From ad3035b91d6dea8f37b0a2388d88498bfd1bb365 Mon Sep 17 00:00:00 2001
From: Li Cao <irvingcl@google.com>
Date: Tue, 28 Oct 2025 07:52:02 +0800
Subject: [PATCH] [tests] add dnssd api implementations in FakePlatform
 (#12070)

This commit adds fake implementations for OT dnssd platform APIs.

The background is that I'm trying to enable the OT Dnssd Server
functions (Discovery Proxy) in ot-br-posix by default. Once it's
enabled, `openthread-ftd` needs implemenation of dnssd platform
APIs. To make some unit tests (in ot-br-posix) build successfully,
these fake implementations are required.
---
 tests/gtest/fake_platform.cpp | 55 +++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/tests/gtest/fake_platform.cpp b/tests/gtest/fake_platform.cpp
index 399173edd..38831d618 100644
--- a/tests/gtest/fake_platform.cpp
+++ b/tests/gtest/fake_platform.cpp
@@ -41,6 +41,7 @@
 #include <openthread/tcat.h>
 #include <openthread/platform/ble.h>
 #include <openthread/platform/diag.h>
+#include <openthread/platform/dnssd.h>
 #include <openthread/platform/dso_transport.h>
 #include <openthread/platform/entropy.h>
 #include <openthread/platform/logging.h>
@@ -611,6 +612,60 @@ otError otPlatUdpLeaveMulticastGroup(otUdpSocket *, otNetifIdentifier, const otI
     return OT_ERROR_NOT_IMPLEMENTED;
 }
 
+otPlatDnssdState otPlatDnssdGetState(otInstance *) { return OT_PLAT_DNSSD_STOPPED; }
+
+void otPlatDnssdRegisterService(otInstance *,
+                                const otPlatDnssdService *,
+                                otPlatDnssdRequestId,
+                                otPlatDnssdRegisterCallback)
+{
+}
+
+void otPlatDnssdUnregisterService(otInstance *,
+                                  const otPlatDnssdService *,
+                                  otPlatDnssdRequestId,
+                                  otPlatDnssdRegisterCallback)
+{
+}
+
+void otPlatDnssdRegisterHost(otInstance *, const otPlatDnssdHost *, otPlatDnssdRequestId, otPlatDnssdRegisterCallback)
+{
+}
+
+void otPlatDnssdUnregisterHost(otInstance *, const otPlatDnssdHost *, otPlatDnssdRequestId, otPlatDnssdRegisterCallback)
+{
+}
+
+void otPlatDnssdRegisterKey(otInstance *, const otPlatDnssdKey *, otPlatDnssdRequestId, otPlatDnssdRegisterCallback) {}
+
+void otPlatDnssdUnregisterKey(otInstance *, const otPlatDnssdKey *, otPlatDnssdRequestId, otPlatDnssdRegisterCallback)
+{
+}
+
+void otPlatDnssdStartBrowser(otInstance *, const otPlatDnssdBrowser *) {}
+
+void otPlatDnssdStopBrowser(otInstance *, const otPlatDnssdBrowser *) {}
+
+void otPlatDnssdStartSrvResolver(otInstance *, const otPlatDnssdSrvResolver *) {}
+
+void otPlatDnssdStopSrvResolver(otInstance *, const otPlatDnssdSrvResolver *) {}
+
+void otPlatDnssdStartTxtResolver(otInstance *, const otPlatDnssdTxtResolver *) {}
+
+void otPlatDnssdStopTxtResolver(otInstance *, const otPlatDnssdTxtResolver *) {}
+
+void otPlatDnssdStartIp6AddressResolver(otInstance *, const otPlatDnssdAddressResolver *) {}
+
+void otPlatDnssdStopIp6AddressResolver(otInstance *, const otPlatDnssdAddressResolver *) {}
+
+void otPlatDnssdStartIp4AddressResolver(otInstance *, const otPlatDnssdAddressResolver *) {}
+
+void otPlatDnssdStopIp4AddressResolver(otInstance *, const otPlatDnssdAddressResolver *) {}
+
+void otPlatDnssdStartRecordQuerier(otInstance *, const otPlatDnssdRecordQuerier *) {}
+
+void otPlatDnssdStopRecordQuerier(otInstance *, const otPlatDnssdRecordQuerier *) {}
+
 #if OPENTHREAD_CONFIG_OTNS_ENABLE
 void otPlatOtnsStatus(const char *aStatus) { OT_UNUSED_VARIABLE(aStatus); }
 #endif