fix test

test/util/slack.test.js

@@ -10,9 +10,7 @@ describe('Slack Util', function () {
   var crowi = new (require(ROOT_DIR + '/lib/crowi'))(ROOT_DIR, process.env);
   var slack = require(crowi.libDir + '/util/slack')(crowi);
 
-  it('convert markdown', function() {
-    var markdown = '# ほげほげ\n\n* aaa\n* bbb\n* ccc\n\n## ほげほげほげ\n\n[Yahoo! Japan](http://www.yahoo.co.jp/) is here\n**Bold** and *Italic*';
-    var markdownConverted = '\n*ほげほげ*\n\n• aaa\n• bbb\n• ccc\n\n\n*ほげほげほげ*\n\n<http://www.yahoo.co.jp/|Yahoo! Japan> is here\n**Bold** and *Italic*';
-    expect(slack.convertMarkdownToMrkdwn(markdown)).to.be.equal(markdownConverted);
+  it('post method exists', function() {
+    expect(slack).to.respondTo('post');
   });
 });