eadd length tests

Author: pmcmaw

lib/puppet/functions/length.rb

@@ -4,6 +4,14 @@
     scope_param
     optional_repeated_param 'Any', :args
   end
+  def length(value)
+    if value.is_a?(String)
+      result = value.length
+    elsif value.is_a?(Array) || value.is_a?(Hash)
+      result = value.size
+    end
+    result
+  end
 
   def deprecation_gen(scope, *args)
     call_function('deprecation', 'length', 'This method is deprecated, this function is now shipped with Puppet in versions 5.5.0 and later. For more information please see Puppet 5.5.0 Release Notes.') # rubocop:disable Metrics/LineLength