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      1 /*
      2  * Copyright (C) 2008 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 
     17 package android.graphics.cts;
     18 
     19 import static org.junit.Assert.assertEquals;
     20 import static org.junit.Assert.assertFalse;
     21 import static org.junit.Assert.assertTrue;
     22 
     23 import android.graphics.Bitmap;
     24 import android.graphics.BitmapShader;
     25 import android.graphics.Color;
     26 import android.graphics.Matrix;
     27 import android.graphics.Shader;
     28 import android.support.test.filters.SmallTest;
     29 import android.support.test.runner.AndroidJUnit4;
     30 
     31 import org.junit.Test;
     32 import org.junit.runner.RunWith;
     33 
     34 @SmallTest
     35 @RunWith(AndroidJUnit4.class)
     36 public class ShaderTest {
     37     @Test
     38     public void testConstructor() {
     39         new Shader();
     40     }
     41 
     42     @Test
     43     public void testAccessLocalMatrix() {
     44         int width = 80;
     45         int height = 120;
     46         int[] color = new int[width * height];
     47         Bitmap bitmap = Bitmap.createBitmap(color, width, height, Bitmap.Config.RGB_565);
     48 
     49         Shader shader = new BitmapShader(bitmap, Shader.TileMode.REPEAT, Shader.TileMode.REPEAT);
     50         Matrix m = new Matrix();
     51 
     52         shader.setLocalMatrix(m);
     53         assertFalse(shader.getLocalMatrix(m));
     54 
     55         shader.setLocalMatrix(null);
     56         assertFalse(shader.getLocalMatrix(m));
     57     }
     58 
     59     @Test
     60     public void testMutateBaseObject() {
     61         Shader shader = new Shader();
     62         shader.setLocalMatrix(null);
     63     }
     64 
     65     @Test
     66     public void testGetSetLocalMatrix() {
     67         Matrix skew10x20 = new Matrix();
     68         skew10x20.setSkew(10, 20);
     69 
     70         Matrix scale2x3 = new Matrix();
     71         scale2x3.setScale(2, 3);
     72 
     73         // setup shader
     74         Bitmap bitmap = Bitmap.createBitmap(10, 10, Bitmap.Config.RGB_565);
     75         bitmap.eraseColor(Color.BLUE);
     76         Shader shader = new BitmapShader(bitmap, Shader.TileMode.REPEAT, Shader.TileMode.REPEAT);
     77 
     78         // get null
     79         shader.setLocalMatrix(null);
     80         Matrix paramMatrix = new Matrix(skew10x20);
     81         assertFalse("shader should have no matrix set", shader.getLocalMatrix(paramMatrix));
     82         assertEquals("matrix param not modified when no matrix set", skew10x20, paramMatrix);
     83 
     84         // get nonnull
     85         shader.setLocalMatrix(scale2x3);
     86         assertTrue("shader should have matrix set", shader.getLocalMatrix(paramMatrix));
     87         assertEquals("param matrix should be updated", scale2x3, paramMatrix);
     88     }
     89 
     90     @Test(expected = NullPointerException.class)
     91     public void testGetWithNullParam() {
     92         Shader shader = new Shader();
     93         Matrix matrix = new Matrix();
     94         matrix.setScale(10, 10);
     95         shader.setLocalMatrix(matrix);
     96 
     97         shader.getLocalMatrix(null);
     98     }
     99 }
    100