Minitest

# File railties/lib/minitest/rails_plugin.rb, line 111
  def self.plugin_rails_init(options)
    # Don't mess with Minitest unless RAILS_ENV is set
    return unless ENV["RAILS_ENV"]

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

    # Suppress summary reports when outputting inline rerun snippets.
    if reporter.reporters.reject! { |reporter| reporter.kind_of?(SummaryReporter) }
      reporter << SuppressedSummaryReporter.new(options[:io], options)
    end

    # Replace progress reporter for colors.
    if reporter.reporters.reject! { |reporter| reporter.kind_of?(ProgressReporter) }
      reporter << ::Rails::TestUnitReporter.new(options[:io], options)
    end

    # Add slowest tests reporter at the end.
    if options[:profile]
      reporter << ProfileReporter.new(options[:io], options)
    end
  end

# File railties/lib/minitest/rails_plugin.rb, line 68
  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

    opts.on("-d", "--defer-output", "Output test failures and errors after the test run") do
      options[:output_inline] = false
    end

    opts.on("-f", "--fail-fast", "Abort test run on first failure or error") do
      options[:fail_fast] = true
    end

    opts.on("-c", "--[no-]color", "Enable color in the output") do |value|
      options[:color] = value
    end

    opts.on("--profile [COUNT]", "Enable profiling of tests and list the slowest test cases (default: 10)") do |value|
      default_count = 10

      if value.nil?
        count = default_count
      else
        count = Integer(value, exception: false)
        if count.nil?
          warn("Non integer specified as profile count, separate " \
               "your path from options with -- e.g. " \
               "`#{::Rails::TestUnitReporter.executable} --profile -- #{value}`")
          count = default_count
        end
      end

      options[:profile] = count
    end

    options[:color] = true
    options[:output_inline] = true
  end