}

    @Test
    @DisplayName("Constructor with null file ID should accept null")
    void testConstructorWithNullFileId() {
        // Should not throw exception
        Smb2CloseRequest requestWithNull = new Smb2CloseRequest(mockConfig, null, testFileName);
        assertNotNull(requestWithNull);
    }

    @Test
    @DisplayName("Constructor with null fileName should accept null")

        }
    }

    @Test
    @DisplayName("Constructor with andx sets next command")
    void testConstructorWithAndx() {
        DummyPlainSMB next = new DummyPlainSMB();
        DummyAndXBlock block = new DummyAndXBlock(next);

        assertNotNull(block);
        assertSame(next, block.andx, "andx should reference provided SMB");
    }

    @Test
    @DisplayName("getBatchLimit defaults to 0")

        return TestUtils.createMockContext(options);
    }

    @Nested
    @DisplayName("Applicability")
    class ApplicabilityTests {

        @ParameterizedTest
        @MethodSource("provideApplicabilityScenarios")
        @DisplayName("should determine applicability based on options")
        void shouldDetermineApplicabilityBasedOnOptions(

    }

    @Test
    @DisplayName("Test constructor creates instance with empty notification list")
    void testConstructor() {
        assertNotNull(response);
        assertNotNull(response.getNotifyInformation());
        assertTrue(response.getNotifyInformation().isEmpty());
    }

    @Test
    @DisplayName("Test writeSetupWireFormat returns 0")
    void testWriteSetupWireFormat() {

        assertDoesNotThrow(managed::close);
    }

    @Test
    @DisplayName("Test null resource registration throws exception")
    void testNullResourceRegistration() {
        assertThrows(IllegalArgumentException.class, () -> resourceManager.registerResource(null));
    }

    @Test
    @DisplayName("Test configuration updates")
    void testConfigurationUpdates() {

        });
    }

    @Test
    @DisplayName("Should correctly inherit from ServerMessageBlock2Request")
    void testInheritance() {
        // Then
        assertTrue(request instanceof ServerMessageBlock2Request);
        assertTrue(request instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Should maintain immutability of structure size")

        }
    }

    @Test
    @DisplayName("getDefaultPort returns SMB default port 445")
    void testGetDefaultPort() {
        // Act
        int port = handler.getDefaultPort();

        // Assert
        assertEquals(445, port);
        assertEquals(SmbConstants.DEFAULT_PORT, port);
    }

    @Test
    @DisplayName("openConnection creates SmbFile for valid URL")

import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

import java.lang.reflect.Method;
import java.util.Arrays;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

    @Nested
    class InvalidConstruction {
        @Test
        @DisplayName("Negative maxBuffers throws immediately in constructor")
        void negativeMaxBuffersThrows() {
            assertThrows(NegativeArraySizeException.class, () -> new BufferCacheImpl(-1, 10));
        }

        @Test
        @DisplayName("Negative maxSize throws when allocating a new buffer")

        assertEquals("remove", ex.getMessage());
    }

    @Nested
    @DisplayName("Invalid constructor inputs")
    class InvalidInputs {
        @Test
        @DisplayName("Null delegate causes NullPointerException during construction")
        void nullDelegate_throwsNPE() throws Exception {
            SmbFile parent = newParent();