Merge "AppStartInfo timestamp test" into main

import static com.android.server.am.ActivityManagerService.Injector;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertNull;

import static org.junit.Assert.assertTrue;

        assertTrue(startInfo.equals(startInfoFromParcel));

    }

    /** Test that new timestamps are added to the correct record (the most recently created one). */

    @Test

    public void testTimestampAddedToCorrectRecord() throws Exception {

        // Use a different start timestamp for each record so we can identify which was added to.

        final long startTimeRecord1 = 123L;

        final long startTimeRecord2 = 456L;

        final long forkTime = 789L;

        // Create a process record to use with all starts.

        ProcessRecord app = makeProcessRecord(

                APP_1_PID_1,                     // pid

                APP_1_UID,                       // uid

                APP_1_UID,                       // packageUid

                null,                            // definingUid

                APP_1_PROCESS_NAME,              // processName

                APP_1_PACKAGE_NAME);             // packageName

        // Trigger a start info record.

        mAppStartInfoTracker.handleProcessBroadcastStart(startTimeRecord1, app,

                buildIntent(COMPONENT), false /* isAlarm */);

        // Wait at least 1 ms for monotonic time to increase.

        sleep(1);

        // Verify the record was added successfully.

        ArrayList<ApplicationStartInfo> list = new ArrayList<ApplicationStartInfo>();

        mAppStartInfoTracker.getStartInfo(null, APP_1_UID, 0, 0, list);

        assertEquals(1, list.size());

        assertEquals(startTimeRecord1, list.get(0).getStartupTimestamps().get(0).longValue());

        // Now trigger another start info record.

        mAppStartInfoTracker.handleProcessBroadcastStart(startTimeRecord2, app,

                buildIntent(COMPONENT), false /* isAlarm */);

        // Add a timestamp to the most recent record.

        mAppStartInfoTracker.addTimestampToStart(

                app, forkTime, ApplicationStartInfo.START_TIMESTAMP_FORK);

        // Verify the record was added successfully.

        list.clear();

        mAppStartInfoTracker.getStartInfo(null, APP_1_UID, 0, 0, list);

        assertEquals(2, list.size());

        assertEquals(startTimeRecord2, list.get(0).getStartupTimestamps().get(0).longValue());

        assertEquals(startTimeRecord1, list.get(1).getStartupTimestamps().get(0).longValue());

        // Verify that the new timestamp is set correctly on the 2nd record that was added and not

        // on the first.

        assertEquals(forkTime, list.get(0).getStartupTimestamps()

                .get(ApplicationStartInfo.START_TIMESTAMP_FORK).longValue());

        assertFalse(list.get(1).getStartupTimestamps().containsKey(

                ApplicationStartInfo.START_TIMESTAMP_FORK));

    }

    private static <T> void setFieldValue(Class clazz, Object obj, String fieldName, T val) {

        try {

            Field field = clazz.getDeclaredField(fieldName);