From 79e47fd98ff005848f1592a62b18a485e199ebba Mon Sep 17 00:00:00 2001
From: Kyle Decot <kyle@joinroot.com>
Date: Wed, 27 Feb 2019 15:05:58 -0500
Subject: [PATCH] Returns an empty list when the cluster does not exist

---
 moto/ecs/models.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/moto/ecs/models.py b/moto/ecs/models.py
index 4a6737ceb..13de67268 100644
--- a/moto/ecs/models.py
+++ b/moto/ecs/models.py
@@ -428,9 +428,6 @@ class EC2ContainerServiceBackend(BaseBackend):
                 if cluster_name in self.clusters:
                     list_clusters.append(
                         self.clusters[cluster_name].response_object)
-                else:
-                    raise Exception(
-                        "{0} is not a cluster".format(cluster_name))
         return list_clusters
 
     def delete_cluster(self, cluster_str):