Rewrite tests to es6 modules

.eslintrc.yml

@@ -1,7 +1,11 @@
 env:
   node:     true
-  browser:  false
-  es6:      false
+
+overrides:
+  -
+    files: [ '*.mjs' ]
+    parserOptions:
+      sourceType: module
 
 ignorePatterns:
   - coverage/

package.json

@@ -16,7 +16,7 @@
     "markdown-it": "bin/markdown-it.js"
   },
   "scripts": {
-    "lint": "eslint .",
+    "lint": "eslint --ext js --ext mjs .",
     "test": "npm run lint && nyc mocha && node support/specsplit.js",
     "coverage": "npm run test && nyc report --reporter html",
     "report-coveralls": "nyc --reporter=lcov mocha",
@@ -56,7 +56,7 @@
     "express": "^4.14.0",
     "gh-pages": "^3.1.0",
     "highlight.js": "^10.7.2",
-    "jest-worker": "^26.6.2",
+    "jest-worker": "^29.7.0",
     "markdown-it-abbr": "^1.0.4",
     "markdown-it-container": "^3.0.0",
     "markdown-it-deflist": "^2.0.0",

test/.eslintrc.yml

@@ -1,7 +1,6 @@
 env:
-  node:  true
   mocha: true
   es6:   true
 
 parserOptions:
-  ecmaVersion: 2017
+  ecmaVersion: 2020

test/babelmark-responder.js → test/babelmark-responder.mjs

@@ -1,22 +1,24 @@
-'use strict';
+import supertest from 'supertest';
+import { execFile } from 'child_process';
+import { readFileSync } from 'fs';
 
 
 describe('babelmark responder app', function () {
   var app;
 
   var PORT    = 5005;
-  var request = require('supertest')('http://127.0.0.1:' + PORT);
+  var request = supertest('http://127.0.0.1:' + PORT);
 
   function timeout(ms) {
     return new Promise(resolve => setTimeout(resolve, ms));
   }
 
   before(async () => {
-    app = require('child_process').execFile(
+    app = execFile(
       'node',
       [ '../support/babelmark-responder.js' ],
       {
-        cwd: __dirname,
+        cwd: new URL('.', import.meta.url),
         env: Object.assign({}, process.env, { PORT: PORT })
       }
     );
@@ -41,13 +43,15 @@ describe('babelmark responder app', function () {
 
 
   it('do request', () => {
+    const version = JSON.parse(readFileSync(new URL('../package.json', import.meta.url))).version;
+
     return request
       .get('/?text=foo')
       .expect(200)
       .expect({
         html: '<p>foo</p>\n',
         name: 'markdown-it',
-        version: require('../package.json').version
+        version
       });
   });
 

test/commonmark.js → test/commonmark.mjs

@@ -1,9 +1,8 @@
-'use strict';
-
-
-var p      = require('path');
-var load   = require('markdown-it-testgen').load;
-var assert = require('chai').assert;
+import { fileURLToPath } from 'node:url';
+import { relative } from 'node:path';
+import { load } from 'markdown-it-testgen';
+import markdownit from '../index.js';
+import { assert } from 'chai';
 
 
 function normalize(text) {
@@ -15,7 +14,7 @@ function generate(path, md) {
   load(path, function (data) {
     data.meta = data.meta || {};
 
-    var desc = data.meta.desc || p.relative(path, data.file);
+    var desc = data.meta.desc || relative(path, data.file);
 
     (data.meta.skip ? describe.skip : describe)(desc, function () {
       data.fixtures.forEach(function (fixture) {
@@ -29,7 +28,7 @@ function generate(path, md) {
 
 
 describe('CommonMark', function () {
-  var md = require('../')('commonmark');
+  var md = markdownit('commonmark');
 
-  generate(p.join(__dirname, 'fixtures/commonmark/good.txt'), md);
+  generate(fileURLToPath(new URL('fixtures/commonmark/good.txt', import.meta.url)), md);
 });

test/markdown-it.js

@@ -1,19 +0,0 @@
-'use strict';
-
-
-var path = require('path');
-
-
-var generate = require('markdown-it-testgen');
-
-
-describe('markdown-it', function () {
-  var md = require('../')({
-    html: true,
-    langPrefix: '',
-    typographer: true,
-    linkify: true
-  });
-
-  generate(path.join(__dirname, 'fixtures/markdown-it'), md);
-});

test/markdown-it.mjs

@@ -0,0 +1,15 @@
+import { fileURLToPath } from 'node:url';
+import generate from 'markdown-it-testgen';
+import markdownit from '../index.js';
+
+
+describe('markdown-it', function () {
+  var md = markdownit({
+    html: true,
+    langPrefix: '',
+    typographer: true,
+    linkify: true
+  });
+
+  generate(fileURLToPath(new URL('fixtures/markdown-it', import.meta.url)), md);
+});

test/misc.js → test/misc.mjs

@@ -1,8 +1,6 @@
-'use strict';
-
-
-var assert     = require('chai').assert;
-var markdownit = require('../');
+import { assert } from 'chai';
+import markdownit from '../index.js';
+import forInline from 'markdown-it-for-inline';
 
 
 describe('API', function () {
@@ -269,7 +267,7 @@ describe('Misc', function () {
 
   it('Should render link target attr', function () {
     var md = markdownit()
-      .use(require('markdown-it-for-inline'), 'target', 'link_open', function (tokens, idx) {
+      .use(forInline, 'target', 'link_open', function (tokens, idx) {
         tokens[idx].attrs.push([ 'target', '_blank' ]);
       });
 

test/pathological.js → test/pathological.mjs

@@ -1,17 +1,18 @@
-'use strict';
-
-
-const needle = require('needle');
-const assert = require('assert');
-const crypto = require('crypto');
-const Worker = require('jest-worker').default;
+import needle from 'needle';
+import assert from 'node:assert';
+import crypto from 'node:crypto';
+import { Worker as JestWorker } from 'jest-worker';
+import { readFileSync } from 'fs';
 
 
 async function test_pattern(str) {
-  const worker = new Worker(require.resolve('./pathological_worker.js'), {
-    numWorkers: 1,
-    enableWorkerThreads: true
-  });
+  const worker = new JestWorker(
+    new URL('./pathological_worker.js', import.meta.url),
+    {
+      numWorkers: 1,
+      enableWorkerThreads: true
+    }
+  );
 
   let result;
 
@@ -49,10 +50,11 @@ describe('Pathological sequences speed', () => {
       /* eslint-disable  max-len */
       const src = await needle('get', 'https://raw.githubusercontent.com/commonmark/cmark/master/test/pathological_tests.py');
       const src_md5 = crypto.createHash('md5').update(src.body).digest('hex');
+      const tracked_md5 = JSON.parse(readFileSync(new URL('./pathological.json', import.meta.url))).md5;
 
       assert.strictEqual(
         src_md5,
-        require('./pathological.json').md5,
+        tracked_md5,
         'CRC or cmark pathological tests hanged. Verify and update pathological.json'
       );
     });

test/ruler.js → test/ruler.mjs

@@ -1,8 +1,5 @@
-'use strict';
-
-
-var assert = require('chai').assert;
-var Ruler  = require('../lib/ruler');
+import { assert } from 'chai';
+import Ruler from '../lib/ruler.js';
 
 describe('Ruler', function () {
 

test/token.js → test/token.mjs

@@ -1,7 +1,5 @@
-'use strict';
-
-var assert = require('chai').assert;
-var Token  = require('../lib/token');
+import { assert } from 'chai';
+import Token from '../lib/token.js';
 
 
 describe('Token', function () {

test/utils.js → test/utils.mjs

@@ -1,20 +1,18 @@
-'use strict';
-
-
-var assert = require('chai').assert;
+import { assert } from 'chai';
+import utils from '../lib/common/utils.js';
 
 
 describe('Utils', function () {
 
   it('fromCodePoint', function () {
-    var fromCodePoint = require('../lib/common/utils').fromCodePoint;
+    var fromCodePoint = utils.fromCodePoint;
 
     assert.strictEqual(fromCodePoint(0x20), ' ');
     assert.strictEqual(fromCodePoint(0x1F601), '😁');
   });
 
   it('isValidEntityCode', function () {
-    var isValidEntityCode = require('../lib/common/utils').isValidEntityCode;
+    var isValidEntityCode = utils.isValidEntityCode;
 
     assert.strictEqual(isValidEntityCode(0x20), true);
     assert.strictEqual(isValidEntityCode(0xD800), false);
@@ -28,7 +26,7 @@ describe('Utils', function () {
   });
 
   /*it('replaceEntities', function () {
-    var replaceEntities = require('../lib/common/utils').replaceEntities;
+    var replaceEntities = utils.replaceEntities;
 
     assert.strictEqual(replaceEntities('&'), '&');
     assert.strictEqual(replaceEntities(' '), ' ');
@@ -40,7 +38,7 @@ describe('Utils', function () {
   });*/
 
   it('assign', function () {
-    var assign = require('../lib/common/utils').assign;
+    var assign = utils.assign;
 
     assert.deepEqual(assign({ a: 1 }, null, { b: 2 }), { a: 1, b: 2 });
     assert.throws(function () {
@@ -49,13 +47,13 @@ describe('Utils', function () {
   });
 
   it('escapeRE', function () {
-    var escapeRE = require('../lib/common/utils').escapeRE;
+    var escapeRE = utils.escapeRE;
 
     assert.strictEqual(escapeRE(' .?*+^$[]\\(){}|-'), ' \\.\\?\\*\\+\\^\\$\\[\\]\\\\\\(\\)\\{\\}\\|\\-');
   });
 
   it('isWhiteSpace', function () {
-    var isWhiteSpace = require('../lib/common/utils').isWhiteSpace;
+    var isWhiteSpace = utils.isWhiteSpace;
 
     assert.strictEqual(isWhiteSpace(0x2000), true);
     assert.strictEqual(isWhiteSpace(0x09), true);
@@ -64,7 +62,7 @@ describe('Utils', function () {
   });
 
   it('isMdAsciiPunct', function () {
-    var isMdAsciiPunct = require('../lib/common/utils').isMdAsciiPunct;
+    var isMdAsciiPunct = utils.isMdAsciiPunct;
 
     assert.strictEqual(isMdAsciiPunct(0x30), false);
 
@@ -74,7 +72,7 @@ describe('Utils', function () {
   });
 
   it('unescapeMd', function () {
-    var unescapeMd = require('../lib/common/utils').unescapeMd;
+    var unescapeMd = utils.unescapeMd;
 
     assert.strictEqual(unescapeMd('\\foo'), '\\foo');
     assert.strictEqual(unescapeMd('foo'), 'foo');