Implement TC_DEMM_1_2 with Python

Author: juandediosg

src/python_testing/TC_DEMM_1_2.py

@@ -0,0 +1,110 @@
+#
+#    Copyright (c) 2025 Project CHIP Authors
+#    All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+#
+
+# See https://github.com/project-chip/connectedhomeip/blob/master/docs/testing/python.md#defining-the-ci-test-arguments
+# for details about the block below.
+#
+# FIXME: https://github.com/project-chip/connectedhomeip/issues/36885
+# === BEGIN CI TEST ARGUMENTS ===
+# test-runner-runs:
+#   run1:
+#     app: ${CHIP_MICROWAVE_OVEN_APP}
+#     app-args: --discriminator 1234 --KVS kvs1 --trace-to json:${TRACE_APP}.json
+#     script-args: >
+#       --storage-path admin_storage.json
+#       --commissioning-method on-network
+#       --discriminator 1234
+#       --passcode 20202021
+#       --PICS src/app/tests/suites/certification/ci-pics-values
+#       --endpoint 1
+#       --trace-to json:${TRACE_TEST_JSON}.json
+#       --trace-to perfetto:${TRACE_TEST_PERFETTO}.perfetto
+#     factory-reset: true
+#     quiet: true
+# === END CI TEST ARGUMENTS ===
+
+
+import chip.clusters as Clusters
+from chip.testing.matter_testing import MatterBaseTest, TestStep, async_test_body, default_matter_test_main
+from modebase_cluster_check import ModeBaseClusterChecks
+
+CLUSTER = Clusters.RefrigeratorAndTemperatureControlledCabinetMode
+
+
+class TC_DEMM_1_2(MatterBaseTest, ModeBaseClusterChecks):
+
+    def __init__(self, *args):
+        MatterBaseTest.__init__(self, *args)
+        ModeBaseClusterChecks.__init__(self,
+                                       modebase_derived_cluster=CLUSTER)
+
+    def desc_TC_DEMM_1_2(self) -> str:
+        return "[TC-DEMM-1.2] Cluster attributes with DUT as Server"
+
+    def steps_TC_DEMM_1_2(self) -> list[TestStep]:
+        steps = [
+            TestStep(1, "Commissioning, already done", is_commissioning=True),
+            TestStep(2, "TH reads from the DUT the SupportedModes attribute."),
+            TestStep(3, "TH reads from the DUT the CurrentMode attribute."),
+            TestStep(4, "TH reads from the DUT the OnMode attribute."),
+            TestStep(5, "TH reads from the DUT the StartUpMode attribute.")
+        ]
+        return steps
+
+    def pics_TC_DEMM_1_2(self) -> list[str]:
+        pics = [
+            "DEMM.S"
+        ]
+        return pics
+
+    @async_test_body
+    async def test_TC_DEMM_1_2(self):
+
+        # Setup common mode check
+        endpoint = self.get_endpoint(default=1)
+
+        self.step(1)
+
+        self.step(2)
+        # Verify common checks for Mode Base as described in the TC-DEMM-1.2
+        supported_modes = await self.check_supported_modes_and_labels(endpoint=endpoint)
+        # According to the spec, there should be at least one RapidCool or RapidFreeze tag in
+        # the ones supported.
+        additional_tags = [CLUSTER.Enums.ModeTag.kRapidCool,
+                           CLUSTER.Enums.ModeTag.kRapidFreeze]
+        self.check_tags_in_lists(supported_modes=supported_modes, required_tags=additional_tags)
+
+        self.step(3)
+        # Verify that the CurrentMode attribute has a valid value.
+        mode = self.cluster.Attributes.CurrentMode
+        await self.read_and_check_mode(endpoint=endpoint, mode=mode, supported_modes=supported_modes)
+
+        self.step(4)
+        # Verify that the OnMode attribute has a valid value or null.
+        mode = self.cluster.Attributes.OnMode
+        await self.read_and_check_mode(endpoint=endpoint, mode=mode,
+                                       supported_modes=supported_modes, is_nullable=True)
+
+        self.step(5)
+        # Verify that the StartUpMode has a valid value or null
+        mode = self.cluster.Attributes.StartUpMode
+        await self.read_and_check_mode(endpoint=endpoint, mode=mode,
+                                       supported_modes=supported_modes, is_nullable=True)
+
+
+if __name__ == "__main__":
+    default_matter_test_main()