services/tests/servicestests/src/com/android/server/display/DisplayDeviceConfigTest.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.server.display;


 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.mockito.ArgumentMatchers.anyFloat;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;

 import android.content.Context;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.platform.test.annotations.Presubmit;

 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;

 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;

 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;

 @SmallTest
 @Presubmit
 @RunWith(AndroidJUnit4.class)
 public final class DisplayDeviceConfigTest {
     private DisplayDeviceConfig mDisplayDeviceConfig;
     @Mock
     private Context mContext;

     @Mock
     private Resources mResources;

     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
         when(mContext.getResources()).thenReturn(mResources);
         mockDeviceConfigs();
     }

     @Test
     public void testConfigValuesFromDisplayConfig() throws IOException {
         setupDisplayDeviceConfigFromDisplayConfigFile();

         assertEquals(mDisplayDeviceConfig.getAmbientHorizonLong(), 5000);
         assertEquals(mDisplayDeviceConfig.getAmbientHorizonShort(), 50);
         assertEquals(mDisplayDeviceConfig.getBrightnessRampDecreaseMaxMillis(), 3000);
         assertEquals(mDisplayDeviceConfig.getBrightnessRampIncreaseMaxMillis(), 2000);
         assertEquals(mDisplayDeviceConfig.getAmbientLuxBrighteningMinThreshold(), 10.0f, 0.0f);
         assertEquals(mDisplayDeviceConfig.getAmbientLuxDarkeningMinThreshold(), 2.0f, 0.0f);
         assertEquals(mDisplayDeviceConfig.getBrightnessRampFastDecrease(), 0.01f, 0.0f);
         assertEquals(mDisplayDeviceConfig.getBrightnessRampFastIncrease(), 0.02f, 0.0f);
         assertEquals(mDisplayDeviceConfig.getBrightnessRampSlowIncrease(), 0.04f, 0.0f);
         assertEquals(mDisplayDeviceConfig.getBrightnessRampSlowDecrease(), 0.03f, 0.0f);
         assertEquals(mDisplayDeviceConfig.getBrightnessDefault(), 0.5f, 0.0f);
         assertArrayEquals(mDisplayDeviceConfig.getBrightness(), new float[]{0.0f, 0.62f, 1.0f},
                 0.0f);
         assertArrayEquals(mDisplayDeviceConfig.getNits(), new float[]{2.0f, 500.0f, 800.0f}, 0.0f);
         assertArrayEquals(mDisplayDeviceConfig.getBacklight(), new float[]{0.0f, 0.62f, 1.0f},
                 0.0f);
         assertEquals(mDisplayDeviceConfig.getScreenBrighteningMinThreshold(), 0.001, 0.000001f);
         assertEquals(mDisplayDeviceConfig.getScreenDarkeningMinThreshold(), 0.002, 0.000001f);
         assertEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLightDebounce(), 2000);
         assertEquals(mDisplayDeviceConfig.getAutoBrightnessDarkeningLightDebounce(), 1000);
         assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsLux(), new
                 float[]{50.0f, 80.0f}, 0.0f);
         assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsNits(), new
                 float[]{45.0f, 75.0f}, 0.0f);
         // Todo(brup): Add asserts for BrightnessThrottlingData, DensityMapping,
         // HighBrightnessModeData AmbientLightSensor, RefreshRateLimitations and ProximitySensor.
     }

     @Test
     public void testConfigValuesFromDeviceConfig() {
         setupDisplayDeviceConfigFromDeviceConfigFile();
         assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsLux(), new
                 float[]{0.0f, 110.0f, 500.0f}, 0.0f);
         assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsNits(), new
                 float[]{2.0f, 200.0f, 600.0f}, 0.0f);
         // Todo(brup): Add asserts for BrightnessThrottlingData, DensityMapping,
         // HighBrightnessModeData AmbientLightSensor, RefreshRateLimitations and ProximitySensor.

     }

     private String getContent() {
         return "<?xml version='1.0' encoding='utf-8' standalone='yes' ?>\n"
                 + "<displayConfiguration>\n"
                 +   "<screenBrightnessMap>\n"
                 +       "<point>\n"
                 +           "<value>0.0</value>\n"
                 +           "<nits>2.0</nits>\n"
                 +       "</point>\n"
                 +       "<point>\n"
                 +           "<value>0.62</value>\n"
                 +           "<nits>500.0</nits>\n"
                 +       "</point>\n"
                 +       "<point>\n"
                 +           "<value>1.0</value>\n"
                 +           "<nits>800.0</nits>\n"
                 +       "</point>\n"
                 +   "</screenBrightnessMap>\n"
                 +   "<autoBrightness>\n"
                 +       "<brighteningLightDebounceMillis>2000</brighteningLightDebounceMillis>\n"
                 +       "<darkeningLightDebounceMillis>1000</darkeningLightDebounceMillis>\n"
                 +       "<displayBrightnessMapping>\n"
                 +            "<displayBrightnessPoint>\n"
                 +                "<lux>50</lux>\n"
                 +                "<nits>45</nits>\n"
                 +            "</displayBrightnessPoint>\n"
                 +            "<displayBrightnessPoint>\n"
                 +                "<lux>80</lux>\n"
                 +                "<nits>75</nits>\n"
                 +            "</displayBrightnessPoint>\n"
                 +       "</displayBrightnessMapping>\n"
                 +   "</autoBrightness>\n"
                 +   "<highBrightnessMode enabled=\"true\">\n"
                 +       "<transitionPoint>0.62</transitionPoint>\n"
                 +       "<minimumLux>10000</minimumLux>\n"
                 +       "<timing>\n"
                 +           "<!-- allow for 5 minutes out of every 30 minutes -->\n"
                 +           "<timeWindowSecs>1800</timeWindowSecs>\n"
                 +           "<timeMaxSecs>300</timeMaxSecs>\n"
                 +           "<timeMinSecs>60</timeMinSecs>\n"
                 +       "</timing>\n"
                 +       "<refreshRate>\n"
                 +           "<minimum>120</minimum>\n"
                 +           "<maximum>120</maximum>\n"
                 +       "</refreshRate>\n"
                 +       "<thermalStatusLimit>light</thermalStatusLimit>\n"
                 +       "<allowInLowPowerMode>false</allowInLowPowerMode>\n"
                 +   "</highBrightnessMode>\n"
                 +   "<ambientBrightnessChangeThresholds>\n"
                 +       "<brighteningThresholds>\n"
                 +           "<minimum>10</minimum>\n"
                 +       "</brighteningThresholds>\n"
                 +       "<darkeningThresholds>\n"
                 +           "<minimum>2</minimum>\n"
                 +       "</darkeningThresholds>\n"
                 +   "</ambientBrightnessChangeThresholds>\n"
                 +   "<screenBrightnessRampFastDecrease>0.01</screenBrightnessRampFastDecrease> "
                 +   "<screenBrightnessRampFastIncrease>0.02</screenBrightnessRampFastIncrease>  "
                 +   "<screenBrightnessRampSlowDecrease>0.03</screenBrightnessRampSlowDecrease>"
                 +   "<screenBrightnessRampSlowIncrease>0.04</screenBrightnessRampSlowIncrease>"
                 +   "<screenBrightnessRampIncreaseMaxMillis>"
                 +       "2000"
                 +   "</screenBrightnessRampIncreaseMaxMillis>"
                 +   "<screenBrightnessRampDecreaseMaxMillis>"
                 +       "3000"
                 +   "</screenBrightnessRampDecreaseMaxMillis>"
                 +   "<ambientLightHorizonLong>5000</ambientLightHorizonLong>\n"
                 +   "<ambientLightHorizonShort>50</ambientLightHorizonShort>\n"
                 +   "<displayBrightnessChangeThresholds>"
                 +       "<brighteningThresholds>"
                 +           "<minimum>"
                 +               "0.001"
                 +           "</minimum>"
                 +       "</brighteningThresholds>"
                 +       "<darkeningThresholds>"
                 +           "<minimum>"
                 +               "0.002"
                 +           "</minimum>"
                 +       "</darkeningThresholds>"
                 +   "</displayBrightnessChangeThresholds>"
                 +   "<screenBrightnessRampIncreaseMaxMillis>"
                 +       "2000"
                 +    "</screenBrightnessRampIncreaseMaxMillis>\n"
                 +   "<thermalThrottling>\n"
                 +       "<brightnessThrottlingMap>\n"
                 +           "<brightnessThrottlingPoint>\n"
                 +               "<thermalStatus>emergency</thermalStatus>\n"
                 +               "<!-- Throttling to 250 nits: (250-2.0)/(500-2.0)*(0.62-0.0)+0"
                 +               ".0 = 0.30875502 -->\n"
                 +               "<brightness>0.30875502</brightness>\n"
                 +           "</brightnessThrottlingPoint>\n"
                 +       "</brightnessThrottlingMap>\n"
                 +   "</thermalThrottling>\n"
                 + "</displayConfiguration>\n";
     }

     private void mockDeviceConfigs() {
         when(mResources.getFloat(com.android.internal.R.dimen
                 .config_screenBrightnessSettingDefaultFloat)).thenReturn(0.5f);
         when(mResources.getFloat(com.android.internal.R.dimen
                 .config_screenBrightnessSettingMaximumFloat)).thenReturn(1.0f);
     }

     private void setupDisplayDeviceConfigFromDisplayConfigFile() throws IOException {
         Path tempFile = Files.createTempFile("display_config", ".tmp");
         Files.write(tempFile, getContent().getBytes(StandardCharsets.UTF_8));
         mDisplayDeviceConfig = new DisplayDeviceConfig(mContext);
         mDisplayDeviceConfig.initFromFile(tempFile.toFile());
     }

     private void setupDisplayDeviceConfigFromDeviceConfigFile() {
         TypedArray screenBrightnessNits = createFloatTypedArray(new float[]{2.0f, 250.0f, 650.0f});
         when(mResources.obtainTypedArray(
                 com.android.internal.R.array.config_screenBrightnessNits))
                 .thenReturn(screenBrightnessNits);
         TypedArray screenBrightnessBacklight = createFloatTypedArray(new
                 float[]{0.0f, 120.0f, 255.0f});
         when(mResources.obtainTypedArray(
                 com.android.internal.R.array.config_screenBrightnessBacklight))
                 .thenReturn(screenBrightnessBacklight);
         when(mResources.getIntArray(com.android.internal.R.array
                 .config_screenBrightnessBacklight)).thenReturn(new int[]{0, 120, 255});

         when(mResources.getIntArray(com.android.internal.R.array
                 .config_autoBrightnessLevels)).thenReturn(new int[]{30, 80});
         when(mResources.getIntArray(com.android.internal.R.array
                 .config_autoBrightnessDisplayValuesNits)).thenReturn(new int[]{25, 55});

         TypedArray screenBrightnessLevelNits = createFloatTypedArray(new
                 float[]{2.0f, 200.0f, 600.0f});
         when(mResources.obtainTypedArray(
                 com.android.internal.R.array.config_autoBrightnessDisplayValuesNits))
                 .thenReturn(screenBrightnessLevelNits);
         TypedArray screenBrightnessLevelLux = createFloatTypedArray(new
                 float[]{0.0f, 110.0f, 500.0f});
         when(mResources.obtainTypedArray(
                 com.android.internal.R.array.config_autoBrightnessLevels))
                 .thenReturn(screenBrightnessLevelLux);

         mDisplayDeviceConfig = DisplayDeviceConfig.create(mContext, true);

     }

     private TypedArray createFloatTypedArray(float[] vals) {
         TypedArray mockArray = mock(TypedArray.class);
         when(mockArray.length()).thenAnswer(invocation -> {
             return vals.length;
         });
         when(mockArray.getFloat(anyInt(), anyFloat())).thenAnswer(invocation -> {
             final float def = (float) invocation.getArguments()[1];
             if (vals == null) {
                 return def;
             }
             int idx = (int) invocation.getArguments()[0];
             if (idx >= 0 && idx < vals.length) {
                 return vals[idx];
             } else {
                 return def;
             }
         });
         return mockArray;
     }
 }
	/*
	* Copyright (C) 2022 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.server.display;


	import static org.junit.Assert.assertArrayEquals;
	import static org.junit.Assert.assertEquals;
	import static org.mockito.ArgumentMatchers.anyFloat;
	import static org.mockito.ArgumentMatchers.anyInt;
	import static org.mockito.Mockito.mock;
	import static org.mockito.Mockito.when;

	import android.content.Context;
	import android.content.res.Resources;
	import android.content.res.TypedArray;
	import android.platform.test.annotations.Presubmit;

	import androidx.test.filters.SmallTest;
	import androidx.test.runner.AndroidJUnit4;

	import org.junit.Before;
	import org.junit.Test;
	import org.junit.runner.RunWith;
	import org.mockito.Mock;
	import org.mockito.MockitoAnnotations;

	import java.io.IOException;
	import java.nio.charset.StandardCharsets;
	import java.nio.file.Files;
	import java.nio.file.Path;

	@SmallTest
	@Presubmit
	@RunWith(AndroidJUnit4.class)
	public final class DisplayDeviceConfigTest {
	private DisplayDeviceConfig mDisplayDeviceConfig;
	@Mock
	private Context mContext;

	@Mock
	private Resources mResources;

	@Before
	public void setUp() {
	MockitoAnnotations.initMocks(this);
	when(mContext.getResources()).thenReturn(mResources);
	mockDeviceConfigs();
	}

	@Test
	public void testConfigValuesFromDisplayConfig() throws IOException {
	setupDisplayDeviceConfigFromDisplayConfigFile();

	assertEquals(mDisplayDeviceConfig.getAmbientHorizonLong(), 5000);
	assertEquals(mDisplayDeviceConfig.getAmbientHorizonShort(), 50);
	assertEquals(mDisplayDeviceConfig.getBrightnessRampDecreaseMaxMillis(), 3000);
	assertEquals(mDisplayDeviceConfig.getBrightnessRampIncreaseMaxMillis(), 2000);
	assertEquals(mDisplayDeviceConfig.getAmbientLuxBrighteningMinThreshold(), 10.0f, 0.0f);
	assertEquals(mDisplayDeviceConfig.getAmbientLuxDarkeningMinThreshold(), 2.0f, 0.0f);
	assertEquals(mDisplayDeviceConfig.getBrightnessRampFastDecrease(), 0.01f, 0.0f);
	assertEquals(mDisplayDeviceConfig.getBrightnessRampFastIncrease(), 0.02f, 0.0f);
	assertEquals(mDisplayDeviceConfig.getBrightnessRampSlowIncrease(), 0.04f, 0.0f);
	assertEquals(mDisplayDeviceConfig.getBrightnessRampSlowDecrease(), 0.03f, 0.0f);
	assertEquals(mDisplayDeviceConfig.getBrightnessDefault(), 0.5f, 0.0f);
	assertArrayEquals(mDisplayDeviceConfig.getBrightness(), new float[]{0.0f, 0.62f, 1.0f},
	0.0f);
	assertArrayEquals(mDisplayDeviceConfig.getNits(), new float[]{2.0f, 500.0f, 800.0f}, 0.0f);
	assertArrayEquals(mDisplayDeviceConfig.getBacklight(), new float[]{0.0f, 0.62f, 1.0f},
	0.0f);
	assertEquals(mDisplayDeviceConfig.getScreenBrighteningMinThreshold(), 0.001, 0.000001f);
	assertEquals(mDisplayDeviceConfig.getScreenDarkeningMinThreshold(), 0.002, 0.000001f);
	assertEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLightDebounce(), 2000);
	assertEquals(mDisplayDeviceConfig.getAutoBrightnessDarkeningLightDebounce(), 1000);
	assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsLux(), new
	float[]{50.0f, 80.0f}, 0.0f);
	assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsNits(), new
	float[]{45.0f, 75.0f}, 0.0f);
	// Todo(brup): Add asserts for BrightnessThrottlingData, DensityMapping,
	// HighBrightnessModeData AmbientLightSensor, RefreshRateLimitations and ProximitySensor.
	}

	@Test
	public void testConfigValuesFromDeviceConfig() {
	setupDisplayDeviceConfigFromDeviceConfigFile();
	assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsLux(), new
	float[]{0.0f, 110.0f, 500.0f}, 0.0f);
	assertArrayEquals(mDisplayDeviceConfig.getAutoBrightnessBrighteningLevelsNits(), new
	float[]{2.0f, 200.0f, 600.0f}, 0.0f);
	// Todo(brup): Add asserts for BrightnessThrottlingData, DensityMapping,
	// HighBrightnessModeData AmbientLightSensor, RefreshRateLimitations and ProximitySensor.

	}

	private String getContent() {
	return "<?xml version='1.0' encoding='utf-8' standalone='yes' ?>\n"
	+ "<displayConfiguration>\n"
	+ "<screenBrightnessMap>\n"
	+ "<point>\n"
	+ "<value>0.0</value>\n"
	+ "<nits>2.0</nits>\n"
	+ "</point>\n"
	+ "<point>\n"
	+ "<value>0.62</value>\n"
	+ "<nits>500.0</nits>\n"
	+ "</point>\n"
	+ "<point>\n"
	+ "<value>1.0</value>\n"
	+ "<nits>800.0</nits>\n"
	+ "</point>\n"
	+ "</screenBrightnessMap>\n"
	+ "<autoBrightness>\n"
	+ "<brighteningLightDebounceMillis>2000</brighteningLightDebounceMillis>\n"
	+ "<darkeningLightDebounceMillis>1000</darkeningLightDebounceMillis>\n"
	+ "<displayBrightnessMapping>\n"
	+ "<displayBrightnessPoint>\n"
	+ "<lux>50</lux>\n"
	+ "<nits>45</nits>\n"
	+ "</displayBrightnessPoint>\n"
	+ "<displayBrightnessPoint>\n"
	+ "<lux>80</lux>\n"
	+ "<nits>75</nits>\n"
	+ "</displayBrightnessPoint>\n"
	+ "</displayBrightnessMapping>\n"
	+ "</autoBrightness>\n"
	+ "<highBrightnessMode enabled=\"true\">\n"
	+ "<transitionPoint>0.62</transitionPoint>\n"
	+ "<minimumLux>10000</minimumLux>\n"
	+ "<timing>\n"
	+ "<!-- allow for 5 minutes out of every 30 minutes -->\n"
	+ "<timeWindowSecs>1800</timeWindowSecs>\n"
	+ "<timeMaxSecs>300</timeMaxSecs>\n"
	+ "<timeMinSecs>60</timeMinSecs>\n"
	+ "</timing>\n"
	+ "<refreshRate>\n"
	+ "<minimum>120</minimum>\n"
	+ "<maximum>120</maximum>\n"
	+ "</refreshRate>\n"
	+ "<thermalStatusLimit>light</thermalStatusLimit>\n"
	+ "<allowInLowPowerMode>false</allowInLowPowerMode>\n"
	+ "</highBrightnessMode>\n"
	+ "<ambientBrightnessChangeThresholds>\n"
	+ "<brighteningThresholds>\n"
	+ "<minimum>10</minimum>\n"
	+ "</brighteningThresholds>\n"
	+ "<darkeningThresholds>\n"
	+ "<minimum>2</minimum>\n"
	+ "</darkeningThresholds>\n"
	+ "</ambientBrightnessChangeThresholds>\n"
	+ "<screenBrightnessRampFastDecrease>0.01</screenBrightnessRampFastDecrease> "
	+ "<screenBrightnessRampFastIncrease>0.02</screenBrightnessRampFastIncrease> "
	+ "<screenBrightnessRampSlowDecrease>0.03</screenBrightnessRampSlowDecrease>"
	+ "<screenBrightnessRampSlowIncrease>0.04</screenBrightnessRampSlowIncrease>"
	+ "<screenBrightnessRampIncreaseMaxMillis>"
	+ "2000"
	+ "</screenBrightnessRampIncreaseMaxMillis>"
	+ "<screenBrightnessRampDecreaseMaxMillis>"
	+ "3000"
	+ "</screenBrightnessRampDecreaseMaxMillis>"
	+ "<ambientLightHorizonLong>5000</ambientLightHorizonLong>\n"
	+ "<ambientLightHorizonShort>50</ambientLightHorizonShort>\n"
	+ "<displayBrightnessChangeThresholds>"
	+ "<brighteningThresholds>"
	+ "<minimum>"
	+ "0.001"
	+ "</minimum>"
	+ "</brighteningThresholds>"
	+ "<darkeningThresholds>"
	+ "<minimum>"
	+ "0.002"
	+ "</minimum>"
	+ "</darkeningThresholds>"
	+ "</displayBrightnessChangeThresholds>"
	+ "<screenBrightnessRampIncreaseMaxMillis>"
	+ "2000"
	+ "</screenBrightnessRampIncreaseMaxMillis>\n"
	+ "<thermalThrottling>\n"
	+ "<brightnessThrottlingMap>\n"
	+ "<brightnessThrottlingPoint>\n"
	+ "<thermalStatus>emergency</thermalStatus>\n"
	+ "<!-- Throttling to 250 nits: (250-2.0)/(500-2.0)*(0.62-0.0)+0"
	+ ".0 = 0.30875502 -->\n"
	+ "<brightness>0.30875502</brightness>\n"
	+ "</brightnessThrottlingPoint>\n"
	+ "</brightnessThrottlingMap>\n"
	+ "</thermalThrottling>\n"
	+ "</displayConfiguration>\n";
	}

	private void mockDeviceConfigs() {
	when(mResources.getFloat(com.android.internal.R.dimen
	.config_screenBrightnessSettingDefaultFloat)).thenReturn(0.5f);
	when(mResources.getFloat(com.android.internal.R.dimen
	.config_screenBrightnessSettingMaximumFloat)).thenReturn(1.0f);
	}

	private void setupDisplayDeviceConfigFromDisplayConfigFile() throws IOException {
	Path tempFile = Files.createTempFile("display_config", ".tmp");
	Files.write(tempFile, getContent().getBytes(StandardCharsets.UTF_8));
	mDisplayDeviceConfig = new DisplayDeviceConfig(mContext);
	mDisplayDeviceConfig.initFromFile(tempFile.toFile());
	}

	private void setupDisplayDeviceConfigFromDeviceConfigFile() {
	TypedArray screenBrightnessNits = createFloatTypedArray(new float[]{2.0f, 250.0f, 650.0f});
	when(mResources.obtainTypedArray(
	com.android.internal.R.array.config_screenBrightnessNits))
	.thenReturn(screenBrightnessNits);
	TypedArray screenBrightnessBacklight = createFloatTypedArray(new
	float[]{0.0f, 120.0f, 255.0f});
	when(mResources.obtainTypedArray(
	com.android.internal.R.array.config_screenBrightnessBacklight))
	.thenReturn(screenBrightnessBacklight);
	when(mResources.getIntArray(com.android.internal.R.array
	.config_screenBrightnessBacklight)).thenReturn(new int[]{0, 120, 255});

	when(mResources.getIntArray(com.android.internal.R.array
	.config_autoBrightnessLevels)).thenReturn(new int[]{30, 80});
	when(mResources.getIntArray(com.android.internal.R.array
	.config_autoBrightnessDisplayValuesNits)).thenReturn(new int[]{25, 55});

	TypedArray screenBrightnessLevelNits = createFloatTypedArray(new
	float[]{2.0f, 200.0f, 600.0f});
	when(mResources.obtainTypedArray(
	com.android.internal.R.array.config_autoBrightnessDisplayValuesNits))
	.thenReturn(screenBrightnessLevelNits);
	TypedArray screenBrightnessLevelLux = createFloatTypedArray(new
	float[]{0.0f, 110.0f, 500.0f});
	when(mResources.obtainTypedArray(
	com.android.internal.R.array.config_autoBrightnessLevels))
	.thenReturn(screenBrightnessLevelLux);

	mDisplayDeviceConfig = DisplayDeviceConfig.create(mContext, true);

	}

	private TypedArray createFloatTypedArray(float[] vals) {
	TypedArray mockArray = mock(TypedArray.class);
	when(mockArray.length()).thenAnswer(invocation -> {
	return vals.length;
	});
	when(mockArray.getFloat(anyInt(), anyFloat())).thenAnswer(invocation -> {
	final float def = (float) invocation.getArguments()[1];
	if (vals == null) {
	return def;
	}
	int idx = (int) invocation.getArguments()[0];
	if (idx >= 0 && idx < vals.length) {
	return vals[idx];
	} else {
	return def;
	}
	});
	return mockArray;
	}
	}