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 */
16package android.support.v17.leanback.graphics;
17
18import static org.junit.Assert.assertEquals;
19import static org.mockito.Matchers.any;
20import static org.mockito.Matchers.eq;
21import static org.mockito.Mockito.verify;
22
23import android.graphics.Bitmap;
24import android.graphics.Canvas;
25import android.graphics.Paint;
26import android.graphics.Rect;
27import android.os.Build;
28import android.support.test.filters.MediumTest;
29import android.support.test.filters.SdkSuppress;
30import android.support.test.filters.SmallTest;
31import android.support.test.runner.AndroidJUnit4;
32
33import org.junit.Test;
34import org.junit.runner.RunWith;
35import org.mockito.Mockito;
36
37/**
38 * Unit test for {@link FitWidthBitmapDrawable}
39 */
40@RunWith(AndroidJUnit4.class)
41public 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