@Mock
    private SamrPolicyHandle policyHandle;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    /**
     * Test method for
     * {@link jcifs.dcerpc.msrpc.MsrpcSamrConnect4#MsrpcSamrConnect4(java.lang.String, int, jcifs.dcerpc.msrpc.SamrPolicyHandle)}.
     */
    @Test
    void testMsrpcSamrConnect4() {
        // Given

  }

  /**
   * Returns {@link Method} instances for the read tests that assume multisets support duplicates so
   * that the test of {@code Multisets.forSet()} can suppress them.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static List<Method> getCountDuplicateInitializingMethods() {
    return asList(getMethod(MultisetCountTester.class, "testCount_3"));

        Mockito.verifyNoMoreInteractions(mock);
    }

    // --- Invalid/null usage: calling a method on null should throw NPE ---
    @Test
    void nullReference_throwsNullPointerException() {
        // Arrange
        SmbBasicFileInfo info = null;

        // Act & Assert: attempting to call any method on null should throw NPE
        Assertions.assertThrows(NullPointerException.class, () -> {

    //                                                                      ==============

    /**
     * Main SSO authentication endpoint.
     *
     * This method handles the primary SSO authentication flow. It checks if a user
     * is already logged in, attempts SSO authentication, and handles various
     * authentication scenarios including success, failure, and challenge responses.

class AddressTest extends BaseTest {

    @Mock
    private CIFSContext mockContext;

    @Mock
    private Address mockAddress;

    @Test
    @DisplayName("Address interface should define correct method signatures")
    void testInterfaceContract() {
        // Given
        Address address = mockAddress;

        // When & Then - verify interface methods exist and can be called
        assertDoesNotThrow(() -> {

        // Initially not received
        Method isReceivedMethod = ServerMessageBlock2Response.class.getDeclaredMethod("isReceived");
        isReceivedMethod.setAccessible(true);
        assertFalse((boolean) isReceivedMethod.invoke(response));

        // Test reset method
        response.reset();
        assertFalse((boolean) isReceivedMethod.invoke(response));
    }

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;

import java.lang.annotation.Target;

/**
 * Disables Animal Sniffer's checking of compatibility with older versions of Java/Android.
 *
 * <p>Each package's copy of this annotation needs to be listed in our {@code pom.xml}.
 */
@Target({METHOD, CONSTRUCTOR, TYPE, FIELD})

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;

import java.lang.annotation.Target;

/**
 * Disables Animal Sniffer's checking of compatibility with older versions of Java/Android.
 *
 * <p>Each package's copy of this annotation needs to be listed in our {@code pom.xml}.
 */
@Target({METHOD, CONSTRUCTOR, TYPE, FIELD})

 *
 * @author Mike Bostock
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible
public final class Functions {
  private Functions() {}

  /**
   * A function equivalent to the method reference {@code Object::toString}. The function simply
   * invokes {@code toString} on its argument and returns the result. It throws a {@link
   * NullPointerException} on null input.
   *

- ✅ Null input stream validation

---

### 4. AbstractExtractorTest.java
**Purpose**: Test the base AbstractExtractor functionality.

**Key Test Areas**:
- `validateInputStream()` method behavior
- Exception types and messages
- Stream consumption (should not consume)
- Consistency across multiple calls

**Test Count**: 11 tests

**Key Scenarios**:
- ✅ Validates non-null streams