Update test_ring_buffer.py

Author: briandoyle81

ring_buffer/test_ring_buffer.py

@@ -28,7 +28,11 @@ def test_ring_buffer(self):
         self.buffer.append('i')
         self.assertEqual(len(self.buffer.storage), 5)
         self.assertEqual(self.buffer.get(), ['f', 'g', 'h', 'i', 'e'])
+        
+        self.buffer.append('j')
+        self.buffer.append('k')
+        self.assertEqual(self.buffer.get(), ['k', 'g', 'h', 'i', 'j'])
 
 
 if __name__ == '__main__':
-    unittest.main()
+    unittest.main()