rxing/java_test/java/com/google/zxing/datamatrix/encoder/PlacementTestCase.java

/*
 * Copyright 2006 Jeremias Maerki
 *
 * 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.datamatrix.encoder;

import org.junit.Assert;
import org.junit.Test;

import java.util.regex.Pattern;

/**
 * Tests the DataMatrix placement algorithm.
 */
public final class PlacementTestCase extends Assert {

  private static final Pattern SPACE = Pattern.compile(" ");

  @Test
  public void testPlacement() {
    String codewords = unvisualize("66 74 78 66 74 78 129 56 35 102 192 96 226 100 156 1 107 221"); //"AIMAIM" encoded
    DebugPlacement placement = new DebugPlacement(codewords, 12, 12);
    placement.place();
    String[] expected = {
        "011100001111",
        "001010101000",
        "010001010100",
        "001010100010",
        "000111000100",
        "011000010100",
        "000100001101",
        "011000010000",
        "001100001101",
        "100010010111",
        "011101011010",
        "001011001010"};
    String[] actual = placement.toBitFieldStringArray();
    for (int i = 0; i < actual.length; i++) {
      assertEquals("Row " + i, expected[i], actual[i]);
    }
  }

  private static String unvisualize(CharSequence visualized) {
    StringBuilder sb = new StringBuilder();
    for (String token : SPACE.split(visualized)) {
      sb.append((char) Integer.parseInt(token));
    }
    return sb.toString();
  }

}