javascript - How do I check if element exists with Mocha Chai Sinon? - Stack Overflow

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I would like to know how can I check if an element on the UI exists by id or class. I'm using teaspoon-mocha, Sinon, and chai.

I tried next but it doesn't work:

expect($('my-id')).to.be.true;

I would like to know how can I check if an element on the UI exists by id or class. I'm using teaspoon-mocha, Sinon, and chai.

I tried next but it doesn't work:

expect($('my-id')).to.be.true;

• javascript
• mocha.js
• chai
• sinon-chai
• teaspoon

Share Improve this question Follow edited Jun 18, 2018 at 11:47 Ahmed Ashour 5,6111010 gold badges3939 silver badges6262 bronze badges asked Jun 18, 2018 at 11:45 JakubJakub 2,73988 gold badges4545 silver badges104104 bronze badges

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1 Answer 1

Sorted by: Reset to default 5

It would be nice to have slightly more context, but generally speaking with jQuery you should check the length of array returned. And if you use an id the '#' sign must be there. Another thing is that the .true assertion in chai uses a strict === parison (http://www.chaijs./api/bdd/#method_true). So, either

expect($('#my-id').length === 1).to.be.true;

or

expect($('#my-id').length).to.be.ok;

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