                                                           ]
         )
         
-        // All values should match the input using subscripting
         XCTAssertEqual(matrix[.INTERIOR, .INTERIOR], Dimension.EMPTY)
         XCTAssertEqual(matrix[.INTERIOR, .BOUNDARY], Dimension.ZERO)
         XCTAssertEqual(matrix[.INTERIOR, .EXTERIOR], Dimension.ONE)

                                                          [.ZERO, .EMPTY, .EMPTY],
                                                          ]
        )
        // All elements should match input
        XCTAssertFalse(matrix.matches(pattern: "TFF012TF1"))
    }
    

                                                          [.ZERO, .EMPTY, .EMPTY],
                                                          ]
        )
        XCTAssertEqual(matrix.description, "2, -1, 1, 0, 1, 2, 0, -1, -1")
    }
    
