Show minitest options in test runner help

railties/lib/minitest/rails_plugin.rb

@@ -1,5 +1,6 @@
 require "active_support/core_ext/module/attribute_accessors"
 require "rails/test_unit/reporter"
+require "rails/test_unit/runner"
 
 module Minitest
   class SuppressedSummaryReporter < SummaryReporter
@@ -10,6 +11,8 @@ def aggregated_results(*)
   end
 
   def self.plugin_rails_options(opts, options)
+    Rails::TestUnit::Runner.attach_before_load_options(opts)
+
     opts.on("-b", "--backtrace", "Show the complete backtrace") do
       options[:full_backtrace] = true
     end

railties/lib/rails/commands/test/test_command.rb

@@ -1,33 +1,26 @@
 require_relative "../../command"
 require_relative "../../test_unit/runner"
+require_relative "../../test_unit/reporter"
 
 module Rails
   module Command
     class TestCommand < Base # :nodoc:
       no_commands do
         def help
-          require "optparse"
-          require "minitest/rails_plugin"
+          say "Usage: #{Rails::TestUnitReporter.executable} [options] [files or directories]"
+          say ""
+          say "You can run a single test by appending a line number to a filename:"
+          say ""
+          say "    #{Rails::TestUnitReporter.executable} test/models/user_test.rb:27"
+          say ""
+          say "You can run multiple files and directories at the same time:"
+          say ""
+          say "    #{Rails::TestUnitReporter.executable} test/controllers test/integration/login_test.rb"
+          say ""
+          say "By default test failures and errors are reported inline during a run."
+          say ""
 
-          opts = OptionParser.new
-          opts.banner = "Usage: #{Rails::TestUnitReporter.executable} [options] [files or directories]"
-          opts.separator ""
-          opts.separator "You can run a single test by appending a line number to a filename:"
-          opts.separator ""
-          opts.separator "    #{Rails::TestUnitReporter.executable} test/models/user_test.rb:27"
-          opts.separator ""
-          opts.separator "You can run multiple files and directories at the same time:"
-          opts.separator ""
-          opts.separator "    #{Rails::TestUnitReporter.executable} test/controllers test/integration/login_test.rb"
-          opts.separator ""
-          opts.separator "By default test failures and errors are reported inline during a run."
-          opts.separator ""
-
-          opts.separator "Rails options:"
-          Rails::TestUnit::Runner.options(opts)
-          Minitest.plugin_rails_options(opts, {})
-
-          say opts
+          Minitest.run(%w(--help))
         end
       end
 

railties/lib/rails/test_unit/runner.rb

@@ -11,7 +11,7 @@ class Runner
       mattr_reader :filters, default: []
 
       class << self
-        def options(opts)
+        def attach_before_load_options(opts)
           opts.on("--warnings", "-w", "Run with Ruby warnings enabled") {}
           opts.on("--environment", "-e", "Run tests in the ENV environment") {}
         end