/*
* Copyright 2008 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 ntu.com.google.zxing.common.reedsolomon;
import org.junit.Test;
import java.util.Random;
/**
* @author Sean Owen
*/
public final class ReedSolomonEncoderQRCodeTestCase extends AbstractReedSolomonTestCase {
/**
* Tests example given in ISO 18004, Annex I
*/
@Test
public void testISO18004Example() {
int[] dataBytes = {
0x10, 0x20, 0x0C, 0x56, 0x61, 0x80, 0xEC, 0x11,
0xEC, 0x11, 0xEC, 0x11, 0xEC, 0x11, 0xEC, 0x11 };
int[] expectedECBytes = {
0xA5, 0x24, 0xD4, 0xC1, 0xED, 0x36, 0xC7, 0x87,
0x2C, 0x55 };
doTestQRCodeEncoding(dataBytes, expectedECBytes);
}
@Test
public void testQRCodeVersusDecoder() throws Exception {
Random random = getRandom();
ReedSolomonEncoder encoder = new ReedSolomonEncoder(GenericGF.QR_CODE_FIELD_256);
ReedSolomonDecoder decoder = new ReedSolomonDecoder(GenericGF.QR_CODE_FIELD_256);
for (int i = 0; i < 100; i++) {
int size = random.nextInt(1000);
int[] toEncode = new int[size];
int ecBytes = 1 + random.nextInt(2 * (1 + size / 8));
int dataBytes = size - ecBytes;
for (int j = 0; j < dataBytes; j++) {
toEncode[j] = random.nextInt(256);
}
int[] original = new int[dataBytes];
System.arraycopy(toEncode, 0, original, 0, dataBytes);
encoder.encode(toEncode, ecBytes);
decoder.decode(toEncode, ecBytes);
assertArraysEqual(original, 0, toEncode, 0, dataBytes);
}
}
// Need more tests I am sure
}