kc3-lang/brotli/java/dec/TransformTest.java

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• Hash : 5025365d
  Author :
  Date : 2016-10-17T14:04:59
  

  Add Java port of Brotli decoder.
  

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• java/dec/TransformTest.java

• /* Copyright 2015 Google Inc. All Rights Reserved.
  
     Distributed under MIT license.
     See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
  */
  
  package org.brotli.dec;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  
  import java.nio.charset.StandardCharsets;
  import java.security.MessageDigest;
  import java.security.NoSuchAlgorithmException;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /**
   * Tests for {@link Transform}.
   */
  @RunWith(JUnit4.class)
  public class TransformTest {
  
    @Test
    public void testTrimAll() {
      byte[] output = new byte[2];
      byte[] input = "word".getBytes(StandardCharsets.UTF_8);
      Transform transform = new Transform("[", WordTransformType.OMIT_FIRST_5, "]");
      Transform.transformDictionaryWord(output, 0, input, 0, input.length, transform);
      assertArrayEquals(output, "[]".getBytes(StandardCharsets.UTF_8));
    }
  
    @Test
    public void testCapitalize() {
      byte[] output = new byte[8];
      byte[] input = "qæप".getBytes(StandardCharsets.UTF_8);
      Transform transform = new Transform("[", WordTransformType.UPPERCASE_ALL, "]");
      Transform.transformDictionaryWord(output, 0, input, 0, input.length, transform);
      assertArrayEquals(output, "[QÆय]".getBytes(StandardCharsets.UTF_8));
    }
  
    @Test
    public void testAllTransforms() throws NoSuchAlgorithmException {
      /* This string allows to apply all transforms: head and tail cutting, capitalization and
         turning to upper case; all results will be mutually different. */
      byte[] testWord = Transform.readUniBytes("o123456789abcdef");
      byte[] output = new byte[2259];
      int offset = 0;
      for (int i = 0; i < Transform.TRANSFORMS.length; ++i) {
        offset += Transform.transformDictionaryWord(
            output, offset, testWord, 0, testWord.length, Transform.TRANSFORMS[i]);
        output[offset++] = -1;
      }
      assertEquals(output.length, offset);
  
      MessageDigest md = MessageDigest.getInstance("SHA-256");
      md.update(output);
      byte[] digest = md.digest();
      String sha256 = String.format("%064x", new java.math.BigInteger(1, digest));
      assertEquals("60f1c7e45d788e24938c5a3919aaf41a7d8ad474d0ced6b9e4c0079f4d1da8c4", sha256);
    }
  }
  

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