assertNotNull(request);
    }

    @Test
    @DisplayName("Constructor should handle null filename")
    void testConstructorWithNullFilename() {
        // When & Then
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, null));
    }

    @Test
    @DisplayName("Constructor should handle empty filename")

            assertEquals(testFileName, closeResponse.getFileName());
        }

        @Test
        @DisplayName("Constructor should accept null fileName")
        void testConstructorWithNullFileName() {
            // When
            Smb2CloseResponse closeResponse = new Smb2CloseResponse(mockConfig, testFileId, null);

            // Then
            assertNotNull(closeResponse);

Shinsuke Sugaya <******@****.***> 1755149504 +0900

        assertNotNull(requestWithNull);
    }

    @Test
    @DisplayName("Constructor with null fileName should accept null")
    void testConstructorWithNullFileName() throws Exception {
        Smb2CloseRequest requestWithNull = new Smb2CloseRequest(mockConfig, testFileId, null);
        assertNotNull(requestWithNull);

Shinsuke Sugaya <******@****.***> 1755149504 +0900

Shinsuke Sugaya <******@****.***> 1755149504 +0900

Shinsuke Sugaya <******@****.***> 1756533483 +0900

Shinsuke Sugaya <******@****.***> 1774084272 +0900

Shinsuke Sugaya <******@****.***> 1755149504 +0900

Shinsuke Sugaya <******@****.***> 1755149504 +0900