javascript - Jasmine jQuery: Check if element is visible -

hello got question regarding unit testing jasmine (plugin: jquery)

how test if object within dom of document. thing use tooltip function activated when event simulated. when there simulation of effect, object attached dom , want check if visible or not.

it("test 1: should invoke tooltip() function.", function () {                                        spyevent = spyonevent('.span_width', "mouseover");                           $('.span_width').simulate('mouseover');                                   expect('mouseover').tohavebeentriggeredon('.span_width');         expect(spyevent).tohavebeentriggered();                                       # test check if .tooltip visible???         # in jquery be: $('.tooltip').is(':visible');                                                             }); 

you commented in jquery be: $('.tooltip').is(':visible');

yes would. in jasmine unit testing, passes test, you're expecting above true:

expect($('.tooltip').is(':visible')).tobe(true); // passes expect($('.tooltip').is(':visible')).tobe(false); // fails