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jamie
jamie

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Mocha Chai unit test for React state variable change

I want to write a Mocha unit test for the react state variable changes. For example,


import React, { useState, useEffect, useMemo } from 'react';



const RefillComponent = () => {



const [refillResult, setRefillResult] = useState({

status: 'notStarted',

successfulIds: [],

failedIds: [],

});



const onRequestRefills = async () => {

const response = await MyAPICall(list);

const failedIds = response?.failedIds || [];

const successfulIds = response?.successfulIds || [];

setRefillResult({

status: failedIds.length > 0 ? 'failed' : 'success',

failedIds,

successfulIds,

});

}

};



const failedNotification = () => {

return (

<div>API request failed</div>

);

};

return (

<div>

{(refillResult.status === 'failed') && failedNotification()}

</div>

);



};





export default RefillComponent;
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I want to write the unit test when refillResult.status === 'failed' the text API request failed should be displayed.

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