Pattern pattern = Pattern.compile("Multiple entries with same key: four=(.*) and four=(.*)");
      assertThat(expected).hasMessageThat().matches(pattern);
      Matcher matcher = pattern.matcher(expected.getMessage());
      assertThat(matcher.matches()).isTrue();
      assertThat(matcher.group(1)).isNotEqualTo(matcher.group(2));
    }
  }

  public void testOf() {
    assertMapEquals(ImmutableMap.of("one", 1), "one", 1);

    int getBatchLimit( byte command ) {
        /* the default limit is 0 batched messages before this
         * one, meaning this message cannot be batched.
         */
        return 0;
    }

    /* 
     * We overload this method from ServerMessageBlock because
     * we want writeAndXWireFormat to write the parameterWords
     * and bytes. This is so we can write batched smbs because

        Predicate<Artifact> predGroupId = a -> groupId.matches(createPathProxy(a.getGroupId()));
        Predicate<Artifact> predArtifactId = a -> artifactId.matches(createPathProxy(a.getArtifactId()));
        return predGroupId.and(predArtifactId);
    }

    /**
     * In order to reuse the glob matcher from the filesystem, we need

    }

    /**
     * Selects the type of path where to place the given dependency.
     * This method returns one of the values specified in the given collection.
     * This method does not handle the patch-module paths, because the patches
     * depend on which modules have been previously added on the module-paths.
     *
     * <p>If the dependency can be a constituent of both the class-path and the module-path,

   * Returns a predicate that evaluates to {@code true} if the {@code CharSequence} being tested
   * contains any match for the given regular expression pattern. The test used is equivalent to
   * {@code Pattern.compile(pattern).matcher(arg).find()}
   *
   * @throws IllegalArgumentException if the pattern is invalid
   * @since 3.0
   */
  @GwtIncompatible // Only used by other GWT-incompatible code.

  private static void checkTryParse(String input) {
    Double expected = referenceTryParse(input);
    assertThat(Doubles.tryParse(input)).isEqualTo(expected);
    if (expected != null && !Doubles.FLOATING_POINT_PATTERN.matcher(input).matches()) {
      // TODO(cpovirk): Use SourceCodeEscapers if it is added to Guava.
      StringBuilder escapedInput = new StringBuilder();
      for (char c : input.toCharArray()) {
        if (c >= 0x20 && c <= 0x7E) {

  private static void checkTryParse(String input) {
    Double expected = referenceTryParse(input);
    assertThat(Doubles.tryParse(input)).isEqualTo(expected);
    if (expected != null && !Doubles.FLOATING_POINT_PATTERN.matcher(input).matches()) {
      // TODO(cpovirk): Use SourceCodeEscapers if it is added to Guava.
      StringBuilder escapedInput = new StringBuilder();
      for (char c : input.toCharArray()) {
        if (c >= 0x20 && c <= 0x7E) {

    checkArgument(
        !separatorPattern.matcher("").matches(),
        "The pattern may not match the empty string: %s",
        separatorPattern);

    return new Splitter(
        new Strategy() {
          @Override
          public SplittingIterator iterator(final Splitter splitter, CharSequence toSplit) {
            final CommonMatcher matcher = separatorPattern.matcher(toSplit);

  public abstract boolean matches(char c);

  // Non-static factories

  /** Returns a matcher that matches any character not matched by this matcher. */
  // @Override under Java 8 but not under Java 7
  @Override
  public CharMatcher negate() {
    return new Negated(this);
  }

  /**
   * Returns a matcher that matches any character matched by both this matcher and {@code other}.
   */

    assertTrue(matcher.matches(s.charAt(0)));
    assertTrue(matcher.apply(s.charAt(0)));
    assertEquals(0, matcher.indexIn(s));
    assertEquals(0, matcher.indexIn(s, 0));
    assertEquals(-1, matcher.indexIn(s, 1));
    assertEquals(0, matcher.lastIndexIn(s));
    assertTrue(matcher.matchesAnyOf(s));
    assertTrue(matcher.matchesAllOf(s));
    assertFalse(matcher.matchesNoneOf(s));