Merge "SF: Fix for rare flakes in Event{Control}ThreadTests"diff --git a/services/surfaceflinger/tests/unittests/AsyncCallRecorder.h b/services/surfaceflinger/tests/unittests/AsyncCallRecorder.h
index 2245ee1..8bed766 100644
--- a/services/surfaceflinger/tests/unittests/AsyncCallRecorder.h
+++ b/services/surfaceflinger/tests/unittests/AsyncCallRecorder.h
@@ -75,14 +75,16 @@
template <typename... Args>
class AsyncCallRecorder<void (*)(Args...)> {
public:
- // For the tests, we expect the wait for an expected change to be signaled
- // to be much shorter than this.
- static constexpr std::chrono::milliseconds DEFAULT_CALL_EXPECTED_TIMEOUT{10};
+ // This wait value needs to be large enough to avoid flakes caused by delays
+ // scheduling threads, but small enough that tests don't take forever if
+ // something really is wrong. Based on some empirical evidence, 100ms should
+ // be enough to avoid the former.
+ static constexpr std::chrono::milliseconds DEFAULT_CALL_EXPECTED_TIMEOUT{100};
- // The wait here is tricky. We don't expect a change, but we don't want to
- // wait forever (or for longer than the typical test function runtime). As
- // even the simplest Google Test can take 1ms (1000us) to run, we wait for
- // half that time.
+ // The wait here is tricky. It's for when We don't expect to record a call,
+ // but we don't want to wait forever (or for longer than the typical test
+ // function runtime). As even the simplest Google Test can take 1ms (1000us)
+ // to run, we wait for half that time.
static constexpr std::chrono::microseconds UNEXPECTED_CALL_TIMEOUT{500};
using ArgTuple = std::tuple<std::remove_cv_t<std::remove_reference_t<Args>>...>;
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index ad7dcb4..fa5bb26 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -119,7 +119,7 @@
ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
// EventThread should unregister itself as VSyncSource callback.
- EXPECT_FALSE(expectVSyncSetCallbackCallReceived());
+ EXPECT_TRUE(!mVSyncSetCallbackCallRecorder.waitForUnexpectedCall().has_value());
}
void EventThreadTest::createThread() {