simplecov.rb

#
# Code coverage for ruby 1.9. Please check out README for a full introduction.
#
# Coverage may be inaccurate under JRUBY.
if defined?(JRUBY_VERSION)
  if ENV["JRUBY_OPTS"].to_s !~ /-Xcli.debug=true/
    warn "Coverage may be inaccurate; Try setting JRUBY_OPTS=\"-Xcli.debug=true --debug\""
    # see https://github.com/metricfu/metric_fu/pull/226
    #     https://github.com/jruby/jruby/issues/1196
    #     https://jira.codehaus.org/browse/JRUBY-6106
    #     https://github.com/colszowka/simplecov/issues/86
  end
end
module SimpleCov
  class << self
    attr_accessor :running
    attr_accessor :pid

    #
    # Sets up SimpleCov to run against your project.
    # You can optionally specify a profile to use as well as configuration with a block:
    #   SimpleCov.start
    #    OR
    #   SimpleCov.start 'rails' # using rails profile
    #    OR
    #   SimpleCov.start do
    #     add_filter 'test'
    #   end
    #     OR
    #   SimpleCov.start 'rails' do
    #     add_filter 'test'
    #   end
    #
    # Please check out the RDoc for SimpleCov::Configuration to find about available config options
    #
    def start(profile = nil, &block)
      if SimpleCov.usable?
        load_profile(profile) if profile
        configure(&block) if block_given?
        @result = nil
        self.running = true
        self.pid = Process.pid
        Coverage.start
      else
        warn "WARNING: SimpleCov is activated, but you're not running Ruby 1.9+ - no coverage analysis will happen"
        warn "Starting with SimpleCov 1.0.0, even no-op compatibility with Ruby <= 1.8 will be entirely dropped."
        false
      end
    end

    #
    # Finds files that were to be tracked but were not loaded and initializes
    # their coverage to zero.
    #
    def add_not_loaded_files(result)
      if @track_files_glob
        result = result.dup
        Dir[@track_files_glob].each do |file|
          absolute = File.expand_path(file)

          result[absolute] ||= [0] * File.foreach(absolute).count
        end
      end

      result
    end

    #
    # Returns the result for the current coverage run, merging it across test suites
    # from cache using SimpleCov::ResultMerger if use_merging is activated (default)
    #
    def result
      @result ||= SimpleCov::Result.new(add_not_loaded_files(Coverage.result)) if running
      # If we're using merging of results, store the current result
      # first, then merge the results and return those
      if use_merging
        SimpleCov::ResultMerger.store_result(@result) if @result
        return SimpleCov::ResultMerger.merged_result
      else
        return @result if defined? @result
      end
    ensure
      self.running = false
    end

    #
    # Returns nil if the result has not been computed
    # Otherwise, returns the result
    #
    def result?
      defined?(@result) && @result
    end

    #
    # Applies the configured filters to the given array of SimpleCov::SourceFile items
    #
    def filtered(files)
      result = files.clone
      filters.each do |filter|
        result = result.reject { |source_file| filter.matches?(source_file) }
      end
      SimpleCov::FileList.new result
    end

    #
    # Applies the configured groups to the given array of SimpleCov::SourceFile items
    #
    def grouped(files)
      grouped = {}
      grouped_files = []
      groups.each do |name, filter|
        grouped[name] = SimpleCov::FileList.new(files.select { |source_file| filter.matches?(source_file) })
        grouped_files += grouped[name]
      end
      if groups.length > 0 && (other_files = files.reject { |source_file| grouped_files.include?(source_file) }).length > 0
        grouped["Ungrouped"] = SimpleCov::FileList.new(other_files)
      end
      grouped
    end

    #
    # Applies the profile of given name on SimpleCov configuration
    #
    def load_profile(name)
      profiles.load(name)
    end

    def load_adapter(name)
      warn "#{Kernel.caller.first}: [DEPRECATION] #load_adapter is deprecated. Use #load_profile instead."
      load_profile(name)
    end

    #
    # Checks whether we're on a proper version of Ruby (likely 1.9+) which
    # provides coverage support
    #
    def usable?
      return @usable if defined?(@usable) && !@usable.nil?

      @usable = begin
        require "coverage"
        require "simplecov/jruby_fix"
        true
      rescue LoadError
        false
      end
    end
  end
end

$LOAD_PATH.unshift(File.join(File.dirname(__FILE__)))
require "simplecov/configuration"
SimpleCov.send :extend, SimpleCov::Configuration
require "simplecov/exit_codes"
require "simplecov/profiles"
require "simplecov/source_file"
require "simplecov/file_list"
require "simplecov/result"
require "simplecov/filter"
require "simplecov/formatter"
require "simplecov/last_run"
require "simplecov/merge_helpers"
require "simplecov/result_merger"
require "simplecov/command_guesser"
require "simplecov/version"

# Load default config
require "simplecov/defaults" unless ENV["SIMPLECOV_NO_DEFAULTS"]

# Load Rails integration (only for Rails 3, see #113)
require "simplecov/railtie" if defined? Rails::Railtie