule.py

@@ -8,6 +8,15 @@ from b_asic.schedule import Schedule
 def secondorder_iir_schedule(precedence_sfg_delays):
     precedence_sfg_delays.set_latency_of_type(Addition.type_name(), 4)
     precedence_sfg_delays.set_latency_of_type(ConstantMultiplication.type_name(), 3)
+
+    schedule = Schedule(precedence_sfg_delays, scheduling_algorithm="ASAP")
+    return schedule
+
+
+@pytest.fixture
+def secondorder_iir_schedule_with_execution_times(precedence_sfg_delays):
+    precedence_sfg_delays.set_latency_of_type(Addition.type_name(), 4)
+    precedence_sfg_delays.set_latency_of_type(ConstantMultiplication.type_name(), 3)
     precedence_sfg_delays.set_execution_time_of_type(Addition.type_name(), 2)
     precedence_sfg_delays.set_execution_time_of_type(
         ConstantMultiplication.type_name(), 1