@Test
  public void testTypeExtraction() {
    CLI command = CLIConfigurator.define(CommandForTypeExtractTest.class);

    assertThat(command.getOptions()).hasSize(6);
    TypedOption model = (TypedOption) find(command.getOptions(), "list");
    assertThat(model.getType()).isEqualTo(String.class);
    assertThat(model.isMultiValued()).isTrue();

    model = (TypedOption) find(command.getOptions(), "set");
    assertThat(model.getType()).isEqualTo(Character.class);
    assertThat(model.isMultiValued()).isTrue();

    model = (TypedOption) find(command.getOptions(), "collection");
    assertThat(model.getType()).isEqualTo(Integer.class);
    assertThat(model.isMultiValued()).isTrue();

    model = (TypedOption) find(command.getOptions(), "tree");
    assertThat(model.getType()).isEqualTo(String.class);
    assertThat(model.isMultiValued()).isTrue();

    model = (TypedOption) find(command.getOptions(), "al");
    assertThat(model.getType()).isEqualTo(String.class);
    assertThat(model.isMultiValued()).isTrue();

    model = (TypedOption) find(command.getOptions(), "array");
    assertThat(model.getType()).isEqualTo(Integer.TYPE);
    assertThat(model.isMultiValued()).isTrue();
  }
  @Test
  public void testHelloCLIFromClass() {
    CLI command = CLIConfigurator.define(HelloClI.class);

    assertThat(command.getOptions()).hasSize(1);
    TypedOption option = (TypedOption) find(command.getOptions(), "name");
    assertThat(option.getLongName()).isEqualToIgnoringCase("name");
    assertThat(option.getShortName()).isEqualToIgnoringCase("n");
    assertThat(option.getType()).isEqualTo(String.class);
    assertThat(option.getArgName()).isEqualTo("name");
    assertThat(option.getDescription()).isEqualToIgnoringCase("your name");
    assertThat(option.getDefaultValue()).isNull();
    assertThat(option.acceptValue()).isTrue();
    assertThat(option.isMultiValued()).isFalse();
    assertThat(option.isRequired()).isTrue();
  }
  /**
   * Creates the value for the given option from the given raw value.
   *
   * @param value the value
   * @return the created value
   */
  public static <T> T create(String value, TypedOption<T> option) {
    Objects.requireNonNull(option);
    if (value == null) {
      value = option.getDefaultValue();
    }

    if (value == null) {
      return null;
    }

    try {
      if (option.getConverter() != null) {
        return Converters.create(value, option.getConverter());
      } else {
        return Converters.create(option.getType(), value);
      }
    } catch (Exception e) {
      throw new InvalidValueException(option, value, e);
    }
  }
 private boolean isBoolean(TypedOption option) {
   Class type = option.getType();
   return type == Boolean.TYPE || type == Boolean.class;
 }