Paul Nothaft
76 lines
2.6 KiB
JavaScript
76 lines
2.6 KiB
JavaScript
/**
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* Unit tests for emailProcessor.htmlToText.
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*
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* Regression: when a template ships without a body_text, sendTemplateEmail
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* used `htmlBody.replace(/<[^>]*>/g, '')` to derive the plain-text fallback.
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* That regex strips angle-bracket tags but leaves the *contents* of <style>
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* and <script> blocks intact — so any HTML wrapped by wrapEmailHtml() (which
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* embeds a 100+ line <style> block) produced a "plain-text" email starting
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* with `body { margin: 0; padding: 0; … }`. htmlToText fixes that.
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*/
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jest.mock('../../src/database/db', () => ({ db: jest.fn() }));
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const { htmlToText } = require('../../src/services/emailProcessor');
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describe('htmlToText', () => {
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it('returns empty string for empty input', () => {
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expect(htmlToText('')).toBe('');
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expect(htmlToText(null)).toBe('');
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expect(htmlToText(undefined)).toBe('');
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});
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it('strips <style> blocks and their contents', () => {
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const html = '<html><head><style>body { margin: 0; color: red; }</style></head><body>Hello</body></html>';
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const out = htmlToText(html);
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expect(out).toBe('Hello');
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expect(out).not.toMatch(/margin/);
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expect(out).not.toMatch(/color/);
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});
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it('strips <script> blocks and their contents', () => {
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const html = '<body><script>alert("x")</script>Hi</body>';
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expect(htmlToText(html)).toBe('Hi');
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});
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it('converts <br> tags to newlines', () => {
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expect(htmlToText('a<br>b<br />c<BR/>d')).toBe('a\nb\nc\nd');
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});
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it('keeps a paragraph break between adjacent <p> tags', () => {
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expect(htmlToText('<p>one</p><p>two</p>')).toBe('one\n\ntwo');
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});
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it('decodes the common HTML entities', () => {
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expect(htmlToText('Tom & Jerry <3 "hi"'))
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.toBe('Tom & Jerry <3 "hi"');
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});
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it('handles a fully-wrapped email body without leaking CSS rules', () => {
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// Shape mirrors what wrapEmailHtml() produces: a <style> block with many
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// CSS rules followed by the actual content.
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const wrapped = `
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body { margin: 0; padding: 0; font-family: sans-serif; background-color: #f5f5f5; }
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.email-container { max-width: 600px; }
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.button { background-color: #5C8762; color: white !important; }
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</style>
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</head>
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<body>
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<h2>Galerie erfolgreich erstellt</h2>
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<p>Liebe(r) Natalie,</p>
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</body>
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</html>`;
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const out = htmlToText(wrapped);
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expect(out).toContain('Galerie erfolgreich erstellt');
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expect(out).toContain('Liebe(r) Natalie');
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expect(out).not.toMatch(/margin/);
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expect(out).not.toMatch(/font-family/);
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expect(out).not.toMatch(/background-color/);
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expect(out).not.toMatch(/\.button/);
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});
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});
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