2026-04-17 15:04:05 +02:00
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import { describe, it, expect } from 'vitest';
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import { readFileSync } from 'node:fs';
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import { dirname, join } from 'node:path';
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import { fileURLToPath } from 'node:url';
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2026-04-18 08:32:18 +02:00
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import {
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extractRecipeFromHtml,
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hasRecipeMarkup
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} from '../../src/lib/server/parsers/json-ld-recipe';
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2026-04-17 15:04:05 +02:00
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const here = dirname(fileURLToPath(import.meta.url));
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function load(name: string): string {
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return readFileSync(join(here, '../fixtures', name), 'utf8');
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}
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describe('extractRecipeFromHtml', () => {
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it('extracts a recipe from Chefkoch HTML', () => {
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const html = load('chefkoch-schupfnudeln.html');
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const r = extractRecipeFromHtml(html);
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expect(r).not.toBeNull();
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expect(r!.title.toLowerCase()).toContain('schupfnudel');
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expect(r!.ingredients.length).toBeGreaterThan(2);
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expect(r!.steps.length).toBeGreaterThan(0);
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});
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it('extracts a recipe from Emmi kocht einfach HTML', () => {
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const html = load('emmi-bolognese.html');
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const r = extractRecipeFromHtml(html);
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expect(r).not.toBeNull();
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expect(r!.title.toLowerCase()).toContain('bolognese');
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expect(r!.ingredients.length).toBeGreaterThan(0);
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expect(r!.steps.length).toBeGreaterThan(0);
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});
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it('returns null when no Recipe JSON-LD present', () => {
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const html = '<html><body><p>no recipe</p></body></html>';
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expect(extractRecipeFromHtml(html)).toBeNull();
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});
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it('returns null when JSON-LD has only non-Recipe types', () => {
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const html = `
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<html><head>
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<script type="application/ld+json">{"@context":"https://schema.org","@type":"Organization","name":"Foo"}</script>
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</head></html>`;
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expect(extractRecipeFromHtml(html)).toBeNull();
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});
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});
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2026-04-18 08:32:18 +02:00
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describe('hasRecipeMarkup', () => {
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it('detects JSON-LD Recipe', () => {
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const html = `<html><head>
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<script type="application/ld+json">{"@type":"Recipe","name":"x"}</script>
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</head></html>`;
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expect(hasRecipeMarkup(html)).toBe(true);
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});
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it('detects schema.org/Recipe microdata', () => {
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const html = `<html><body>
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<div itemscope itemtype="https://schema.org/Recipe">
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<span itemprop="name">Königsberger Klopse</span>
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</div>
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</body></html>`;
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expect(hasRecipeMarkup(html)).toBe(true);
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});
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it('also detects http:// variant of schema.org/Recipe', () => {
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const html = `<div itemscope itemtype="http://schema.org/Recipe"></div>`;
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expect(hasRecipeMarkup(html)).toBe(true);
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});
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it('returns false for pages without any recipe markup', () => {
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const html = '<html><body><p>nothing here</p></body></html>';
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expect(hasRecipeMarkup(html)).toBe(false);
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});
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});
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