DecoderTest.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.aztec.decoder;
import com.google.zxing.aztec.encoder.EncoderTest;
import com.google.zxing.FormatException;
import com.google.zxing.ResultPoint;
import com.google.zxing.aztec.AztecDetectorResult;
import com.google.zxing.common.BitArray;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.DecoderResult;
import org.junit.Test;
import org.junit.Assert;
/**
* Tests {@link Decoder}.
*/
public final class DecoderTest extends Assert {
private static final ResultPoint[] NO_POINTS = new ResultPoint[0];
@Test
public void testHighLevelDecode() throws FormatException {
// no ECI codes
testHighLevelDecodeString("A. b.",
// 'A' P/S '. ' L/L b D/L '.'
"...X. ..... ...XX XXX.. ...XX XXXX. XX.X");
// initial ECI code 26 (switch to UTF-8)
testHighLevelDecodeString("��a",
// P/S FLG(n) 2 '2' '6' B/S 2 0xc3 0x87 L/L 'a'
"..... ..... .X. .X.. X... XXXXX ...X. XX....XX X....XXX XXX.. ...X.");
// initial character without ECI (must be interpreted as ISO_8859_1)
// followed by ECI code 26 (= UTF-8) and UTF-8 text
testHighLevelDecodeString("����a",
// B/S 1 0xb1 P/S FLG(n) 2 '2' '6' B/S 2 0xc3 0x87 L/L 'a'
"XXXXX ....X X.XX...X ..... ..... .X. .X.. X... XXXXX ...X. XX....XX X....XXX XXX.. ...X.");
// GS1 data
testHighLevelDecodeString(" 10123 3742",
// P/S FLG(n) 0 D/L 1 0 1 2 3 P/S FLG(n) 0 3 7 4 2
"..... ..... ... XXXX. ..XX ..X. ..XX .X.. .X.X .... ..... ... .X.X X..X .XX. .X..");
}
private static void testHighLevelDecodeString(String expectedString, String b) throws FormatException {
BitArray bits = EncoderTest.toBitArray(EncoderTest.stripSpace(b));
assertEquals("highLevelDecode() failed for input bits: " + b,
expectedString, Decoder.highLevelDecode(EncoderTest.toBooleanArray(bits)));
}
@Test
public void testAztecResult() throws FormatException {
BitMatrix matrix = BitMatrix.parse(
"X X X X X X X X X X X X X X \n" +
"X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X X X \n" +
" X X X X X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X \n" +
"X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X X X X \n" +
"X X X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X X \n",
"X ", " ");
AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, false, 30, 2);
DecoderResult result = new Decoder().decode(r);
assertEquals("88888TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT", result.getText());
assertArrayEquals(
new byte[] {-11, 85, 85, 117, 107, 90, -42, -75, -83, 107,
90, -42, -75, -83, 107, 90, -42, -75, -83, 107,
90, -42, -80},
result.getRawBytes());
assertEquals(180, result.getNumBits());
}
@Test
public void testAztecResultECI() throws FormatException {
BitMatrix matrix = BitMatrix.parse(
" X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X \n" +
" X X X X X X X X X X X X X X X X X \n" +
" X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X \n" +
"X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X \n" +
" X X X X X X X X X X X X X \n" +
" X X X \n" +
"X X X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X \n" +
" X X X X X X X X X X X \n" +
"X X X X X X X X \n",
"X ", " ");
AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, false, 15, 1);
DecoderResult result = new Decoder().decode(r);
assertEquals("Fran��ais", result.getText());
}
@Test(expected = FormatException.class)
public void testDecodeTooManyErrors() throws FormatException {
BitMatrix matrix = BitMatrix.parse(""
+ "X X . X . . . X X . . . X . . X X X . X . X X X X X . \n"
+ "X X . . X X . . . . . X X . . . X X . . . X . X . . X \n"
+ "X . . . X X . . X X X . X X . X X X X . X X . . X . . \n"
+ ". . . . X . X X . . X X . X X . X . X X X X . X . . X \n"
+ "X X X . . X X X X X . . . . . X X . . . X . X . X . X \n"
+ "X X . . . . . . . . X . . . X . X X X . X . . X . . . \n"
+ "X X . . X . . . . . X X . . . . . X . . . . X . . X X \n"
+ ". . . X . X . X . . . . . X X X X X X . . . . . . X X \n"
+ "X . . . X . X X X X X X . . X X X . X . X X X X X X . \n"
+ "X . . X X X . X X X X X X X X X X X X X . . . X . X X \n"
+ ". . . . X X . . . X . . . . . . . X X . . . X X . X . \n"
+ ". . . X X X . . X X . X X X X X . X . . X . . . . . . \n"
+ "X . . . . X . X . X . X . . . X . X . X X . X X . X X \n"
+ "X . X . . X . X . X . X . X . X . X . . . . . X . X X \n"
+ "X . X X X . . X . X . X . . . X . X . X X X . . . X X \n"
+ "X X X X X X X X . X . X X X X X . X . X . X . X X X . \n"
+ ". . . . . . . X . X . . . . . . . X X X X . . . X X X \n"
+ "X X . . X . . X . X X X X X X X X X X X X X . . X . X \n"
+ "X X X . X X X X . . X X X X . . X . . . . X . . X X X \n"
+ ". . . . X . X X X . . . . X X X X . . X X X X . . . . \n"
+ ". . X . . X . X . . . X . X X . X X . X . . . X . X . \n"
+ "X X . . X . . X X X X X X X . . X . X X X X X X X . . \n"
+ "X . X X . . X X . . . . . X . . . . . . X X . X X X . \n"
+ "X . . X X . . X X . X . X . . . . X . X . . X . . X . \n"
+ "X . X . X . . X . X X X X X X X X . X X X X . . X X . \n"
+ "X X X X . . . X . . X X X . X X . . X . . . . X X X . \n"
+ "X X . X . X . . . X . X . . . . X X . X . . X X . . . \n",
"X ", ". ");
AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, true, 16, 4);
new Decoder().decode(r);
}
@Test(expected = FormatException.class)
public void testDecodeTooManyErrors2() throws FormatException {
BitMatrix matrix = BitMatrix.parse(""
+ ". X X . . X . X X . . . X . . X X X . . . X X . X X . \n"
+ "X X . X X . . X . . . X X . . . X X . X X X . X . X X \n"
+ ". . . . X . . . X X X . X X . X X X X . X X . . X . . \n"
+ "X . X X . . X . . . X X . X X . X . X X . . . . . X . \n"
+ "X X . X . . X . X X . . . . . X X . . . . . X . . . X \n"
+ "X . . X . . . . . . X . . . X . X X X X X X X . . . X \n"
+ "X . . X X . . X . . X X . . . . . X . . . . . X X X . \n"
+ ". . X X X X . X . . . . . X X X X X X . . . . . . X X \n"
+ "X . . . X . X X X X X X . . X X X . X . X X X X X X . \n"
+ "X . . X X X . X X X X X X X X X X X X X . . . X . X X \n"
+ ". . . . X X . . . X . . . . . . . X X . . . X X . X . \n"
+ ". . . X X X . . X X . X X X X X . X . . X . . . . . . \n"
+ "X . . . . X . X . X . X . . . X . X . X X . X X . X X \n"
+ "X . X . . X . X . X . X . X . X . X . . . . . X . X X \n"
+ "X . X X X . . X . X . X . . . X . X . X X X . . . X X \n"
+ "X X X X X X X X . X . X X X X X . X . X . X . X X X . \n"
+ ". . . . . . . X . X . . . . . . . X X X X . . . X X X \n"
+ "X X . . X . . X . X X X X X X X X X X X X X . . X . X \n"
+ "X X X . X X X X . . X X X X . . X . . . . X . . X X X \n"
+ ". . X X X X X . X . . . . X X X X . . X X X . X . X . \n"
+ ". . X X . X . X . . . X . X X . X X . . . . X X . . . \n"
+ "X . . . X . X . X X X X X X . . X . X X X X X . X . . \n"
+ ". X . . . X X X . . . . . X . . . . . X X X X X . X . \n"
+ "X . . X . X X X X . X . X . . . . X . X X . X . . X . \n"
+ "X . . . X X . X . X X X X X X X X . X X X X . . X X . \n"
+ ". X X X X . . X . . X X X . X X . . X . . . . X X X . \n"
+ "X X . . . X X . . X . X . . . . X X . X . . X . X . X \n",
"X ", ". ");
AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, true, 16, 4);
new Decoder().decode(r);
}
@Test
public void testRawBytes() {
boolean[] bool0 = {};
boolean[] bool1 = { true };
boolean[] bool7 = { true, false, true, false, true, false, true };
boolean[] bool8 = { true, false, true, false, true, false, true, false };
boolean[] bool9 = { true, false, true, false, true, false, true, false,
true };
boolean[] bool16 = { false, true, true, false, false, false, true, true,
true, true, false, false, false, false, false, true };
byte[] byte0 = {};
byte[] byte1 = { -128 };
byte[] byte7 = { -86 };
byte[] byte8 = { -86 };
byte[] byte9 = { -86, -128 };
byte[] byte16 = { 99, -63 };
assertArrayEquals(byte0, Decoder.convertBoolArrayToByteArray(bool0));
assertArrayEquals(byte1, Decoder.convertBoolArrayToByteArray(bool1));
assertArrayEquals(byte7, Decoder.convertBoolArrayToByteArray(bool7));
assertArrayEquals(byte8, Decoder.convertBoolArrayToByteArray(bool8));
assertArrayEquals(byte9, Decoder.convertBoolArrayToByteArray(bool9));
assertArrayEquals(byte16, Decoder.convertBoolArrayToByteArray(bool16));
}
}