mocks for topic permissions

lib/fog/aws/requests/sns/add_permission.rb

@@ -14,7 +14,19 @@ module Fog
 
       class Mock
         def add_permission(options = {})
-          Fog::Mock.not_implemented
+          topic_arn = options.delete('TopicArn')
+          label     = options.delete('Label')
+          actions   = options.select { |k,v| k.match(/^ActionName/) }.values
+          members   = options.select { |k,v| k.match(/^AWSAccountId/) }.values
+
+          self.data[:permissions][topic_arn][label] = {
+            :members => members,
+            :actions => actions,
+          }
+
+          response = Excon::Response.new
+          response.body = {"RequestId" => Fog::AWS::Mock.request_id}
+          response
         end
       end
     end

lib/fog/aws/requests/sns/create_topic.rb

@@ -38,6 +38,7 @@ module Fog
             "EffectiveDeliveryPolicy" => %Q|{"http":{"defaultHealthyRetryPolicy":{"minDelayTarget":20,"maxDelayTarget":20,"numRetries":3,"numMaxDelayRetries":0,"numNoDelayRetries":0,"numMinDelayRetries":0,"backoffFunction":"linear"},"disableSubscriptionOverrides":false}}|,
             "Policy"                  => %Q|{"Version":"2008-10-17","Id":"__default_policy_ID","Statement":[{"Sid":"__default_statement_ID","Effect":"Allow","Principal":{"AWS":"*"},"Action":["SNS:Publish","SNS:RemovePermission","SNS:SetTopicAttributes","SNS:DeleteTopic","SNS:ListSubscriptionsByTopic","SNS:GetTopicAttributes","SNS:Receive","SNS:AddPermission","SNS:Subscribe"],"Resource":"arn:aws:sns:us-east-1:990279267269:Smithy","Condition":{"StringEquals":{"AWS:SourceOwner":"990279267269"}}}]}|
           }
+          self.data[:permissions][topic_arn] = {}
           response.body = {"TopicArn" => topic_arn, "RequestId" => Fog::AWS::Mock.request_id}
           response
         end

lib/fog/aws/requests/sns/remove_permission.rb

@@ -14,7 +14,14 @@ module Fog
 
       class Mock
         def remove_permission(options = {})
-          Fog::Mock.not_implemented
+          topic_arn = options['TopicArn']
+          label     = options['Label']
+
+          self.data[:permissions][topic_arn].delete(label)
+
+          response = Excon::Response.new
+          response.body = {"RequestId" => Fog::AWS::Mock.request_id}
+          response
         end
       end
     end

lib/fog/aws/sns.rb

@@ -32,6 +32,7 @@ module Fog
               region_hash[key] = {
                 :topics        => {},
                 :subscriptions => {},
+                :permissions   => {},
               }
             end
           end

tests/requests/sns/topic_tests.rb

@@ -32,6 +32,14 @@ Shindo.tests('AWS::SNS | topic lifecycle tests', ['aws', 'sns']) do
       Fog::AWS[:sns].get_topic_attributes(@topic_arn).body
     end
 
+    tests("#add_permission('#{@topic_arn}')").formats(AWS::SNS::Formats::BASIC) do
+      Fog::AWS[:sns].add_permission('TopicArn' => @topic_arn, 'Label' => 'Test', 'ActionName.member.1' => 'Subscribe', 'AWSAccountId.member.1' => '1234567890').body
+    end
+
+    tests("#remove_permission('#{@topic_arn}')").formats(AWS::SNS::Formats::BASIC) do
+      Fog::AWS[:sns].remove_permission('TopicArn' => @topic_arn, 'Label' => 'Test').body
+    end
+
     tests("#delete_topic('#{@topic_arn}')").formats(AWS::SNS::Formats::BASIC) do
       Fog::AWS[:sns].delete_topic(@topic_arn).body
     end