assertEquals(21474836480L, fileFsSizeInfo.getFree()); // 20GB
        }

        @Test
        @DisplayName("Should handle large file systems")
        void shouldHandleLargeFileSystems() throws SMBProtocolDecodingException {
            // Given - 10TB file system with 4KB clusters
            long totalClusters = 2684354560L; // 10TB / 4KB
            long freeClusters = 536870912L; // 2TB / 4KB

            assertEquals(21474836480L, fileFsFullSizeInfo.getFree()); // 20GB
        }

        @Test
        @DisplayName("Should handle large file systems")
        void shouldHandleLargeFileSystems() throws SMBProtocolDecodingException {
            // Given - 10TB file system with 4KB clusters
            long totalClusters = 2684354560L; // 10TB / 4KB
            long freeClusters = 536870912L; // 2TB / 4KB