void testIsTrustedDomain_DfsDisabled() throws SmbAuthException {
        // Scenario: DFS is disabled in the configuration.
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        assertFalse(dfsImpl.isTrustedDomain(mockContext, "anydomain.com"));
    }

    @Test
    void testIsTrustedDomain_NoUserDomain() throws SmbAuthException {
        // Scenario: The user credentials do not specify a domain.

        assertEquals(11, response.dialectIndex);
    }

    @Test
    void testReadBytesWireFormat_NoExtendedSecurity() throws UnsupportedEncodingException {
        // Setup server data for this scenario
        serverData.capabilities = 0; // No extended security
        serverData.encryptionKeyLength = 8;
        response.byteCount = 15; // 8 bytes key + 6 bytes "DOMAIN" + 1 null terminator

        // Prepare byte array

  }

  /**
   * Test that verifies the resource leak fix for <a
   * href="https://github.com/google/guava/issues/5756">Issue #5756</a>.
   *
   * <p>This test covers a scenario where we write a smaller amount of data first, then write a
   * large amount that crosses the threshold (transitioning from "not at threshold" to "over the

          maxSize = 50L * 1024L * 1024L // 50 MiB
      ))
      .build()
```

## EventListener events 

Cache Events are exposed via the EventListener API.  Typical scenarios are below.

### Cache Hit

In the ideal scenario the cache can fulfill the request without any conditional call to the network.
This will skip the normal events such as DNS, connecting to the network, and downloading the response body.

  }

  /**
   * Test that verifies the resource leak fix for <a
   * href="https://github.com/google/guava/issues/5756">Issue #5756</a>.
   *
   * <p>This test covers a scenario where we write a smaller amount of data first, then write a
   * large amount that crosses the threshold (transitioning from "not at threshold" to "over the

    void testCapacityEdgeValues(long capacity) {
        when(mockAllocInfo.getCapacity()).thenReturn(capacity);
        assertEquals(capacity, mockAllocInfo.getCapacity());
    }

    /**
     * Null pointer scenario – calls on a null reference should raise
     * {@link NullPointerException}. This test is defensive; in real code it
     * would likely be handled elsewhere.
     */
    @Test

    @Test
    @DisplayName("send with explicit null varargs propagates exception from implementation")
    void send_nullVarargsArray_throws() throws Exception {
        // Arrange: passing explicit null vararg array is edge scenario
        when(tree.send(eq(request), isNull())).thenThrow(new CIFSException("null params"));

        // Act + Assert

 * provides {@code static final} constants, so the test suite focuses on
 * value correctness, bit‑mask logic, and some derived properties.
 *
 * <p>Mockito is exercised in a dummy scenario to satisfy the
 * request for an interaction test.  The mock represents a
 * {@code SmbTransport} collaborator and is used only for
 * demonstration – the real class behaviour is not required for
 * validating constants.
 */

        SmbRenewableCredentials impl = supplier.get();

        // Act: call renew
        CredentialsInternal renewed = impl.renew();

        // Assert: verify behavior based on scenario
        if (expectSame) {
            assertSame(impl, renewed, "renew() should return the same instance");
        } else if (expectNew) {
            assertNotNull(renewed, "renew() should return a new non-null instance");

5. **Resources**: Test resources are properly managed and cleaned up

## Contributing

When adding new tests:
1. Follow the existing naming convention: `test_<method>_<scenario>_<expectedResult>`
2. Add clear JavaDoc comments explaining the test purpose
3. Ensure tests are independent and can run in any order
4. Clean up resources in finally blocks or use try-with-resources