Function _assertClip

test/jasmine/tests/scatter_test.js:2007–2013

(sel, exp, size, msg)

        });

        function _assertClip(sel, exp, size, msg) {
            if(exp === null) {
                expect(sel.size()).toBe(0, msg + 'selection should not exist');
            } else {
                assertClip(sel, exp, size, msg);
            }
        }

        function _assert(layerClips, nodeDisplays, errorBarClips, lineClips) {
            var subplotLayer = d3Select('.overplot').select('.xy');