Add unit test for factory reset event

Signed-off-by: Adrian Gielniewski <adrian.gielniewski@nordicsemi.no>

Author: adigie

src/app/tests/BUILD.gn

@@ -241,6 +241,7 @@ chip_test_suite("tests") {
     "TestReadInteraction.cpp",
     "TestReportScheduler.cpp",
     "TestReportingEngine.cpp",
+    "TestServer.cpp",
     "TestStatusIB.cpp",
     "TestStatusResponseMessage.cpp",
     "TestTestEventTriggerDelegate.cpp",

src/app/tests/TestServer.cpp

@@ -0,0 +1,76 @@
+/*
+ *
+ *    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.
+ */
+
+#include <pw_unit_test/framework.h>
+
+#include <app/server/Server.h>
+#include <platform/CHIPDeviceLayer.h>
+
+namespace chip {
+
+using namespace chip::DeviceLayer;
+
+namespace app {
+namespace server {
+
+class TestServer : public ::testing::Test
+{
+public:
+    static void SetUpTestSuite()
+    {
+        ASSERT_EQ(Platform::MemoryInit(), CHIP_NO_ERROR);
+        ASSERT_EQ(PlatformMgr().InitChipStack(), CHIP_NO_ERROR);
+    }
+    static void TearDownTestSuite()
+    {
+        Platform::MemoryShutdown();
+        PlatformMgr().Shutdown();
+    }
+};
+
+class TestEventHandler
+{
+public:
+    ChipDeviceEvent mEvent{};
+
+    static void EventHandler(const ChipDeviceEvent * event, intptr_t arg)
+    {
+        reinterpret_cast<TestEventHandler *>(arg)->mEvent = *event;
+    }
+};
+
+TEST_F(TestServer, TestFactoryResetEvent)
+{
+    TestEventHandler handler;
+    PlatformMgr().AddEventHandler(TestEventHandler::EventHandler, reinterpret_cast<intptr_t>(&handler));
+
+    auto & server = Server::GetInstance();
+
+    server.ScheduleFactoryReset();
+
+    PlatformMgr().ScheduleWork([](intptr_t) -> void { PlatformMgr().StopEventLoopTask(); }, (intptr_t) nullptr);
+    PlatformMgr().RunEventLoop();
+
+    EXPECT_EQ(handler.mEvent.Type, DeviceEventType::kFactoryReset);
+
+    PlatformMgr().RemoveEventHandler(TestEventHandler::EventHandler, reinterpret_cast<intptr_t>(&handler));
+}
+
+} // namespace server
+} // namespace app
+} // namespace chip

src/test_driver/nrfconnect/prj.conf

@@ -83,3 +83,7 @@ CONFIG_CHIP_ENABLE_READ_CLIENT=y
 CONFIG_CHIP_DEVICE_VENDOR_ID=65521
 CONFIG_CHIP_DEVICE_PRODUCT_ID=32768
 CONFIG_CHIP_PROJECT_CONFIG="main/include/CHIPProjectConfig.h"
+
+# Don't erase all settings as it deinitializes NVS/ZMS and causes issues with
+# testing Server::ScheduleFactoryReset
+CONFIG_CHIP_FACTORY_RESET_ERASE_SETTINGS=n