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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package androidx.leanback.graphics;
     17 
     18 import static org.junit.Assert.assertEquals;
     19 import static org.mockito.Matchers.any;
     20 import static org.mockito.Matchers.eq;
     21 import static org.mockito.Mockito.verify;
     22 
     23 import android.graphics.Bitmap;
     24 import android.graphics.Canvas;
     25 import android.graphics.Paint;
     26 import android.graphics.Rect;
     27 import android.os.Build;
     28 import android.support.test.filters.MediumTest;
     29 import android.support.test.filters.SdkSuppress;
     30 import android.support.test.filters.SmallTest;
     31 import android.support.test.runner.AndroidJUnit4;
     32 
     33 import org.junit.Test;
     34 import org.junit.runner.RunWith;
     35 import org.mockito.Mockito;
     36 
     37 /**
     38  * Unit test for {@link FitWidthBitmapDrawable}
     39  */
     40 @RunWith(AndroidJUnit4.class)
     41 public class FitWidthBitmapDrawableTest {
     42     private final static int SCREEN_WIDTH = 1600;
     43     private final static int SCREEN_HEIGHT = 1080;
     44     private final static int WIDTH = 300;
     45     private final static int HEIGHT = 600;
     46     private Bitmap bitmap = Bitmap.createBitmap(WIDTH, HEIGHT, Bitmap.Config.ARGB_8888);
     47 
     48     @MediumTest
     49     @Test
     50     public void draw_withOffset() {
     51         int offset = 600;
     52         FitWidthBitmapDrawable drawable = new FitWidthBitmapDrawable();
     53         drawable.setBitmap(bitmap);
     54         drawable.setVerticalOffset(offset);
     55         Rect bounds = new Rect(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
     56         drawable.setBounds(bounds);
     57 
     58         Canvas canvas = Mockito.mock(Canvas.class);
     59         drawable.draw(canvas);
     60 
     61         Rect expectedBounds = bounds;
     62         verify(canvas).clipRect(expectedBounds);
     63 
     64         Rect bitmapBounds = new Rect(0, 0, WIDTH, HEIGHT);
     65         int nH = (int) (((float)SCREEN_WIDTH/WIDTH * HEIGHT) + offset);
     66         Rect expectedDest = new Rect(0, offset, SCREEN_WIDTH, nH);
     67         verify(canvas).drawBitmap(eq(bitmap), eq(bitmapBounds), eq(expectedDest), any(Paint.class));
     68     }
     69 
     70     @SmallTest
     71     @SdkSuppress(minSdkVersion = Build.VERSION_CODES.KITKAT)
     72     @Test
     73     public void constantState() {
     74         FitWidthBitmapDrawable drawable = new FitWidthBitmapDrawable();
     75         drawable.setBitmap(bitmap);
     76         drawable.setVerticalOffset(600);
     77 
     78         // getConstantState().newDrawable() will create a new drawable with shared states:
     79         FitWidthBitmapDrawable drawable2 = (FitWidthBitmapDrawable)
     80                 drawable.getConstantState().newDrawable();
     81         drawable.setAlpha(128);
     82         assertEquals(128, drawable2.getAlpha());
     83 
     84         // after mutate(), drawable2 will have its own state
     85         drawable2.mutate();
     86         drawable.setAlpha(64);
     87         assertEquals(64, drawable.getAlpha());
     88         assertEquals(128, drawable2.getAlpha());
     89     }
     90 }
     91