diff --git a/lib/fog/aws/requests/auto_scaling/resume_processes.rb b/lib/fog/aws/requests/auto_scaling/resume_processes.rb
index f66eef881..bd653fc33 100644
--- a/lib/fog/aws/requests/auto_scaling/resume_processes.rb
+++ b/lib/fog/aws/requests/auto_scaling/resume_processes.rb
@@ -40,7 +40,16 @@ module Fog
       class Mock
 
         def resume_processes(auto_scaling_group_name, options = {})
-          Fog::Mock.not_implemented
+          unless self.data[:auto_scaling_groups].has_key?(auto_scaling_group_name)
+            raise Fog::AWS::AutoScaling::ValidationError.new("AutoScalingGroup name not found - no such group: #{auto_scaling_group_name}")
+          end
+
+          response = Excon::Response.new
+          response.status = 200
+          response.body = {
+            'ResponseMetadata' => { 'RequestId' => Fog::AWS::Mock.request_id }
+          }
+          response
         end
 
       end
diff --git a/lib/fog/aws/requests/auto_scaling/suspend_processes.rb b/lib/fog/aws/requests/auto_scaling/suspend_processes.rb
index 9c623a3a3..68edf0f7c 100644
--- a/lib/fog/aws/requests/auto_scaling/suspend_processes.rb
+++ b/lib/fog/aws/requests/auto_scaling/suspend_processes.rb
@@ -44,10 +44,15 @@ module Fog
 
         def suspend_processes(auto_scaling_group_name, options = {})
           unless self.data[:auto_scaling_groups].has_key?(auto_scaling_group_name)
-            raise Fog::AWS::AutoScaling::ValidationError.new('AutoScalingGroup name not found - null')
+            raise Fog::AWS::AutoScaling::ValidationError.new("AutoScalingGroup name not found - no such group: #{auto_scaling_group_name}")
           end
 
-          Fog::Mock.not_implemented
+          response = Excon::Response.new
+          response.status = 200
+          response.body = {
+            'ResponseMetadata' => { 'RequestId' => Fog::AWS::Mock.request_id }
+          }
+          response
         end
 
       end
diff --git a/tests/aws/requests/auto_scaling/model_tests.rb b/tests/aws/requests/auto_scaling/model_tests.rb
index ab813ecfe..be07e1e36 100644
--- a/tests/aws/requests/auto_scaling/model_tests.rb
+++ b/tests/aws/requests/auto_scaling/model_tests.rb
@@ -1,8 +1,6 @@
 Shindo.tests('AWS::AutoScaling | model_tests', ['aws', 'auto_scaling']) do
 
   tests('success') do
-    pending if Fog.mocking?
-
     lc = nil
     lc_id = 'fog-model-lc'
 
@@ -62,7 +60,7 @@ Shindo.tests('AWS::AutoScaling | model_tests', ['aws', 'auto_scaling']) do
 
       tests('suspend processes') do
         asg.suspend_processes()
-        #tests('processes suspended').returns([]) { asg.suspended_processes }
+        tests('processes suspended').returns([]) { asg.suspended_processes }
       end
 
       tests('resume processes') do