39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
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export default {
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toHaveSpriteIcon: (element, iconName) => {
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if (!iconName) {
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throw new Error('toHaveSpriteIcon is missing iconName argument!');
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}
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if (!(element instanceof HTMLElement)) {
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throw new Error(`${element} is not a DOM element!`);
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}
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const iconReferences = [].slice.apply(element.querySelectorAll('svg use'));
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const matchingIcon = iconReferences.find(reference =>
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reference.getAttribute('xlink:href').endsWith(`#${iconName}`),
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);
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const pass = Boolean(matchingIcon);
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let message;
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if (pass) {
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message = `${element.outerHTML} contains the sprite icon "${iconName}"!`;
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} else {
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message = `${element.outerHTML} does not contain the sprite icon "${iconName}"!`;
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const existingIcons = iconReferences.map(reference => {
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const iconUrl = reference.getAttribute('xlink:href');
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return `"${iconUrl.replace(/^.+#/, '')}"`;
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});
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if (existingIcons.length > 0) {
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message += ` (only found ${existingIcons.join(',')})`;
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}
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}
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return {
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pass,
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message: () => message,
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};
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},
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};
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