Merge "Add test for multiple brightness events" into udc-dev

        assertEquals(mDefaultNightModeColorTemperature, event.colorTemperature);

    }

    @Test

    public void testMultipleBrightnessEvents() {

        final float brightnessOne = 0.2f;

        final float brightnessTwo = 0.4f;

        final float brightnessThree = 0.6f;

        final float brightnessFour = 0.3f;

        final String displayId = "1234";

        final float[] luxValues = new float[]{1.0f};

        startTracker(mTracker);

        final long sensorTime = TimeUnit.NANOSECONDS.toMillis(mInjector.elapsedRealtimeNanos());

        final long sensorTime2 = sensorTime + TimeUnit.SECONDS.toMillis(20);

        final long sensorTime3 = sensorTime2 + TimeUnit.SECONDS.toMillis(30);

        final long sensorTime4 = sensorTime3 + TimeUnit.SECONDS.toMillis(40);

        final long originalTime = mInjector.currentTimeMillis();

        mInjector.incrementTime(TimeUnit.SECONDS.toMillis(2));

        notifyBrightnessChanged(mTracker, brightnessOne, displayId, luxValues,

                new long[] {sensorTime});

        mInjector.incrementTime(TimeUnit.SECONDS.toMillis(20));

        notifyBrightnessChanged(mTracker, brightnessTwo, displayId, luxValues,

                new long[] {sensorTime2});

        mInjector.incrementTime(TimeUnit.SECONDS.toMillis(30));

        notifyBrightnessChanged(mTracker, brightnessThree, displayId, luxValues,

                new long[] {sensorTime3});

        mInjector.incrementTime(TimeUnit.SECONDS.toMillis(40));

        notifyBrightnessChanged(mTracker, brightnessFour, displayId, luxValues,

                new long[] {sensorTime4});

        mTracker.stop();

        List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();

        assertEquals(4, events.size());

        BrightnessChangeEvent eventOne = events.get(0);

        assertEquals(brightnessOne, eventOne.brightness, FLOAT_DELTA);

        assertEquals(originalTime,

                eventOne.luxTimestamps[0]);

        BrightnessChangeEvent eventTwo = events.get(1);

        assertEquals(brightnessTwo, eventTwo.brightness, FLOAT_DELTA);

        assertEquals(originalTime + TimeUnit.SECONDS.toMillis(20),

                eventTwo.luxTimestamps[0]);

        BrightnessChangeEvent eventThree = events.get(2);

        assertEquals(brightnessThree, eventThree.brightness, FLOAT_DELTA);

        assertEquals(originalTime + TimeUnit.SECONDS.toMillis(50),

                eventThree.luxTimestamps[0]);

        BrightnessChangeEvent eventFour = events.get(3);

        assertEquals(brightnessFour, eventFour.brightness, FLOAT_DELTA);

        assertEquals(originalTime + TimeUnit.SECONDS.toMillis(90),

                eventFour.luxTimestamps[0]);

    }

    @Test

    public void testBrightnessFullPopulatedEvent() {

        final int initialBrightness = 230;