Merge "Fix the issue where the first brightness for a device was set to 0"
diff --git a/services/core/java/com/android/server/display/brightness/DisplayBrightnessController.java b/services/core/java/com/android/server/display/brightness/DisplayBrightnessController.java
index 13fcff3..e3d92a7 100644
--- a/services/core/java/com/android/server/display/brightness/DisplayBrightnessController.java
+++ b/services/core/java/com/android/server/display/brightness/DisplayBrightnessController.java
@@ -92,9 +92,9 @@
         // TODO: b/186428377 update brightness setting when display changes
         mBrightnessSetting = brightnessSetting;
         mPendingScreenBrightness = PowerManager.BRIGHTNESS_INVALID_FLOAT;
+        mScreenBrightnessDefault = BrightnessUtils.clampAbsoluteBrightness(defaultScreenBrightness);
         mCurrentScreenBrightness = getScreenBrightnessSetting();
         mOnBrightnessChangeRunnable = onBrightnessChangeRunnable;
-        mScreenBrightnessDefault = BrightnessUtils.clampAbsoluteBrightness(defaultScreenBrightness);
         mDisplayBrightnessStrategySelector = injector.getDisplayBrightnessStrategySelector(context,
                 displayId);
     }
diff --git a/services/tests/servicestests/src/com/android/server/display/brightness/DisplayBrightnessControllerTest.java b/services/tests/servicestests/src/com/android/server/display/brightness/DisplayBrightnessControllerTest.java
index d4ab794..ebd63a0 100644
--- a/services/tests/servicestests/src/com/android/server/display/brightness/DisplayBrightnessControllerTest.java
+++ b/services/tests/servicestests/src/com/android/server/display/brightness/DisplayBrightnessControllerTest.java
@@ -47,7 +47,7 @@
 @RunWith(AndroidJUnit4.class)
 public final class DisplayBrightnessControllerTest {
     private static final int DISPLAY_ID = 1;
-    private static final float DEFAULT_BRIGHTNESS = 0.4f;
+    private static final float DEFAULT_BRIGHTNESS = 0.15f;
 
     @Mock
     private DisplayBrightnessStrategySelector mDisplayBrightnessStrategySelector;
@@ -70,11 +70,18 @@
                 return mDisplayBrightnessStrategySelector;
             }
         };
+        when(mBrightnessSetting.getBrightness()).thenReturn(Float.NaN);
         mDisplayBrightnessController = new DisplayBrightnessController(mContext, injector,
                 DISPLAY_ID, DEFAULT_BRIGHTNESS, mBrightnessSetting, mOnBrightnessChangeRunnable);
     }
 
     @Test
+    public void testIfFirstScreenBrightnessIsDefault() {
+        assertEquals(mDisplayBrightnessController.getCurrentBrightness(), DEFAULT_BRIGHTNESS,
+                0.0f);
+    }
+
+    @Test
     public void testUpdateBrightness() {
         DisplayPowerRequest displayPowerRequest = mock(DisplayPowerRequest.class);
         DisplayBrightnessStrategy displayBrightnessStrategy = mock(DisplayBrightnessStrategy.class);