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require "active_support/core_ext/module/attribute_accessors"
require "rails/test_unit/reporter"
require "rails/test_unit/test_requirer"

module Minitest
  def self.plugin_rails_options(opts, options)
    opts.separator ""
    opts.separator "Usage: bin/rails test [options] [files or directories]"
    opts.separator "You can run a single test by appending a line number to a filename:"
    opts.separator ""
    opts.separator "    bin/rails test 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 "    bin/rails test test/controllers test/integration/login_test.rb"
    opts.separator ""

    opts.separator "Rails options:"
    opts.on("-e", "--environment [ENV]",
            "Run tests in the ENV environment") do |env|
      options[:environment] = env.strip
    end

    opts.on("-b", "--backtrace",
            "Show the complete backtrace") do
      options[:full_backtrace] = true
    end

    options[:patterns] = opts.order!
  end

  def self.plugin_rails_init(options)
    self.run_with_rails_extension = true

    ENV["RAILS_ENV"] = options[:environment] || "test"

    ::Rails::TestRequirer.require_files options[:patterns] unless run_with_autorun

    unless options[:full_backtrace] || ENV["BACKTRACE"]
      # Plugin can run without Rails loaded, check before filtering.
      Minitest.backtrace_filter = ::Rails.backtrace_cleaner if ::Rails.respond_to?(:backtrace_cleaner)
    end

    self.reporter << ::Rails::TestUnitReporter.new(options[:io], options)
  end

  mattr_accessor(:run_with_autorun)         { false }
  mattr_accessor(:run_with_rails_extension) { false }
end

Minitest.extensions << 'rails'