How cand I unit test componentWillReceiveProps(nextProps) with jest?
componentWillReceiveProps(nextProps) {
if (nextProps.data === undefined ||
nextProps.data.hasOwnProperty('error') ||
nextProps.err !== undefined) {
this.setState({
messageError: "Something went wrong!"
});
} else if ((nextProps.data).length) {
this.setState({
dataArray: nextProps.data
});
}
}
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