1 files changed, 26 insertions, 20 deletions

diff --git a/railties/lib/rails/commands/commands_tasks.rb b/railties/lib/rails/commands/commands_tasks.rb
index de60423784..da3b9452d5 100644
--- a/railties/lib/rails/commands/commands_tasks.rb
+++ b/railties/lib/rails/commands/commands_tasks.rb
@@ -1,3 +1,5 @@
+require 'rails/commands/rake_proxy'
+
 module Rails
   # This is a class which takes in a rails command and initiates the appropriate
   # initiation sequence.
@@ -5,6 +7,8 @@ module Rails
   # Warning: This class mutates ARGV because some commands require manipulating
   # it before they are run.
   class CommandsTasks # :nodoc:
+    include Rails::RakeProxy
+
     attr_reader :argv
 
     HELP_MESSAGE = <<-EOT
@@ -14,21 +18,25 @@ The most common rails commands are:
  generate    Generate new code (short-cut alias: "g")
  console     Start the Rails console (short-cut alias: "c")
  server      Start the Rails server (short-cut alias: "s")
+ test        Run tests (short-cut alias: "t")
  dbconsole   Start a console for the database specified in config/database.yml
              (short-cut alias: "db")
  new         Create a new Rails application. "rails new my_app" creates a
              new application called MyApp in "./my_app"
 
-In addition to those, there are:
- application  Generate the Rails application code
- destroy      Undo code generated with "generate" (short-cut alias: "d")
- plugin new   Generates skeleton for developing a Rails plugin
- runner       Run a piece of code in the application environment (short-cut alias: "r")
-
 All commands can be run with -h (or --help) for more information.
+
+In addition to those commands, there are:
 EOT
 
-    COMMAND_WHITELIST = %(plugin generate destroy console server dbconsole application runner new version help)
+    ADDITIONAL_COMMANDS = [
+      [ 'destroy', 'Undo code generated with "generate" (short-cut alias: "d")' ],
+      [ 'plugin new', 'Generates skeleton for developing a Rails plugin' ],
+      [ 'runner',
+        'Run a piece of code in the application environment (short-cut alias: "r")' ]
+    ]
+
+    COMMAND_WHITELIST = %w(plugin generate destroy console server dbconsole runner new version help test)
 
     def initialize(argv)
       @argv = argv
@@ -36,10 +44,11 @@ EOT
 
     def run_command!(command)
       command = parse_command(command)
+
       if COMMAND_WHITELIST.include?(command)
         send(command)
       else
-        write_error_message(command)
+        run_rake_task(command)
       end
     end
 
@@ -82,15 +91,15 @@ EOT
       end
     end
 
+    def test
+      require_command!("test")
+    end
+
     def dbconsole
       require_command!("dbconsole")
       Rails::DBConsole.start
     end
 
-    def application
-      require_command!("application")
-    end
-
     def runner
       require_command!("runner")
     end
@@ -110,6 +119,7 @@ EOT
 
     def help
       write_help_message
+      write_commands ADDITIONAL_COMMANDS + formatted_rake_tasks
     end
 
     private
@@ -132,7 +142,7 @@ EOT
         require 'rails/generators'
         require_application_and_environment!
         Rails.application.load_generators
-        require "rails/commands/#{command}"
+        require_command!(command)
       end
 
       # Change to the application's path if there is no config.ru file in current directory.
@@ -151,13 +161,9 @@ EOT
         puts HELP_MESSAGE
       end
 
-      def write_error_message(command)
-        puts "Error: Command '#{command}' not recognized"
-        if %x{rake #{command} --dry-run 2>&1 } && $?.success?
-          puts "Did you mean: `$ rake #{command}` ?\n\n"
-        end
-        write_help_message
-        exit(1)
+      def write_commands(commands)
+        width = commands.map { |name, _| name.size }.max || 10
+        commands.each { |command| printf(" %-#{width}s   %s\n", *command) }
       end
 
       def parse_command(command)