1/*
2 * Copyright (C) 2010 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
17package com.android.camera.unittest;
18
19import com.android.camera.util.CameraUtil;
20
21import android.graphics.Matrix;
22import android.test.suitebuilder.annotation.SmallTest;
23
24import junit.framework.TestCase;
25
26@SmallTest
27public class CameraUnitTest extends TestCase {
28    public void testPrepareMatrix() {
29        Matrix matrix = new Matrix();
30        float[] points;
31        int[] expected;
32
33        CameraUtil.prepareMatrix(matrix, false, 0, 800, 480);
34        points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
35        expected = new int[] {0, 0, 400, 240, 800, 480, 400, 480, 100, 300};
36        matrix.mapPoints(points);
37        assertEquals(expected, points);
38
39        CameraUtil.prepareMatrix(matrix, false, 90, 800, 480);
40        points = new float[] {-1000, -1000,   0,   0, 1000, 1000, 0, 1000, -750, 250};
41        expected = new int[] {800, 0, 400, 240, 0, 480, 0, 240, 300, 60};
42        matrix.mapPoints(points);
43        assertEquals(expected, points);
44
45        CameraUtil.prepareMatrix(matrix, false, 180, 800, 480);
46        points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
47        expected = new int[] {800, 480, 400, 240, 0, 0, 400, 0, 700, 180};
48        matrix.mapPoints(points);
49        assertEquals(expected, points);
50
51        CameraUtil.prepareMatrix(matrix, true, 180, 800, 480);
52        points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
53        expected = new int[] {0, 480, 400, 240, 800, 0, 400, 0, 100, 180};
54        matrix.mapPoints(points);
55        assertEquals(expected, points);
56    }
57
58    private void assertEquals(int expected[], float[] actual) {
59        for (int i = 0; i < expected.length; i++) {
60            assertEquals("Array index " + i + " mismatch", expected[i], Math.round(actual[i]));
61        }
62    }
63}
64