add test for issue 267 #267

Author: taoqf

package.json

@@ -12,6 +12,7 @@
 		"compile:amd": "tsc -t es5 -m amd -d false --outFile ./dist/main.js",
 		"lint": "eslint ./src/*.ts ./src/**/*.ts",
 		"---------------": "",
+		"pretest": "cd ./test/ && yarn install && cd ..",
 		"test": "yarn run test:target",
 		"test:src": "cross-env TEST_TARGET=src yarn run test",
 		"test:dist": "cross-env TEST_TARGET=dist yarn run test",

test/package.json

@@ -4,7 +4,7 @@
     "packages/*"
   ],
   "dependencies": {
-    "@test/test-target": "link:assets/packages/wrapper",
+    "@test/test-target": "link:./assets/packages/wrapper",
     "@test/root": "link:../",
     "@test/last-release": "npm:node-html-parser@latest"
   }

test/tests/issues/267.js

@@ -0,0 +1,9 @@
+const { parse } = require('@test/test-target');
+
+describe.only('issue 267', function () {
+	it('Incorrect Handling of Empty Class Attributes in SVG Parsing', function () {
+		const html = `<polygon points="-235.18 1571.95 1014.73 1284.4 1083.46 1590.1 -166.45 1877.65 -235.18 1571.95" fill="#ff8200" class="" design-color="primary"></polygon> `;
+		const root = parse(html);
+		root.toString().should.eql(html);
+	});
+});