Function clickAt

test/jasmine/tests/legend_test.js:2042–2052

(p)

        // we need to click on the drag cover to truly test this,
        function clickAt(p) {
            return function () {
                return new Promise(function (resolve) {
                    var el = d3Select('g.legend').node();
                    var opts = { element: el };
                    mouseEvent('mousedown', p[0], p[1], opts);
                    mouseEvent('mouseup', p[0], p[1], opts);
                    setTimeout(resolve, DBLCLICKDELAY + 20);
                });
            };
        }

        function assertVisible(expectation) {
            return function () {