EarlyTraceEventTest.java 文件源码

@SmallTest
@Feature({"Android-AppBase"})
public void testCanRecordEvent() {
    EarlyTraceEvent.enable();
    long myThreadId = Process.myTid();
    long beforeMs = SystemClock.elapsedRealtime();
    EarlyTraceEvent.begin(EVENT_NAME);
    EarlyTraceEvent.end(EVENT_NAME);
    long afterMs = SystemClock.elapsedRealtime();

    assertEquals(1, EarlyTraceEvent.sCompletedEvents.size());
    assertTrue(EarlyTraceEvent.sPendingEvents.isEmpty());
    EarlyTraceEvent.Event event = EarlyTraceEvent.sCompletedEvents.get(0);
    assertEquals(EVENT_NAME, event.mName);
    assertEquals(myThreadId, event.mThreadId);
    assertTrue(beforeMs <= event.mBeginTimeMs && event.mBeginTimeMs <= afterMs);
    assertTrue(event.mBeginTimeMs <= event.mEndTimeMs);
    assertTrue(beforeMs <= event.mEndTimeMs && event.mEndTimeMs <= afterMs);
}