Doing test

src/command.cr

@@ -21,7 +21,6 @@ module CliGen
   class Command
     extend CliGen::Parser
 
-    @@action : String = ""
 
     macro inherited
       macro finished
@@ -29,10 +28,12 @@ module CliGen
         define_header
         define_runner
         define_parser
+        define_action_setter
       end
     end
 
     macro define_actions
+      @@action : String = ""
       ACTIONS = {{@type.class.methods.select(&.annotation(::CliGen::SubCommand)).map(&.name.stringify)}} of String
     end
 
@@ -42,7 +43,7 @@ module CliGen
       {% examples = [] of StringLiteral %}
       {% info_annos.select(&.[](:examples)).map(&.[](:examples).resolve).each(&.each{|example| examples << example}) %}
       HEADER = [
-      "#{PROGRAM_NAME} {{name}} [[flags]]",
+      "#{CliGen::APPNAME} {{name}} [[flags]]",
       "",
       {% unless examples.empty? %}
         "Examples:".colorize(:green),
@@ -140,15 +141,17 @@ module CliGen
           {{method.name}}
         {% end %}
         else
-          abort "ERROR : No action provided to command #{@type.name}"
+          abort "ERROR : No action provided to command {{@type.name}}"
         end
         {% end %}
       end
     end
 
-    def self.action=(action : String)
-      abort "ERROR : Action(#{action}) is not valid. Only #{ACTIONS.join(", ")} are acceptable" unless ACTIONS.includes?(action)
-      @@action = action
+    macro define_action_setter
+      def self.action=(action : String)
+        abort "ERROR : Action(#{action}) is not valid. Only #{ACTIONS.join(", ")} are acceptable" unless ACTIONS.includes?(action)
+        @@action = action
+      end
     end
 
   end