| /* |
| * Copyright (C) 2017 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 android.app; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class WallpaperColorsTest { |
| |
| @Test |
| public void supportsDarkTextOverrideTest() { |
| final Color color = Color.valueOf(Color.WHITE); |
| // Default should not support dark text! |
| WallpaperColors colors = new WallpaperColors(color, null, null, 0); |
| Assert.assertTrue("Default behavior is not to support dark text.", |
| (colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) == 0); |
| |
| // Override it |
| colors = new WallpaperColors(color, null, null, WallpaperColors.HINT_SUPPORTS_DARK_TEXT); |
| Assert.assertFalse("Forcing dark text support doesn't work.", |
| (colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) == 0); |
| } |
| |
| /** |
| * Sanity check to guarantee that white supports dark text and black doesn't |
| */ |
| @Test |
| public void colorHintsTest() { |
| Bitmap image = Bitmap.createBitmap(30, 30, Bitmap.Config.ARGB_8888); |
| Canvas canvas = new Canvas(image); |
| |
| canvas.drawColor(Color.WHITE); |
| int hints = WallpaperColors.fromBitmap(image).getColorHints(); |
| boolean supportsDarkText = (hints & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0; |
| boolean supportsDarkTheme = (hints & WallpaperColors.HINT_SUPPORTS_DARK_THEME) != 0; |
| boolean fromBitmap = (hints & WallpaperColors.HINT_FROM_BITMAP) != 0; |
| Assert.assertTrue("White surface should support dark text.", supportsDarkText); |
| Assert.assertFalse("White surface shouldn't support dark theme.", supportsDarkTheme); |
| Assert.assertTrue("From bitmap should be true if object was created " |
| + "using WallpaperColors#fromBitmap.", fromBitmap); |
| |
| canvas.drawColor(Color.BLACK); |
| hints = WallpaperColors.fromBitmap(image).getColorHints(); |
| supportsDarkText = (hints & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0; |
| supportsDarkTheme = (hints & WallpaperColors.HINT_SUPPORTS_DARK_THEME) != 0; |
| Assert.assertFalse("Black surface shouldn't support dark text.", supportsDarkText); |
| Assert.assertTrue("Black surface should support dark theme.", supportsDarkTheme); |
| |
| Paint paint = new Paint(); |
| paint.setStyle(Paint.Style.FILL); |
| paint.setColor(Color.BLACK); |
| canvas.drawColor(Color.WHITE); |
| canvas.drawRect(0, 0, 8, 8, paint); |
| supportsDarkText = (WallpaperColors.fromBitmap(image) |
| .getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0; |
| Assert.assertFalse("Light surface shouldn't support dark text " |
| + "when it contains dark pixels.", supportsDarkText); |
| |
| WallpaperColors colors = new WallpaperColors(Color.valueOf(Color.GREEN), null, null); |
| fromBitmap = (colors.getColorHints() & WallpaperColors.HINT_FROM_BITMAP) != 0; |
| Assert.assertFalse("Object created from public constructor should not contain " |
| + "HINT_FROM_BITMAP.", fromBitmap); |
| } |
| |
| @Test |
| public void darkMainColorSupportsDarkTheme() { |
| final Color color = Color.valueOf(Color.BLACK); |
| WallpaperColors colors = new WallpaperColors(color, null, null); |
| Assert.assertTrue("Dark theme should be supported by dark main colors.", |
| (colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_THEME) != 0); |
| } |
| |
| /** |
| * WallpaperColors should not recycle bitmaps that it didn't create. |
| */ |
| @Test |
| public void wallpaperRecycleBitmapTest() { |
| Bitmap image = Bitmap.createBitmap(300, 300, Bitmap.Config.ARGB_8888); |
| WallpaperColors.fromBitmap(image); |
| Canvas canvas = new Canvas(); |
| // This would crash: |
| canvas.drawBitmap(image, 0, 0, new Paint()); |
| } |
| } |