            expect: {matrixXYLocatorRange: [[1, 1], [NaN, NaN]]},
                            }, {
                                input: [null, 0],
                                expect: {matrixXYLocatorRange: [[NaN, NaN], [NaN, NaN]]},
                            }, {
                                input: [null, null],
                                opt: {clamp: MatrixClampOption.body},
                                expect: {matrixXYLocatorRange: [[0, 3], [NaN, NaN]]},
                            }]
