Add WPT runner

test/common/fixtures.js

@@ -0,0 +1,33 @@
+/* eslint-disable node-core/require-common-first, node-core/required-modules */
+'use strict';
+
+const path = require('path');
+const fs = require('fs');
+
+const fixturesDir = path.join(__dirname, '..', 'fixtures');
+
+function fixturesPath(...args) {
+  return path.join(fixturesDir, ...args);
+}
+
+function readFixtureSync(args, enc) {
+  if (Array.isArray(args))
+    return fs.readFileSync(fixturesPath(...args), enc);
+  return fs.readFileSync(fixturesPath(args), enc);
+}
+
+function readFixtureKey(name, enc) {
+  return fs.readFileSync(fixturesPath('keys', name), enc);
+}
+
+function readFixtureKeys(enc, ...names) {
+  return names.map((name) => readFixtureKey(name, enc));
+}
+
+module.exports = {
+  fixturesDir,
+  path: fixturesPath,
+  readSync: readFixtureSync,
+  readKey: readFixtureKey,
+  readKeys: readFixtureKeys,
+};

test/common/index.js

@@ -0,0 +1,4 @@
+'use strict';
+
+exports.hasIntl = true;
+