mirror of
https://github.com/starovoid/rxing.git
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360 lines
13 KiB
Java
360 lines
13 KiB
Java
/*
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* Copyright 2014 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.zxing.oned;
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import com.google.zxing.common.BitMatrixTestCase;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.Test;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.RXingResult;
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import com.google.zxing.Writer;
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import com.google.zxing.common.BitArray;
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import com.google.zxing.common.BitMatrix;
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import java.util.Map;
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import java.util.EnumMap;
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/**
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* Tests {@link Code128Writer}.
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*/
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public class Code128WriterTestCase extends Assert {
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private static final String FNC1 = "11110101110";
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private static final String FNC2 = "11110101000";
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private static final String FNC3 = "10111100010";
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private static final String FNC4A = "11101011110";
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private static final String FNC4B = "10111101110";
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private static final String START_CODE_A = "11010000100";
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private static final String START_CODE_B = "11010010000";
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private static final String START_CODE_C = "11010011100";
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private static final String SWITCH_CODE_A = "11101011110";
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private static final String SWITCH_CODE_B = "10111101110";
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private static final String QUIET_SPACE = "00000";
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private static final String STOP = "1100011101011";
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private static final String LF = "10000110010";
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private Writer writer;
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private Code128Reader reader;
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@Before
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public void setUp() {
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writer = new Code128Writer();
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reader = new Code128Reader();
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}
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@Test
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public void testEncodeWithFunc3() throws Exception {
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String toEncode = "\u00f3" + "123";
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String expected = QUIET_SPACE + START_CODE_B + FNC3 +
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// "1" "2" "3" check digit 51
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"10011100110" + "11001110010" + "11001011100" + "11101000110" + STOP + QUIET_SPACE;
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BitMatrix result = encode(toEncode, false, "123");
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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int width = result.getWidth();
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result = encode(toEncode, true, "123");
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testEncodeWithFunc2() throws Exception {
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String toEncode = "\u00f2" + "123";
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String expected = QUIET_SPACE + START_CODE_B + FNC2 +
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// "1" "2" "3" check digit 56
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"10011100110" + "11001110010" + "11001011100" + "11100010110" + STOP + QUIET_SPACE;
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BitMatrix result = encode(toEncode, false, "123");
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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int width = result.getWidth();
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result = encode(toEncode, true, "123");
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testEncodeWithFunc1() throws Exception {
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String toEncode = "\u00f1" + "123";
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String expected = QUIET_SPACE + START_CODE_C + FNC1 +
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// "12" "3" check digit 92
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"10110011100" + SWITCH_CODE_B + "11001011100" + "10101111000" + STOP + QUIET_SPACE;
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BitMatrix result = encode(toEncode, false, "123");
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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int width = result.getWidth();
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result = encode(toEncode, true, "123");
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testRoundtrip() throws Exception {
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String toEncode = "\u00f1" + "10958" + "\u00f1" + "17160526";
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String expected = "1095817160526";
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BitMatrix encRXingResult = encode(toEncode, false, expected);
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int width = encRXingResult.getWidth();
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encRXingResult = encode(toEncode, true, expected);
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//Compact encoding has one latch less and encodes as STARTA,FNC1,1,CODEC,09,58,FNC1,17,16,05,26
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assertEquals(width, encRXingResult.getWidth() + 11);
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}
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@Test
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public void testLongCompact() throws Exception {
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//test longest possible input
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String toEncode = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
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encode(toEncode, true, toEncode);
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}
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@Test
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public void testShift() throws Exception {
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//compare fast to compact
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String toEncode = "a\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\n";
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BitMatrix result = encode(toEncode, false, toEncode);
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int width = result.getWidth();
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result = encode(toEncode, true, toEncode);
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//big difference since the fast algoritm doesn't make use of SHIFT
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assertEquals(width, result.getWidth() + 253);
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}
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@Test
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public void testDigitMixCompaction() throws Exception {
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//compare fast to compact
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String toEncode = "A1A12A123A1234A12345AA1AA12AA123AA1234AA1235";
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BitMatrix result = encode(toEncode, false, toEncode);
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int width = result.getWidth();
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result = encode(toEncode, true, toEncode);
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//very good, no difference
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testCompaction1() throws Exception {
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//compare fast to compact
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String toEncode = "AAAAAAAAAAA12AAAAAAAAA";
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BitMatrix result = encode(toEncode, false, toEncode);
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int width = result.getWidth();
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result = encode(toEncode, true, toEncode);
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//very good, no difference
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testCompaction2() throws Exception {
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//compare fast to compact
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String toEncode = "AAAAAAAAAAA1212aaaaaaaaa";
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BitMatrix result = encode(toEncode, false, toEncode);
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int width = result.getWidth();
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result = encode(toEncode, true, toEncode);
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//very good, no difference
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testEncodeWithFunc4() throws Exception {
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String toEncode = "\u00f4" + "123";
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String expected = QUIET_SPACE + START_CODE_B + FNC4B +
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// "1" "2" "3" check digit 59
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"10011100110" + "11001110010" + "11001011100" + "11100011010" + STOP + QUIET_SPACE;
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BitMatrix result = encode(toEncode, false, null);
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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int width = result.getWidth();
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result = encode(toEncode, true, null);
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testEncodeWithFncsAndNumberInCodesetA() throws Exception {
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String toEncode = "\n" + "\u00f1" + "\u00f4" + "1" + "\n";
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String expected = QUIET_SPACE + START_CODE_A + LF + FNC1 + FNC4A +
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"10011100110" + LF + "10101111000" + STOP + QUIET_SPACE;
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BitMatrix result = encode(toEncode, false, null);
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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int width = result.getWidth();
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result = encode(toEncode, true, null);
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assertEquals(width, result.getWidth());
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}
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@Test
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public void testEncodeSwitchBetweenCodesetsAAndB() throws Exception {
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// start with A switch to B and back to A
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testEncode("\0ABab\u0010", QUIET_SPACE + START_CODE_A +
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// "\0" "A" "B" Switch to B "a" "b"
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"10100001100" + "10100011000" + "10001011000" + SWITCH_CODE_B + "10010110000" + "10010000110" +
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// Switch to A "\u0010" check digit
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SWITCH_CODE_A + "10100111100" + "11001110100" + STOP + QUIET_SPACE);
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// start with B switch to A and back to B
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// the compact encoder encodes this shorter as STARTB,a,b,SHIFT,NUL,a,b
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testEncode("ab\0ab", QUIET_SPACE + START_CODE_B +
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// "a" "b" Switch to A "\0" Switch to B
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"10010110000" + "10010000110" + SWITCH_CODE_A + "10100001100" + SWITCH_CODE_B +
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// "a" "b" check digit
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"10010110000" + "10010000110" + "11010001110" + STOP + QUIET_SPACE);
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}
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private void testEncode(String toEncode, String expected) throws Exception {
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BitMatrix result = encode(toEncode, false, toEncode);
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(toEncode, expected, actual);
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int width = result.getWidth();
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result = encode(toEncode, true, toEncode);
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assertTrue(result.getWidth() <= width);
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}
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@Test(expected = IllegalArgumentException.class)
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public void testEncodeWithForcedCodeSetFailureCodeSetABadCharacter() throws Exception {
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// Lower case characters should not be accepted when the code set is forced to A.
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String toEncode = "ASDFx0123";
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "A");
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writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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}
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@Test(expected = IllegalArgumentException.class)
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public void testEncodeWithForcedCodeSetFailureCodeSetBBadCharacter() throws Exception {
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String toEncode = "ASdf\00123"; // \0 (ascii value 0)
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// Characters with ASCII value below 32 should not be accepted when the code set is forced to B.
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "B");
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writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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}
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@Test(expected = IllegalArgumentException.class)
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public void testEncodeWithForcedCodeSetFailureCodeSetCBadCharactersNonNum() throws Exception {
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String toEncode = "123a5678";
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// Non-digit characters should not be accepted when the code set is forced to C.
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "C");
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writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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}
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@Test(expected = IllegalArgumentException.class)
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public void testEncodeWithForcedCodeSetFailureCodeSetCBadCharactersFncCode() throws Exception {
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String toEncode = "123\u00f2a678";
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// Function codes other than 1 should not be accepted when the code set is forced to C.
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "C");
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writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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}
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@Test(expected = IllegalArgumentException.class)
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public void testEncodeWithForcedCodeSetFailureCodeSetCWrongAmountOfDigits() throws Exception {
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String toEncode = "123456789";
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// An uneven amount of digits should not be accepted when the code set is forced to C.
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "C");
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writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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}
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@Test
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public void testEncodeWithForcedCodeSetFailureCodeSetA() throws Exception {
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String toEncode = "AB123";
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// would default to B "A" "B" "1"
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String expected = QUIET_SPACE + START_CODE_A + "10100011000" + "10001011000" + "10011100110" +
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// "2" "3" check digit 10
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"11001110010" + "11001011100" + "11001000100" + STOP + QUIET_SPACE;
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "A");
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BitMatrix result = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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}
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@Test
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public void testEncodeWithForcedCodeSetFailureCodeSetB() throws Exception {
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String toEncode = "1234";
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// would default to C "1" "2" "3"
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String expected = QUIET_SPACE + START_CODE_B + "10011100110" + "11001110010" + "11001011100" +
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// "4" check digit 88
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"11001001110" + "11110010010" + STOP + QUIET_SPACE;
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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hints.put(EncodeHintType.FORCE_CODE_SET, "B");
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BitMatrix result = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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String actual = BitMatrixTestCase.matrixToString(result);
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assertEquals(expected, actual);
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}
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private BitMatrix encode(String toEncode, boolean compact, String expectedLoopback) throws Exception {
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Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
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if (compact) {
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hints.put(EncodeHintType.CODE128_COMPACT, Boolean.TRUE);
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}
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BitMatrix encRXingResult = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0, hints);
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if (expectedLoopback != null) {
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BitArray row = encRXingResult.getRow(0, null);
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RXingResult rtRXingResult = reader.decodeRow(0, row, null);
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String actual = rtRXingResult.getText();
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assertEquals(expectedLoopback, actual);
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}
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if (compact) {
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//check that what is encoded compactly yields the same on loopback as what was encoded fast.
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BitArray row = encRXingResult.getRow(0, null);
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RXingResult rtRXingResult = reader.decodeRow(0, row, null);
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String actual = rtRXingResult.getText();
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BitMatrix encRXingResultFast = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0);
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row = encRXingResultFast.getRow(0, null);
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rtRXingResult = reader.decodeRow(0, row, null);
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assertEquals(rtRXingResult.getText(), actual);
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}
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return encRXingResult;
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}
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}
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