{* ../../docs_src/custom_response/tutorial006c.py hl[2,7,9] *}

### `StreamingResponse` { #streamingresponse }

Takes an async generator or a normal generator/iterator and streams the response body.

{* ../../docs_src/custom_response/tutorial007.py hl[2,14] *}

#### Using `StreamingResponse` with file-like objects { #using-streamingresponse-with-file-like-objects }

import org.mockito.junit.jupiter.MockitoExtension;

/**
 * Tests for SmbFilenameFilter interface behaviors via simple implementations.
 * Each test creates a concrete filter to validate expected contract semantics
 * including normal operation, null handling, edge cases, and exception flow.
 */
@ExtendWith(MockitoExtension.class)
class SmbFilenameFilterTest {

    @Mock
    SmbFile mockDir;

    /**

/**
 * Circuit breaker pattern implementation for SMB operations.
 * Prevents cascading failures by temporarily blocking requests to a failing service.
 *
 * The circuit breaker has three states:
 * - CLOSED: Normal operation, requests pass through
 * - OPEN: Service is failing, requests are blocked
 * - HALF_OPEN: Testing if service has recovered
 */
public class SmbCircuitBreaker {

      try {
        workOnQueue();
      } catch (Error e) {
        synchronized (queue) {
          workerRunningState = IDLE;
        }
        throw e;
        // The execution of a task has ended abnormally.
        // We could have tasks left in the queue, so should perhaps try to restart a worker,
        // but then the Error will get delayed if we are using a direct (same thread) executor.
      }
    }

    /**

    void setUp() {
        // Setup will be done in individual tests when needed
    }

    @Test
    @DisplayName("Test constructor with path initialization")
    void testConstructor() {
        // Test with normal path
        request = new Smb2CreateRequest(mockConfig, "test\\file.txt");
        assertNotNull(request);
        assertEquals("\\test\\file.txt", request.getPath());

        // Test with leading backslash

            }

            SmbFile.dfs.insert(req.path, dr);
            throw dr;
        case 0x80000005: /* STATUS_BUFFER_OVERFLOW */
            break; /* normal for DCERPC named pipes */
        case NtStatus.NT_STATUS_MORE_PROCESSING_REQUIRED:
            break; /* normal for NTLMSSP */
        default:
            throw new SmbException(resp.errorCode, null);
        }
        if (resp.verifyFailed) {

 *
 * The class under test contains a number of straightforward data‑layout
 * methods (writing parameters and handling empty wire formats) and an
 * informative {@link NtTransQuerySecurityDesc#toString()}. The tests
 * exercise normal behaviour, boundary values, and the interaction with
 * the underlying wire‑format helpers.
 */
@ExtendWith(MockitoExtension.class)
class NtTransQuerySecurityDescTest {

    /**

import org.codelibs.fess.unit.UnitFessTestCase;

public class FessUserNotFoundExceptionTest extends UnitFessTestCase {

    public void test_constructor_withValidUsername() {
        // Test with a normal username
        String username = "testuser";
        FessUserNotFoundException exception = new FessUserNotFoundException(username);

        assertNotNull(exception);

    }
  }

  private enum PlatformSpecificExceptionBatch {
    PLATFORM {
      @GwtIncompatible
      @J2ktIncompatible
      @Override
      // returns the types available in "normal" environments
      ImmutableMap<Class<? extends Throwable>, Predicate<Throwable>> exceptions() {
        return ImmutableMap.of(
            InvocationTargetException.class,

        securityResourceProvider = new FessSecurityResourceProvider(invertibleCryptographer, oneWayCryptographer);
    }

    // Test constructor
    public void test_constructor_withValidParameters() {
        // Test normal construction
        assertNotNull(securityResourceProvider);

        // Verify fields are set correctly
        InvertibleCryptographer providedInvertible = securityResourceProvider.providePrimaryInvertibleCryptographer();