add queue tests for job creation

test/fixtures/job.js

@@ -0,0 +1,17 @@
+import events from 'events';
+
+export default class Job extends events.EventEmitter {
+  constructor(queue, index, type, payload, options = {}) {
+    super();
+
+    this.queue = queue;
+    this.index = index;
+    this.jobType = type;
+    this.payload = payload;
+    this.options = options;
+  }
+
+  getProp(name) {
+    return this[name];
+  }
+}