// Act
        byte[] r14 = NtlmUtil.getPreNTLMResponse(cifsContext, password14, challenge);
        byte[] r15 = NtlmUtil.getPreNTLMResponse(cifsContext, password15, challenge);

        // Assert: equal because only first 14 OEM bytes are used
        assertArrayEquals(r14, r15, "Only first 14 OEM bytes affect Pre-NTLM response");
        assertEquals(24, r14.length);

        // Verify collaborator interactions