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/*
* Copyright (C) 2010 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 com.android.camera.unittest;
import com.android.camera.util.CameraUtil;
import android.graphics.Matrix;
import android.test.suitebuilder.annotation.SmallTest;
import junit.framework.TestCase;
@SmallTest
public class CameraUnitTest extends TestCase {
public void testPrepareMatrix() {
Matrix matrix = new Matrix();
float[] points;
int[] expected;
CameraUtil.prepareMatrix(matrix, false, 0, 800, 480);
points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
expected = new int[] {0, 0, 400, 240, 800, 480, 400, 480, 100, 300};
matrix.mapPoints(points);
assertEquals(expected, points);
CameraUtil.prepareMatrix(matrix, false, 90, 800, 480);
points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
expected = new int[] {800, 0, 400, 240, 0, 480, 0, 240, 300, 60};
matrix.mapPoints(points);
assertEquals(expected, points);
CameraUtil.prepareMatrix(matrix, false, 180, 800, 480);
points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
expected = new int[] {800, 480, 400, 240, 0, 0, 400, 0, 700, 180};
matrix.mapPoints(points);
assertEquals(expected, points);
CameraUtil.prepareMatrix(matrix, true, 180, 800, 480);
points = new float[] {-1000, -1000, 0, 0, 1000, 1000, 0, 1000, -750, 250};
expected = new int[] {0, 480, 400, 240, 800, 0, 400, 0, 100, 180};
matrix.mapPoints(points);
assertEquals(expected, points);
}
private void assertEquals(int expected[], float[] actual) {
for (int i = 0; i < expected.length; i++) {
assertEquals("Array index " + i + " mismatch", expected[i], Math.round(actual[i]));
}
}
}
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