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reactjsreact-testing-libraryreact-test-renderer
Phan Hoàng Nhân
Phan Hoàng Nhân

Reputation: 1010

React test: after update input the props value still not change

I have this code in test 

let formatField = subject.find("input").at(0);
(formatField.props() as any).onChange({
     currentTarget: { value: "Potato" }
});

The problem is after this action when I get formatField.props().value it still undefined

Do I missing something?

I tried with 

formatField .simulate('change', { target: { value: 'Potato' } });

and also 

formatField .simulate('keydown', { keyCode: 13 });

the value still not update

Thank you very much!

Upvotes: 1

Views: 169

Answers (1)

Phan Hoàng Nhân
Phan Hoàng Nhân

Reputation: 1010

I found it by my self: need to wait for it update

const waitForAsync = () => new Promise(resolve => setImmediate(resolve));
await waitForAsync();
subject.update();

also the simulate change event should like this

 formatField.simulate("change", {
        target: { value: "my value" }
      });

Upvotes: 1

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