Regarding your question, here is how I would go about it:
When using componentDidUpdate, I imagine it might happen because of a browser event, like an user clicking a button or focusing on an input.
At a component level, this might look like a method being triggered after being rendered.
This is what the code looks like:
describe('Test click button simulation',()=>{it('should update the count by 1 when invoked by default',()=>{constwrapper=shallow(<Home/>);expect(wrapper.state('counter')).toBe(0);wrapper.find('button').simulate('click');expect(wrapper.state('counter')).toBe(1);});
Note that I'm component's state for this example, but you might use props if required. Here is a link with more examples.
Cheers.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Hi Jaime,
Great post! My team is trying to write tests for the componentDidUpdate() method in our HOC, but we're getting stuck. Do you have any recommendations?
Thanks,
Wai
Hi, Wai. I'm glad to help.
Regarding your question, here is how I would go about it:
When using
componentDidUpdate, I imagine it might happen because of a browser event, like an user clicking a button or focusing on an input.At a component level, this might look like a method being triggered after being rendered.
This is what the code looks like:
Note that I'm component's state for this example, but you might use props if required. Here is a link with more examples.
Cheers.