diff --git a/packages/@aws-cdk/aws-ecs/test/ec2/integ.event-task.lit.expected.json b/packages/@aws-cdk/aws-ecs/test/ec2/integ.event-task.lit.expected.json
index 3e9a3a89afac8..a8def4840a730 100644
--- a/packages/@aws-cdk/aws-ecs/test/ec2/integ.event-task.lit.expected.json
+++ b/packages/@aws-cdk/aws-ecs/test/ec2/integ.event-task.lit.expected.json
@@ -114,7 +114,7 @@
           "Ref": "Vpc8378EB38"
         },
         "AvailabilityZone": "test-region-1a",
-        "MapPublicIpOnLaunch":false,
+        "MapPublicIpOnLaunch": false,
         "Tags": [
           {
             "Key": "Name",
@@ -204,9 +204,7 @@
             "IpProtocol": "-1"
           }
         ],
-        "SecurityGroupIngress": [
-
-        ],
+        "SecurityGroupIngress": [],
         "Tags": [
           {
             "Key": "Name",
@@ -387,7 +385,7 @@
             "Fn::Join": [
               "",
               [
-                "arn: ",
+                "arn:",
                 {
                   "Ref": "AWS::Partition"
                 },
@@ -465,7 +463,7 @@
             "Value": "aws-ecs-integ-ecs/EcsCluster/DefaultAutoScalingGroup"
           }
         ],
-        "Timeout":310
+        "Timeout": 310
       },
       "DependsOn": [
         "EcsClusterDefaultAutoScalingGroupDrainECSHookFunctionServiceRoleDefaultPolicyA45BF396",
@@ -561,7 +559,7 @@
         },
         "LifecycleTransition": "autoscaling:EC2_INSTANCE_TERMINATING",
         "DefaultResult": "CONTINUE",
-        "HeartbeatTimeout":300,
+        "HeartbeatTimeout": 300,
         "NotificationTargetARN": {
           "Ref": "EcsClusterDefaultAutoScalingGroupDrainECSHookTopicC705BD25"
         },
@@ -591,7 +589,7 @@
             0,
             {
               "Fn::Split": [
-                ": ",
+                ":",
                 {
                   "Ref": "EventImageImageNameE972A8B1"
                 }
@@ -631,7 +629,7 @@
             "Fn::Join": [
               "",
               [
-                "arn: ",
+                "arn:",
                 {
                   "Ref": "AWS::Partition"
                 },
@@ -660,15 +658,15 @@
                 "Fn::Join": [
                   "",
                   [
-                    "arn: ",
+                    "arn:",
                     {
                       "Ref": "AWS::Partition"
                     },
-                    ":ecr: ",
+                    ":ecr:",
                     {
                       "Ref": "AWS::Region"
                     },
-                    ": ",
+                    ":",
                     {
                       "Ref": "AWS::AccountId"
                     },
@@ -678,7 +676,7 @@
                         0,
                         {
                           "Fn::Split": [
-                            ": ",
+                            ":",
                             {
                               "Ref": "EventImageImageNameE972A8B1"
                             }
@@ -750,7 +748,7 @@
           ]
         },
         "Runtime": "nodejs8.10",
-        "Timeout":300
+        "Timeout": 300
       },
       "DependsOn": [
         "AdoptEcrRepositorydbc60defc59544bcaa5c28c95d68f62cServiceRoleDefaultPolicy6BC8737C",
@@ -810,20 +808,20 @@
                       4,
                       {
                         "Fn::Split": [
-                          ": ",
+                          ":",
                           {
                             "Fn::Join": [
                               "",
                               [
-                                "arn: ",
+                                "arn:",
                                 {
                                   "Ref": "AWS::Partition"
                                 },
-                                ":ecr: ",
+                                ":ecr:",
                                 {
                                   "Ref": "AWS::Region"
                                 },
-                                ": ",
+                                ":",
                                 {
                                   "Ref": "AWS::AccountId"
                                 },
@@ -847,20 +845,20 @@
                       3,
                       {
                         "Fn::Split": [
-                          ": ",
+                          ":",
                           {
                             "Fn::Join": [
                               "",
                               [
-                                "arn: ",
+                                "arn:",
                                 {
                                   "Ref": "AWS::Partition"
                                 },
-                                ":ecr: ",
+                                ":ecr:",
                                 {
                                   "Ref": "AWS::Region"
                                 },
-                                ": ",
+                                ":",
                                 {
                                   "Ref": "AWS::AccountId"
                                 },
@@ -885,13 +883,13 @@
                       "RepositoryName"
                     ]
                   },
-                  ": ",
+                  ":",
                   {
                     "Fn::Select": [
                       1,
                       {
                         "Fn::Split": [
-                          ": ",
+                          ":",
                           {
                             "Ref": "EventImageImageNameE972A8B1"
                           }
@@ -902,24 +900,14 @@
                 ]
               ]
             },
-            "Links": [
-
-            ],
+            "Links": [],
             "LinuxParameters": {
               "Capabilities": {
-                "Add": [
-
-                ],
-                "Drop": [
-
-                ]
+                "Add": [],
+                "Drop": []
               },
-              "Devices": [
-
-              ],
-              "Tmpfs": [
-
-              ]
+              "Devices": [],
+              "Tmpfs": []
             },
             "LogConfiguration": {
               "LogDriver": "awslogs",
@@ -934,19 +922,11 @@
               }
             },
             "Memory":512,
-            "MountPoints": [
-
-            ],
+            "MountPoints": [],
             "Name": "ScheduledContainer",
-            "PortMappings": [
-
-            ],
-            "Ulimits": [
-
-            ],
-            "VolumesFrom": [
-
-            ]
+            "PortMappings": [],
+            "Ulimits": [],
+            "VolumesFrom": []
           }
         ],
         "ExecutionRoleArn": {
@@ -969,9 +949,7 @@
             "Arn"
           ]
         },
-        "Volumes": [
-
-        ]
+        "Volumes": []
       }
     },
     "ScheduledTaskExampleScheduledTaskDefExecutionRole9F56827C": {
@@ -1017,15 +995,15 @@
                 "Fn::Join": [
                   "",
                   [
-                    "arn: ",
+                    "arn:",
                     {
                       "Ref": "AWS::Partition"
                     },
-                    ":ecr: ",
+                    ":ecr:",
                     {
                       "Ref": "AWS::Region"
                     },
-                    ": ",
+                    ":",
                     {
                       "Ref": "AWS::AccountId"
                     },
@@ -1142,7 +1120,7 @@
     "ScheduledTaskExampleScheduledTaskLoggingLogGroupBB9B0B9F": {
       "Type": "AWS::Logs::LogGroup",
       "Properties": {
-        "RetentionInDays":365
+        "RetentionInDays": 365
       },
       "DeletionPolicy": "Retain"
     },
@@ -1160,7 +1138,7 @@
               ]
             },
             "EcsParameters": {
-              "TaskCount":2,
+              "TaskCount": 2,
               "TaskDefinitionArn": {
                 "Ref": "ScheduledTaskExampleScheduledTaskDef3D99A3DD"
               }