private static <T> void testSuccessfulForwarding(
      Class<T> interfaceType, Method method, Function<? super T, ? extends T> wrapperFunction) {
    new InteractionTester<T>(interfaceType, method).testInteraction(wrapperFunction);
  }

  private static <T> void testExceptionPropagation(
      Class<T> interfaceType, Method method, Function<? super T, ? extends T> wrapperFunction) {
    RuntimeException exception = new RuntimeException();

        }
    }

    /**
     * Gets the content of the response using the provided parser function.
     *
     * @param <T> the type of the parsed content.
     * @param parser the function to parse the content.
     * @return the parsed content.
     */
    public <T> T getContent(final Function<CurlResponse, T> parser) {
        return parser.apply(this);
    }

    /**

     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",
            "The system cannot find the file specified.", "Bad password.", "The system cannot find the path specified.", "reserved",
            "The client does not have the necessary access rights to perform the requested function.", "Access is denied.",

     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",
            "The system cannot find the file specified.", "Bad password.", "The system cannot find the path specified.", "reserved",
            "The client does not have the necessary access rights to perform the requested function.", "Access is denied.",

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.score;

import java.util.Arrays;
import java.util.Map;
import java.util.function.Function;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.mylasta.direction.FessConfig;

 *     their equivalent on the result of {@code Traverser.forTree(tree)} where {@code tree}
 *     implements {@code SuccessorsFunction}, which has a similar API as {@link #children} or can be
 *     the same lambda function as passed into {@link #using(Function)}.
 *     <p>This class is scheduled to be removed in October 2019.
 */
// TODO(b/68134636): Remove by 2019-10
@Deprecated
@Beta
@GwtCompatible
public abstract class TreeTraverser<T> {

///

/// tip

If you want to call `async` functions in your tests apart from sending requests to your FastAPI application (e.g. asynchronous database functions), have a look at the [Async Tests](../advanced/async-tests.md){.internal-link target=_blank} in the advanced tutorial.

///

## Separating tests { #separating-tests }

        assertTrue(msgs.length >= 3, "Expect at least the first 3 entries present");
        assertEquals("The operation completed successfully.", msgs[0]);
        assertEquals("Incorrect function.", msgs[1]);
        assertEquals("Incorrect function.", msgs[2]);
    }

    @Test
    @DisplayName("Messages: accessing invalid index throws ArrayIndexOutOfBoundsException")
    void messagesOutOfBoundsThrows() {
        // Arrange

### Outras funções de utilidade

Qualquer outra função de utilidade que você chame diretamente pode ser criada com `def` normal ou `async def` e o FastAPI não irá afetar o modo como você a chama.

Isso está em contraste às funções que o FastAPI chama para você: *funções de operação de rota* e dependências.

public class MapComputeIfAbsentTester<K, V> extends AbstractMapTester<K, V> {

  @MapFeature.Require(SUPPORTS_PUT)
  public void testComputeIfAbsent_supportedAbsent() {
    assertEquals(
        "computeIfAbsent(notPresent, function) should return new value",
        v3(),
        getMap()
            .computeIfAbsent(
                k3(),
                k -> {
                  assertEquals(k3(), k);
                  return v3();