diff --git a/drmdisplaycompositor.cpp b/drmdisplaycompositor.cpp
index 2f9f6c6..defede6 100644
--- a/drmdisplaycompositor.cpp
+++ b/drmdisplaycompositor.cpp
@@ -510,6 +510,10 @@
   return ret;
 }
 
+int DrmDisplayCompositor::TestComposition(DrmDisplayComposition *composition) {
+  return CommitFrame(composition, true);
+}
+
 void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
   int ret = pthread_mutex_lock(&lock_);
   if (ret)