esp_matter: Make Test Event Trigger Delegate configurable

components/esp_matter/esp_matter_core.cpp

@@ -16,6 +16,7 @@
 #include <esp_log.h>
 #include <esp_matter.h>
 #include <esp_matter_core.h>
+#include <esp_matter_test_event_trigger.h>
 #include <nvs.h>
 
 #include <app/clusters/general-diagnostics-server/general-diagnostics-server.h>
@@ -719,6 +720,7 @@ static void esp_matter_chip_init_task(intptr_t context)
 
     initParams.InitializeStaticResourcesBeforeServerInit();
     initParams.appDelegate = &s_app_delegate;
+    initParams.testEventTriggerDelegate = test_event_trigger::get_delegate();
 
 #ifdef CONFIG_ESP_MATTER_ENABLE_DATA_MODEL
     // Group data provider injection for dynamic data model

components/esp_matter/esp_matter_test_event_trigger.cpp

@@ -0,0 +1,38 @@
+// Copyright 2025 Espressif Systems (Shanghai) PTE LTD
+//
+// 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.
+
+#include <esp_matter_core.h>
+#include <esp_matter_test_event_trigger.h>
+
+namespace esp_matter {
+namespace test_event_trigger {
+
+static chip::TestEventTriggerDelegate *s_test_event_trigger = nullptr;
+
+esp_err_t set_delegate(chip::TestEventTriggerDelegate *test_event_trigger_delegate)
+{
+    if (esp_matter::is_started()) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    s_test_event_trigger = test_event_trigger_delegate;
+    return ESP_OK;
+}
+
+chip::TestEventTriggerDelegate *get_delegate()
+{
+    return s_test_event_trigger;
+}
+
+} // namespace test_event_trigger
+} // namespace esp_matter

components/esp_matter/esp_matter_test_event_trigger.h

@@ -0,0 +1,41 @@
+// Copyright 2025 Espressif Systems (Shanghai) PTE LTD
+//
+// 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.
+
+#pragma once
+
+#include <esp_err.h>
+
+#include <app/TestEventTriggerDelegate.h>
+
+namespace esp_matter {
+namespace test_event_trigger {
+
+/** Set TestEventTriggerDelegate which can be triggered by TestEventTrigger command of GeneralDiagnostics cluster
+ *
+ * Note: This function should be called before esp_matter::start()
+ *
+ * @param[in] test_event_trigger_delegate TestEventTriggerDelegate
+ *
+ * @return ESP_OK on success
+ *         ESP_ERR_INVALID_STATE when calling the function after esp_matter::start()
+ */
+esp_err_t set_delegate(chip::TestEventTriggerDelegate *test_event_trigger_delegate);
+
+/** Get TestEventTriggerDelegate which can be triggered by TestEventTrigger command of GeneralDiagnostics cluster
+ *
+ * @return TestEventTriggerDelegate set by set_delegate()
+ */
+chip::TestEventTriggerDelegate *get_delegate();
+} // namespace test_event_trigger
+} // namespace esp_matter