add get method to Client, add errors to mock

test/fixtures/elasticsearch.js

@@ -1,4 +1,5 @@
 import { uniqueId } from 'lodash';
+import elasticsearch from 'elasticsearch';
 
 function Client() {
   this.indices = {
@@ -25,6 +26,33 @@ Client.prototype.ping = function () {
   return Promise.resolve();
 };
 
-export default {
-  Client: Client
+Client.prototype.get = function (params, source) {
+  if (params === elasticsearch.errors.NotFound) return elasticsearch.errors.NotFound;
+
+  const _source = source || {
+    payload: {
+      id: 'sample-job-1',
+      now: 'Mon Apr 25 2016 14:13:04 GMT-0700 (MST)'
+    },
+    priority: 10,
+    timeout: 10000,
+    created_at: '2016-04-25T21:13:04.738Z',
+    attempts: 0,
+    max_attempts: 3,
+    status: 'pending'
+  };
+
+  return {
+    _index: params.index,
+    _type: params.type,
+    _id: params.id || 'AVRPRLnlp7Ur1SZXfT-T',
+    _version: params.version || 1,
+    found: true,
+    _source: _source
+  };
+};
+
+export default {
+  Client: Client,
+  errors: elasticsearch.errors
 };