snapshot of https://github.com/RocketChat/Rocket.Chat.git (develop, 2026-09-16; blobs > 131072B omitted)

apps/meteor/tests/unit/app/markdown/hljs.tests.ts

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+import { expect } from 'chai';
+
+import hljs, { register } from '../../../../app/markdown/lib/hljs';
+
+const lazyLanguages: string[] = [
+	'onec',
+	'abnf',
+	'accesslog',
+	'actionscript',
+	'ada',
+	'apache',
+	'applescript',
+	'arduino',
+	'armasm',
+	'asciidoc',
+	'aspectj',
+	'autohotkey',
+	'autoit',
+	'avrasm',
+	'awk',
+	'axapta',
+	'bash',
+	'basic',
+	'bnf',
+	'brainfuck',
+	'cal',
+	'capnproto',
+	'ceylon',
+	'clean',
+	'clojure',
+	'clojure-repl',
+	'cmake',
+	'coffeescript',
+	'coq',
+	'cos',
+	'cpp',
+	'crmsh',
+	'crystal',
+	'csp',
+	'css',
+	'd',
+	'dart',
+	'delphi',
+	'diff',
+	'django',
+	'dns',
+	'dockerfile',
+	'dos',
+	'dsconfig',
+	'dts',
+	'dust',
+	'ebnf',
+	'elixir',
+	'elm',
+	'erb',
+	'erlang',
+	'excel',
+	'fix',
+	'flix',
+	'fortran',
+	'fsharp',
+	'gams',
+	'gauss',
+	'gcode',
+	'gherkin',
+	'glsl',
+	'go',
+	'golo',
+	'gradle',
+	'groovy',
+	'haml',
+	'handlebars',
+	'haskell',
+	'haxe',
+	'hsp',
+	'http',
+	'hy',
+	'inform7',
+	'ini',
+	'irpf90',
+	'java',
+	'javascript',
+	'jboss-cli',
+	'json',
+	'julia',
+	'julia-repl',
+	'kotlin',
+	'lasso',
+	'ldif',
+	'leaf',
+	'less',
+	'lisp',
+	'livecodeserver',
+	'livescript',
+	'llvm',
+	'lsl',
+	'lua',
+	'makefile',
+	'markdown',
+	'mathematica',
+	'matlab',
+	'maxima',
+	'mel',
+	'mercury',
+	'mipsasm',
+	'mizar',
+	'perl',
+	'mojolicious',
+	'monkey',
+	'moonscript',
+	'n1ql',
+	'nginx',
+	'nix',
+	'nsis',
+	'objectivec',
+	'ocaml',
+	'openscad',
+	'oxygene',
+	'parser3',
+	'pf',
+	'php',
+	'pony',
+	'powershell',
+	'processing',
+	'profile',
+	'prolog',
+	'protobuf',
+	'puppet',
+	'purebasic',
+	'python',
+	'q',
+	'qml',
+	'r',
+	'rib',
+	'roboconf',
+	'rsl',
+	'ruleslanguage',
+	'rust',
+	'scala',
+	'scheme',
+	'scilab',
+	'scss',
+	'shell',
+	'smali',
+	'smalltalk',
+	'sml',
+	'sqf',
+	'sql',
+	'stan',
+	'stata',
+	'step21',
+	'stylus',
+	'subunit',
+	'swift',
+	'taggerscript',
+	'yaml',
+	'tap',
+	'tcl',
+	'thrift',
+	'tp',
+	'twig',
+	'typescript',
+	'vala',
+	'vbnet',
+	'vbscript',
+	'verilog',
+	'vhdl',
+	'vim',
+	'x86asm',
+	'xl',
+	'xquery',
+	'zephir',
+];
+
+const eagerLanguages = ['markdown', 'clean', 'javascript'];
+
+describe('hljs', () => {
+	describe('eagerly registered languages', () => {
+		eagerLanguages.forEach((lang) => {
+			it(`should register '${lang}' when the module is loaded`, () => {
+				expect(hljs.getLanguage(lang)).to.be.an('object');
+			});
+		});
+	});
+
+	describe('register', () => {
+		afterEach(() => {
+			hljs
+				.listLanguages()
+				.filter((lang) => !eagerLanguages.includes(lang))
+				.forEach((lang) => hljs.unregisterLanguage(lang));
+		});
+
+		lazyLanguages.forEach((lang) => {
+			it(`should register a syntax definition for '${lang}'`, async () => {
+				hljs.unregisterLanguage(lang);
+
+				await register(lang);
+
+				expect(hljs.listLanguages()).to.include(lang);
+			});
+		});
+
+		['', 'not-a-language'].forEach((lang) => {
+			it(`should fall back to plaintext for '${lang}'`, async () => {
+				await register(lang);
+
+				expect(hljs.listLanguages()).to.include('plaintext');
+			});
+		});
+	});
+});