commit 5e7371cec37711a0a822a7b553a340a4605efc89
author Ady Abraham <adyabr@google.com> Tue Mar 24 14:47:24 2020 -0700
committer Ady Abraham <adyabr@google.com> Tue Mar 24 15:45:03 2020 -0700
tree 9795af16bd5c406a13fdf5f7253e94e55d4c8432
parent 0002e6c4f5205e2b2f091bac99d9bb5f31b6167b

SurfaceFlinger: add debug information when vsync is not generated

Print debug information about VsyncReactor internal state when
we expect a vsync event but it is not generated.

Bug: 151892277
Test: adb shell dumpsys SurfaceFlinger --dispsync
Test: simulate a missed vsync and observed logcat
Change-Id: Ia98cb884321d0c25610c4d721f422d9cd05c8c5e

services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp

diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
index 3ab38e4..3543361 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
@@ -47,6 +47,7 @@
     MOCK_CONST_METHOD0(currentPeriod, nsecs_t());
     MOCK_METHOD1(setPeriod, void(nsecs_t));
     MOCK_METHOD0(resetModel, void());
+    MOCK_CONST_METHOD1(dump, void(std::string&));
 
     nsecs_t nextVSyncTime(nsecs_t timePoint) const {
         if (timePoint % mPeriod == 0) {