Function _assertZoombox

test/jasmine/tests/cartesian_interact_test.js:1698–1707

(msg, exp)

    describe('redrag behavior', function() {
        function _assertZoombox(msg, exp) {
            var gd3 = d3Select(gd);
            var zb = gd3.select('g.zoomlayer').select('.zoombox-corners');

            if(zb.size()) {
                expect(zb.attr('d')).toBe(exp.zoombox, msg + '| zoombox path');
            } else {
                expect(false).toBe(exp.zoombox, msg + '| no zoombox');
            }
        }

        function _assertClipRect(msg, exp) {
            var gd3 = d3Select(gd);