test(module): add ES Module test for client html-dom-parser.mjs

Author: remarkablemark

lib/client/domparser.js

@@ -20,13 +20,15 @@ var parseFromString = function () {
   );
 };
 
+var DOMParser = typeof window === 'object' && window.DOMParser;
+
 /**
  * DOMParser (performance: slow).
  *
  * @see https://developer.mozilla.org/docs/Web/API/DOMParser#Parsing_an_SVG_or_HTML_document
  */
-if (typeof window.DOMParser === 'function') {
-  var domParser = new window.DOMParser();
+if (typeof DOMParser === 'function') {
+  var domParser = new DOMParser();
   var mimeType = 'text/html';
 
   /**
@@ -52,7 +54,7 @@ if (typeof window.DOMParser === 'function') {
  *
  * @see https://developer.mozilla.org/docs/Web/API/DOMImplementation/createHTMLDocument
  */
-if (document.implementation) {
+if (typeof document === 'object' && document.implementation) {
   var doc = document.implementation.createHTMLDocument();
 
   /**
@@ -79,7 +81,9 @@ if (document.implementation) {
  *
  * @see https://developer.mozilla.org/docs/Web/HTML/Element/template
  */
-var template = document.createElement('template');
+var template =
+  typeof document === 'object' ? document.createElement('template') : {};
+
 var parseFromTemplate;
 
 if (template.content) {

test/module/index.mjs

@@ -1,4 +1,6 @@
 import assert from 'assert';
 import HTMLDOMParser from '../../index.mjs';
+import HTMLDOMParserClient from '../../lib/client/html-to-dom.mjs';
 
 assert.strictEqual(typeof HTMLDOMParser, 'function');
+assert.strictEqual(typeof HTMLDOMParserClient, 'function');