Function check

test/jasmine/tests/pie_test.js:876–884

(msg, restyleObj, exp)

        }

        function check(msg, restyleObj, exp) {
            return function() {
                return Plotly.restyle(gd, restyleObj).then(function() {
                    var gs = Lib.extendDeep({}, gd._fullLayout._size);
                    assertSize(msg, gs, exp);
                    previousSize = gs;
                });
            };
        }

        Plotly.newPlot(gd, data, layout)
        .then(function() {