alphabetic = settings.getAsBoolean("alphabetic", true);
        digit = settings.getAsBoolean("digit", true);
        letter = settings.getAsBoolean("letter", true);
    }

    @Override
    public TokenStream create(final TokenStream tokenStream) {
        return new CharTypeFilter(tokenStream, alphabetic, digit, letter);
    }

 * @author shinsuke
 *
 */
public class ContentLengthHelperTest extends PlainTestCase {
    private static long DEFAULT_MAX_LENGTH = 10L * 1024L * 1024L;

    public ContentLengthHelper contentLengthHelper;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        StandardCrawlerContainer container = new StandardCrawlerContainer().singleton("contentLengthHelper", ContentLengthHelper.class);

    //                                                                              ======
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameDictStemmeroverride()));
    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

    //                                                                              ======
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameElevateword()));
    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

    //                                                                              ======
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameScheduler()));
    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

                Objects.requireNonNull(artifactRelocationSources, "artifactRelocationSources cannot be null");
        this.delegate = new ArtifactDescriptorReaderDelegate();
    }

    @Override
    public ArtifactDescriptorResult readArtifactDescriptor(
            RepositorySystemSession session, ArtifactDescriptorRequest request) throws ArtifactDescriptorException {

      this.tester = tester;
    }

    @Override
    <R> R dummyReturnValue(TypeToken<R> returnType) {
      return tester.getDummyValue(returnType);
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return obj instanceof SerializableDummyProxy;
    }

    @Override
    public int hashCode() {
      return 0;
    }
  }

         *            ロケール
         */
        public DateFormatIterator(final Locale locale) {
            this.locale = locale;
        }

        @Override
        public boolean hasNext() {
            return index < STYLES.length;
        }

        @Override
        public DateFormat next() {
            if (!hasNext()) {
                throw new NoSuchElementException();
            }

        }
        return samlCredential;
    }

    @Override
    public void resolveCredential(final LoginCredentialResolver resolver) {
        resolver.resolve(SamlCredential.class, credential -> OptionalEntity.of(credential.getUser()));
    }

    @Override
    public String logout(final FessUserBean user) {
        if (user.getFessUser() instanceof SamlUser) {

////

### Settings and testing

Then it would be very easy to provide a different settings object during testing by creating a dependency override for `get_settings`:

```Python hl_lines="9-10  13  21"
{!../../docs_src/settings/app02/test_main.py!}
```

In the dependency override we set a new value for the `admin_email` when creating the new `Settings` object, and then we return that new object.

Then we can test that it is used.