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51 lines
1.4 KiB
51 lines
1.4 KiB
export function deepEqual(a, b, message) {
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if (!is_equal(a, b)) {
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throw new Error(message || `Expected ${JSON.stringify(a)} to equal ${JSON.stringify(b)}`);
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}
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}
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function is_equal(a, b) {
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if (a && typeof a === 'object') {
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const is_array = Array.isArray(a);
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if (Array.isArray(b) !== is_array) return false;
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if (is_array) {
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if (a.length !== b.length) return false;
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return a.every((value, i) => is_equal(value, b[i]));
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}
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const a_keys = Object.keys(a).sort();
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const b_keys = Object.keys(b).sort();
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if (a_keys.join(',') !== b_keys.join(',')) return false;
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return a_keys.every((key) => is_equal(a[key], b[key]));
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}
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return a === b;
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}
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export function equal(a, b, message) {
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if (a != b) throw new Error(message || `Expected ${a} to equal ${b}`);
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}
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export function ok(condition, message) {
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if (!condition) throw new Error(message || `Expected ${condition} to be truthy`);
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}
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export function htmlEqual(actual, expected, message) {
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return deepEqual(normalizeHtml(window, actual), normalizeHtml(window, expected), message);
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}
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function normalizeHtml(window, html) {
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try {
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const node = window.document.createElement('div');
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node.innerHTML = html
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.replace(/<!--.*?-->/g, '')
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.replace(/>[\s\r\n]+</g, '><')
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.trim();
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return node.innerHTML.replace(/<\/?noscript\/?>/g, '');
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} catch (err) {
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throw new Error(`Failed to normalize HTML:\n${html}`);
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}
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}
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