[test] add removeAtag util test.

Author: Koooooo-7

test/unit/util.test.js

@@ -2,8 +2,9 @@
 require = require('esm')(
   module /* , options */
 ); /* eslint-disable-line no-global-assign */
-const { expect } = require('chai');
 const { resolvePath } = require('../../src/core/router/util');
+const { removeAtag } = require('../../src/core/render/utils');
+const { expect } = require('chai');
 
 describe('router/util', function() {
   it('resolvePath', async function() {
@@ -30,3 +31,13 @@ describe('router/util', function() {
     expect(result).equal('/hello.md');
   });
 });
+
+describe('render/utils/removeAtag', function() {
+  it('remove A tag', async function() {
+    // WHEN
+    const result = removeAtag('<a href="http://url">content</a>');
+
+    // THEN
+    expect(result).equal('content');
+  });
+});