Device type DM XML parser (#33845)

* Device type DM XML parser

* Restyled by autopep8

* linter

* Update src/python_testing/TestSpecParsingDeviceType.py

* Apply suggestions from code review

* address review comments

* Restyled by autopep8

* use new directory structure for device types too

* python 3.9 compliance

---------

Co-authored-by: Restyled.io <commits@restyled.io>

Author: cecille

.github/workflows/tests.yaml

@@ -582,6 +582,7 @@ jobs:
                   scripts/run_in_python_env.sh out/venv './scripts/tests/TestTimeSyncTrustedTimeSourceRunner.py'
                   scripts/run_in_python_env.sh out/venv './src/python_testing/test_testing/test_TC_ICDM_2_1.py'
                   scripts/run_in_python_env.sh out/venv 'python3 ./src/python_testing/TestIdChecks.py'
+                  scripts/run_in_python_env.sh out/venv 'python3 ./src/python_testing/TestSpecParsingDeviceType.py'
                   scripts/run_in_python_env.sh out/venv 'python3 ./src/python_testing/TestConformanceSupport.py'
                   scripts/run_in_python_env.sh out/venv 'python3 ./src/python_testing/test_testing/test_IDM_10_4.py'
 

src/python_testing/TestSpecParsingDeviceType.py

@@ -0,0 +1,111 @@
+#
+#    Copyright (c) 2024 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.
+#
+import xml.etree.ElementTree as ElementTree
+
+from jinja2 import Template
+from matter_testing_support import MatterBaseTest, default_matter_test_main
+from mobly import asserts
+from spec_parsing_support import build_xml_device_types, parse_single_device_type
+
+
+class TestSpecParsingDeviceType(MatterBaseTest):
+
+    # This just tests that the current spec can be parsed without failures
+    def test_spec_device_parsing(self):
+        device_types, problems = build_xml_device_types()
+        self.problems += problems
+        for id, d in device_types.items():
+            print(str(d))
+
+    def setup_class(self):
+        self.device_type_id = 0xBBEF
+        self.revision = 2
+        self.classification_class = "simple"
+        self.classification_scope = "endpoint"
+        self.clusters = {0x0003: "Identify", 0x0004: "Groups"}
+
+        # Conformance support tests the different types of conformance for clusters, so here we just want to ensure that we're correctly parsing the XML into python
+        # adds the same attributes and features to every cluster. This is fine for testing.
+        self.template = Template("""<deviceType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="types types.xsd devicetype devicetype.xsd" id="{{ device_type_id }}" name="Test Device Type" revision="{{ revision }}">
+                                    <revisionHistory>
+                                    {% for i in range(revision) %}
+                                    <revision revision="{{ i }}" summary="Rev"/>
+                                    {% endfor %}
+                                    </revisionHistory>
+                                    <classification {% if classification_class %} class="{{ classification_class }}" {% endif %} {% if classification_scope %} scope="{{ classification_scope }}" {% endif %}/>
+                                    <conditions/>
+                                    <clusters>
+                                    {% for k,v in clusters.items() %}
+                                    <cluster id="{{ k }}" name="{{ v }}" side="server">
+                                    <mandatoryConform/>
+                                    </cluster>
+                                    {% endfor %}
+                                    </clusters>
+                                    </deviceType>""")
+
+    def test_device_type_clusters(self):
+        xml = self.template.render(device_type_id=self.device_type_id, revision=self.revision, classification_class=self.classification_class,
+                                   classification_scope=self.classification_scope, clusters=self.clusters)
+        et = ElementTree.fromstring(xml)
+        device_type, problems = parse_single_device_type(et)
+        asserts.assert_equal(len(problems), 0, "Unexpected problems parsing device type conformance")
+        asserts.assert_equal(len(device_type.keys()), 1, "Unexpected number of device types returned")
+        asserts.assert_true(self.device_type_id in device_type.keys(), "device type id not found in returned data")
+        asserts.assert_equal(device_type[self.device_type_id].revision, self.revision, "Unexpected revision")
+        asserts.assert_equal(len(device_type[self.device_type_id].server_clusters),
+                             len(self.clusters), "Unexpected number of clusters")
+        for id, name in self.clusters.items():
+            asserts.assert_equal(device_type[self.device_type_id].server_clusters[id].name, name, "Incorrect cluster name")
+            asserts.assert_equal(str(device_type[self.device_type_id].server_clusters[id].conformance),
+                                 'M', 'Incorrect cluster conformance')
+
+    def test_no_clusters(self):
+        clusters = {}
+        xml = self.template.render(device_type_id=self.device_type_id, revision=self.revision, classification_class=self.classification_class,
+                                   classification_scope=self.classification_scope, clusters=clusters)
+        et = ElementTree.fromstring(xml)
+        device_type, problems = parse_single_device_type(et)
+        asserts.assert_equal(len(problems), 0, "Unexpected problems parsing device type conformance")
+        asserts.assert_equal(len(device_type.keys()), 1, "Unexpected number of device types returned")
+        asserts.assert_true(self.device_type_id in device_type.keys(), "device type id not found in returned data")
+        asserts.assert_equal(device_type[self.device_type_id].revision, self.revision, "Unexpected revision")
+        asserts.assert_equal(len(device_type[self.device_type_id].server_clusters), len(clusters), "Unexpected number of clusters")
+
+    def test_bad_device_type_id(self):
+        xml = self.template.render(device_type_id="", revision=self.revision, classification_class=self.classification_class,
+                                   classification_scope=self.classification_scope, clusters=self.clusters)
+        et = ElementTree.fromstring(xml)
+        device_type, problems = parse_single_device_type(et)
+        asserts.assert_equal(len(problems), 1, "Device with blank ID did not generate a problem notice")
+
+    def test_bad_class(self):
+        xml = self.template.render(device_type_id=self.device_type_id, revision=self.revision, classification_class="",
+                                   classification_scope=self.classification_scope, clusters=self.clusters)
+        et = ElementTree.fromstring(xml)
+        device_type, problems = parse_single_device_type(et)
+        asserts.assert_equal(len(problems), 1, "Device with no class did not generate a problem notice")
+
+    def test_bad_scope(self):
+        xml = self.template.render(device_type_id=self.device_type_id, revision=self.revision, classification_class=self.classification_class,
+                                   classification_scope="", clusters=self.clusters)
+        et = ElementTree.fromstring(xml)
+        device_type, problems = parse_single_device_type(et)
+        asserts.assert_equal(len(problems), 1, "Device with no scope did not generate a problem notice")
+
+
+if __name__ == "__main__":
+    default_matter_test_main()

src/python_testing/matter_testing_support.py

@@ -450,14 +450,17 @@ class CustomCommissioningParameters:
 
 
 @dataclass
-class ProblemLocation:
+class ClusterPathLocation:
+    endpoint_id: int
+    cluster_id: int
+
     def __str__(self):
-        return "UNKNOWN"
+        return (f'\n       Endpoint: {self.endpoint_id},'
+                f'\n       Cluster:  {cluster_id_str(self.cluster_id)}')
 
 
 @dataclass
-class AttributePathLocation(ProblemLocation):
-    endpoint_id: int
+class AttributePathLocation(ClusterPathLocation):
     cluster_id: Optional[int] = None
     attribute_id: Optional[int] = None
 
@@ -475,55 +478,50 @@ def as_string(self, mapper: ClusterMapper):
         return desc
 
     def __str__(self):
-        return (f'\n        Endpoint: {self.endpoint_id},'
-                f'\n        Cluster:  {cluster_id_str(self.cluster_id)},'
-                f'\n        Attribute:{id_str(self.attribute_id)}')
+        return (f'{super().__str__()}'
+                f'\n      Attribute:{id_str(self.attribute_id)}')
 
 
 @dataclass
-class EventPathLocation(ProblemLocation):
-    endpoint_id: int
-    cluster_id: int
+class EventPathLocation(ClusterPathLocation):
     event_id: int
 
     def __str__(self):
-        return (f'\n        Endpoint: {self.endpoint_id},'
-                f'\n        Cluster:  {cluster_id_str(self.cluster_id)},'
-                f'\n        Event:    {id_str(self.event_id)}')
+        return (f'{super().__str__()}'
+                f'\n       Event:    {id_str(self.event_id)}')
 
 
 @dataclass
-class CommandPathLocation(ProblemLocation):
-    endpoint_id: int
-    cluster_id: int
+class CommandPathLocation(ClusterPathLocation):
     command_id: int
 
     def __str__(self):
-        return (f'\n        Endpoint: {self.endpoint_id},'
-                f'\n        Cluster:  {cluster_id_str(self.cluster_id)},'
-                f'\n        Command:  {id_str(self.command_id)}')
+        return (f'{super().__str__()}'
+                f'\n       Command:  {id_str(self.command_id)}')
 
 
 @dataclass
-class ClusterPathLocation(ProblemLocation):
-    endpoint_id: int
-    cluster_id: int
+class FeaturePathLocation(ClusterPathLocation):
+    feature_code: str
 
     def __str__(self):
-        return (f'\n       Endpoint: {self.endpoint_id},'
-                f'\n       Cluster:  {cluster_id_str(self.cluster_id)}')
+        return (f'{super().__str__()}'
+                f'\n       Feature:  {self.feature_code}')
 
 
 @dataclass
-class FeaturePathLocation(ProblemLocation):
-    endpoint_id: int
-    cluster_id: int
-    feature_code: str
+class DeviceTypePathLocation:
+    device_type_id: int
+    cluster_id: Optional[int] = None
 
     def __str__(self):
-        return (f'\n        Endpoint: {self.endpoint_id},'
-                f'\n        Cluster:  {cluster_id_str(self.cluster_id)},'
-                f'\n        Feature:  {self.feature_code}')
+        msg = f'\n       DeviceType: {self.device_type_id}'
+        if self.cluster_id:
+            msg += f'\n       ClusterID: {self.cluster_id}'
+        return msg
+
+
+ProblemLocation = typing.Union[ClusterPathLocation, DeviceTypePathLocation]
 
 # ProblemSeverity is not using StrEnum, but rather Enum, since StrEnum only
 # appeared in 3.11. To make it JSON serializable easily, multiple inheritance