feat(slack): create slack wrapper class to extend slack

src/slack-wrapper.js

@@ -0,0 +1,9 @@
+import SlackClient from 'slack-client'
+
+class SlackWrapper extends SlackClient {
+  constructor (...args) {
+    super(...args)
+  }
+}
+
+module.exports = SlackWrapper

test/slack-wrapper.test.js

@@ -0,0 +1,12 @@
+import SlackClient from 'slack-client'
+import SlackWrapper from '../src/slack-wrapper'
+
+describe('Slack Wrapper', () => {
+  describe('initialization', () => {
+    it('is an instance of slack-client', () => {
+      let slackInstance = new SlackWrapper()
+
+      expect(slackInstance).to.be.an.instanceOf(SlackClient)
+    })
+  })
+})