1 files changed, 21 insertions, 9 deletions
diff --git a/lib/system_check/simple_executor.rb b/lib/system_check/simple_executor.rb
index 2ffe837e326..fc07f09dcb2 100644
--- a/lib/system_check/simple_executor.rb
+++ b/lib/system_check/simple_executor.rb
@@ -1,16 +1,22 @@
 module SystemCheck
+  # Simple Executor is current default executor for GitLab
+  # It is a simple port from display logic in the old check.rake
+  #
+  # There is no concurrency level and the output is progressively
+  # printed into the STDOUT
   class SimpleExecutor < BaseExecutor
+    # Executes defined checks in the specified order and outputs confirmation or error information
     def execute
       start_checking(component)
 
       @checks.each do |check|
-        print "#{check.name}"
+        $stdout.print "#{check.name}"
         if check.skip?
-          puts "skipped #{'('+skip_message+')' if skip_message}".color(:magenta)
+          $stdout.puts "skipped #{'(' + skip_message + ')' if skip_message}".color(:magenta)
         elsif check.check?
-          puts 'yes'.color(:green)
+          $stdout.puts 'yes'.color(:green)
         else
-          puts 'no'.color(:red)
+          $stdout.puts 'no'.color(:red)
           check.show_error
         end
       end
@@ -20,15 +26,21 @@ module SystemCheck
 
     private
 
+    # Prints header content for the series of checks to be executed for this component
+    #
+    # @param [String] component name of the component relative to the checks being executed
     def start_checking(component)
-      puts "Checking #{component.color(:yellow)} ..."
-      puts ''
+      $stdout.puts "Checking #{component.color(:yellow)} ..."
+      $stdout.puts ''
     end
 
+    # Prints footer content for the series of checks executed for this component
+    #
+    # @param [String] component name of the component relative to the checks being executed
     def finished_checking(component)
-      puts ''
-      puts "Checking #{component.color(:yellow)} ... #{"Finished".color(:green)}"
-      puts ''
+      $stdout.puts ''
+      $stdout.puts "Checking #{component.color(:yellow)} ... #{'Finished'.color(:green)}"
+      $stdout.puts ''
     end
   end
 end