# File lib/rspec/core/configuration.rb, line 181
      def initialize
        @expectation_frameworks = []
        @include_or_extend_modules = []
        @mock_framework = nil
        @files_to_run = []
        @formatters = []
        @color = false
        @pattern = '**/*_spec.rb'
        @failure_exit_code = 1
        @backtrace_clean_patterns = DEFAULT_BACKTRACE_PATTERNS.dup
        @default_path = 'spec'
        @filter_manager = FilterManager.new
        @preferred_options = {}
        @seed = srand % 0xFFFF
      end