56 lines
1.5 KiB
TypeScript
56 lines
1.5 KiB
TypeScript
/**
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* External dependencies
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*/
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import type { MatcherFunction } from '@testing-library/react';
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/**
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* This function will match text over several elements, the standard matcher
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* will only find strings if they are within the same element.
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*/
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export const textContentMatcher = ( text: string ): MatcherFunction => {
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return ( _content, node ) => {
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const hasText = ( _node ) => _node.textContent === text;
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const nodeHasText = hasText( node );
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const childrenDontHaveText = Array.from( node?.children || [] ).every(
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( child ) => ! hasText( child )
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);
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return nodeHasText && childrenDontHaveText;
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};
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};
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/**
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* This will check if the text is present an the container, it can be within
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* multiple elements, for example:
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* <div>
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* <span>Text</span>
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* <span>is</span>
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* <span>present</span>
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* </div>
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*/
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export const textContentMatcherAcrossSiblings = (
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text: string
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): MatcherFunction => {
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return ( _content, node ): boolean => {
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/*
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If the element in question is not the first child, then skip, as we
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will have already run this check for its siblings (when we ran it on the
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first child).
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*/
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const siblings =
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node?.parentElement?.children[ 0 ] === node
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? node?.parentElement?.children
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: [];
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let siblingText = '';
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// Get the text of all siblings and put it into a single string.
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if ( siblings?.length > 0 ) {
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siblingText = Array.from( siblings )
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.map( ( child ) => child.textContent )
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.filter( Boolean )
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.join( ' ' )
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.trim();
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}
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return siblingText !== '' && siblingText === text;
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};
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};
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