[MWOCTRL] Add constraint error checks (#32118)

* Add constraint error checks

* Apply suggestions from code review

Co-authored-by: Andrei Litvin <andy314@gmail.com>

* Added check for exception expected

---------

Co-authored-by: Andrei Litvin <andy314@gmail.com>

Author: rbultman

src/python_testing/TC_MWOCTRL_2_2.py

@@ -42,6 +42,7 @@ def steps_TC_MWOCTRL_2_2(self) -> list[TestStep]:
             TestStep(2, "Read the PowerSetting attribute"),
             TestStep(3, "Send the SetCookingParameters command"),
             TestStep(4, "Read and verify the PowerSetting attribute"),
+            TestStep(5, "Cause constraint error response"),
         ]
         return steps
 
@@ -89,6 +90,14 @@ async def test_TC_MWOCTRL_2_2(self):
         powerValue = await self.read_mwoctrl_attribute_expect_success(endpoint=endpoint, attribute=attributes.PowerSetting)
         asserts.assert_true(powerValue == newPowerValue, "PowerSetting was not correctly set")
 
+        self.step(5)
+        newPowerValue = 125
+        try:
+            await self.send_single_cmd(cmd=commands.SetCookingParameters(powerSetting=newPowerValue), endpoint=endpoint)
+            asserts.assert_fail("Expected an exception but received none.")
+        except InteractionModelError as e:
+            asserts.assert_equal(e.status, Status.ConstraintError, "Expected ConstraintError but received a different error.")
+
 
 if __name__ == "__main__":
     default_matter_test_main()

src/python_testing/TC_MWOCTRL_2_3.py

@@ -45,6 +45,7 @@ def steps_TC_MWOCTRL_2_3(self) -> list[TestStep]:
             TestStep(5, "Read the PowerSetting attribute"),
             TestStep(6, "Send the SetCookingParameters command"),
             TestStep(7, "Read and verify the PowerSetting attribute"),
+            TestStep(8, "Cause constraint error response"),
         ]
         return steps
 
@@ -109,6 +110,14 @@ async def test_TC_MWOCTRL_2_3(self):
         powerValue = await self.read_mwoctrl_attribute_expect_success(endpoint=endpoint, attribute=attributes.PowerSetting)
         asserts.assert_true(powerValue == newPowerValue, "PowerSetting was not correctly set")
 
+        self.step(8)
+        newPowerValue = maxPowerValue+1
+        try:
+            await self.send_single_cmd(cmd=commands.SetCookingParameters(powerSetting=newPowerValue), endpoint=endpoint)
+            asserts.assert_fail("Expected an exception but received none.")
+        except InteractionModelError as e:
+            asserts.assert_equal(e.status, Status.ConstraintError, "Expected ConstraintError but received a different response.")
+
 
 if __name__ == "__main__":
     default_matter_test_main()