diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 94fc5f7..8cff08e 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -388,6 +388,11 @@
     auto& mutableInternalHwcDisplayId() { return getHwComposer().mInternalHwcDisplayId; }
     auto& mutableExternalHwcDisplayId() { return getHwComposer().mExternalHwcDisplayId; }
 
+    auto fromHandle(const sp<IBinder>& handle) {
+        Mutex::Autolock _l(mFlinger->mStateLock);
+        return mFlinger->fromHandle(handle);
+    }
+
     ~TestableSurfaceFlinger() {
         // All these pointer and container clears help ensure that GMock does
         // not report a leaked object, since the SurfaceFlinger instance may
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index a465388..994a509 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -315,4 +315,9 @@
     BlockedByPriorTransaction(/*flags*/ 0, /*syncInputWindows*/ true);
 }
 
+TEST_F(TransactionApplicationTest, FromHandle) {
+    sp<IBinder> badHandle;
+    auto ret = mFlinger.fromHandle(badHandle);
+    EXPECT_EQ(nullptr, ret.get());
+}
 } // namespace android