Files
PinchChat/src/lib/__tests__/highlight.test.ts

65 lines
2.1 KiB
TypeScript

import { describe, it, expect } from 'vitest';
import hljs, { rehypeHighlightLanguages, rehypeHighlightOptions } from '../highlight';
describe('highlight', () => {
const expectedLanguages = [
'bash', 'css', 'diff', 'dockerfile', 'go', 'ini',
'javascript', 'json', 'markdown', 'python', 'rust',
'shell', 'sql', 'typescript', 'xml', 'yaml',
];
describe('hljs instance', () => {
it('has all expected languages registered', () => {
const registered = hljs.listLanguages();
for (const lang of expectedLanguages) {
expect(registered).toContain(lang);
}
});
it('resolves common aliases', () => {
const aliases = ['sh', 'zsh', 'js', 'jsx', 'ts', 'tsx', 'py', 'html', 'yml', 'rs'];
for (const alias of aliases) {
const lang = hljs.getLanguage(alias);
expect(lang, `alias "${alias}" should resolve`).toBeDefined();
}
});
it('highlights JavaScript code', () => {
const result = hljs.highlight('const x = 42;', { language: 'javascript' });
expect(result.value).toContain('hljs-');
expect(result.language).toBe('javascript');
});
it('highlights Python code', () => {
const result = hljs.highlight('def hello():\n pass', { language: 'python' });
expect(result.value).toContain('hljs-');
});
it('auto-detects language', () => {
const result = hljs.highlightAuto('{"key": "value"}');
expect(result.language).toBe('json');
});
});
describe('rehypeHighlightLanguages', () => {
it('exports all expected languages as functions', () => {
for (const lang of expectedLanguages) {
expect(typeof rehypeHighlightLanguages[lang]).toBe('function');
}
});
});
describe('rehypeHighlightOptions', () => {
it('has languages and aliases', () => {
expect(rehypeHighlightOptions.languages).toBeDefined();
expect(rehypeHighlightOptions.aliases).toBeDefined();
});
it('aliases map to valid language names', () => {
for (const [lang] of Object.entries(rehypeHighlightOptions.aliases)) {
expect(expectedLanguages).toContain(lang);
}
});
});
});