RGBLuminanceSourceTestCase.java
/*
* Copyright 2014 ZXing authors
*
* 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.google.zxing;
import org.junit.Assert;
import org.junit.Test;
/**
* Tests {@link RGBLuminanceSource}.
*/
public final class RGBLuminanceSourceTestCase extends Assert {
private static final RGBLuminanceSource SOURCE = new RGBLuminanceSource(3, 3, new int[] {
0x000000, 0x7F7F7F, 0xFFFFFF,
0xFF0000, 0x00FF00, 0x0000FF,
0x0000FF, 0x00FF00, 0xFF0000});
@Test
public void testCrop() {
assertTrue(SOURCE.isCropSupported());
LuminanceSource cropped = SOURCE.crop(1, 1, 1, 1);
assertEquals(1, cropped.getHeight());
assertEquals(1, cropped.getWidth());
assertArrayEquals(new byte[] { 0x7F }, cropped.getRow(0, null));
}
@Test
public void testMatrix() {
assertArrayEquals(new byte[] { 0x00, 0x7F, (byte) 0xFF, 0x3F, 0x7F, 0x3F, 0x3F, 0x7F, 0x3F },
SOURCE.getMatrix());
LuminanceSource croppedFullWidth = SOURCE.crop(0, 1, 3, 2);
assertArrayEquals(new byte[] { 0x3F, 0x7F, 0x3F, 0x3F, 0x7F, 0x3F },
croppedFullWidth.getMatrix());
LuminanceSource croppedCorner = SOURCE.crop(1, 1, 2, 2);
assertArrayEquals(new byte[] { 0x7F, 0x3F, 0x7F, 0x3F },
croppedCorner.getMatrix());
}
@Test
public void testGetRow() {
assertArrayEquals(new byte[] { 0x3F, 0x7F, 0x3F }, SOURCE.getRow(2, new byte[3]));
}
@Test
public void testToString() {
assertEquals("#+ \n#+#\n#+#\n", SOURCE.toString());
}
}