Function trigger

test/jasmine/tests/parcoords_test.js:1338–1342

(name)

        var cnt = 0;

        function trigger(name) {
            var ev = new window.WebGLContextEvent('webglcontextlost');
            var canvas = gd.querySelector('.gl-canvas-' + name);
            canvas.dispatchEvent(ev);
        }

        function _assert(d, c) {
            expect((eventData || {}).event).toBeDefined();