}

    abstract boolean isPermitted(Exception exception);

    void assertPermitted(Exception exception) {
      if (!isPermitted(exception)) {
        String message =
            "Exception "
                + exception.getClass().getSimpleName()
                + " was thrown; expected "
                + getMessage();
        throw new AssertionError(message, exception);
      }
    }

{* ../../docs_src/handling_errors/tutorial002_py310.py hl[14] *}

## Özel Exception Handler’ları Kurmak { #install-custom-exception-handlers }

[Starlette’in aynı exception yardımcı araçlarıyla](https://www.starlette.dev/exceptions/) özel exception handler’lar ekleyebilirsiniz.

    @Test
    public void test_getIndex() throws Exception {
        Suggester suggester = createSuggester();

        // The index name should be {id}.suggest
        assertEquals("Should return correct index name", getIndexName(), suggester.getIndex());
    }

    @Test
    public void test_getAllWordsNum_onEmptyIndex() throws Exception {
        Suggester suggester = createSuggester();

        logger.info("info");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testWarn() throws Exception {
        logger.warn("warn");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testError() throws Exception {
        logger.error("error");
    }

    /**
     * @throws Exception
     */
    @Test

        }

        @Test
        @DisplayName("Should handle exception")
        void testException() {
            Exception testException = new Exception("Test exception");

            assertFalse(echoResponse.isError());
            assertFalse(echoResponse.isReceived());
            assertNull(echoResponse.getException());

            echoResponse.exception(testException);

            assertTrue(echoResponse.isError());

@GwtIncompatible
@J2ktIncompatible
public class ExecutionSequencerTest extends TestCase {

  ExecutorService executor;

  private ExecutionSequencer serializer;
  private SettableFuture<@Nullable Void> firstFuture;
  private TestCallable firstCallable;

  @Override
  public void setUp() throws Exception {
    executor = newCachedThreadPool();
    serializer = ExecutionSequencer.create();
    firstFuture = SettableFuture.create();

        assertSame(session, result);
        verify(transport).getSmbSession(eq(ctx), eq(host), eq(domain));
    }

    // SMB2 detection: true/false and exception path
    @Test
    @DisplayName("isSMB2 returns true/false and can throw")
    void isSMB2_variants() throws Exception {
        when(transport.isSMB2()).thenReturn(true, false);
        assertTrue(transport.isSMB2());
        assertFalse(transport.isSMB2());

    Exception exception = new RuntimeException("test");
    UncheckedExecutionException e =
        assertThrows(
            UncheckedExecutionException.class,
            () -> timeLimiter.callWithTimeout(callableThrowing(exception), DELAY_MS, MILLISECONDS));
    assertThat(e).hasCauseThat().isEqualTo(exception);
  }

  public void testCallUninterruptiblyWithTimeout_propagatesReturnValue() throws Exception {
    String result =

  }

  public void testSuccessful() throws Exception {
    assertThat(future.set(1)).isTrue();
    assertSuccessful(future, 1);
  }

  public void testFailed() throws Exception {
    Exception cause = new Exception();
    assertThat(future.setException(cause)).isTrue();
    assertFailed(future, cause);
  }

  public void testCanceled() throws Exception {

    /**
     * @throws Exception
     */
    @After
    public void tearDown() throws Exception {
        map = null;
    }

    /**
     * @throws Exception
     */
    @Test
    public void testSize() throws Exception {
        assertThat(map.size(), equalTo(3));
        map.put("3", "test3");
        assertThat(map.size(), equalTo(4));
    }

    /**
     * @throws Exception
     */
    @Test