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