Add delay in kitchen test

Author: hgreebe

cookbooks/aws-parallelcluster-slurm/test/controls/slurm_config_spec.rb

@@ -46,21 +46,7 @@
   end
 
   describe 'check cgroup memory resource controller is enabled' do
-    describe command('cat /proc/cgroups') do
-      its('stdout') { should match /memory/ }
-    end
-
-    describe command("grep memory /proc/cgroups") do
-      its('stdout') { should_not be_empty }
-    end
-
-    describe command("grep memory /proc/cgroups | awk '{print $4}'") do
-      its('stdout.strip') { should eq '1' }
-    end
-  end
-
-  describe 'check cgroup memory resource controller is enabled' do
-    subject { bash("grep memory /proc/cgroups | awk '{print $4}'") }
+    subject { bash("sleep 5 && grep memory /proc/cgroups | awk '{print $4}'") }
     its('exit_status') { should eq 0 }
     its('stdout.strip') { should cmp 1 }
   end