Module: Covet::TestRunners::Minitest

Defined in:
lib/covet/test_runners/minitest.rb

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.create_collection_file_on_exit ⇒ Object

Returns the value of attribute create_collection_file_on_exit.



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# File 'lib/covet/test_runners/minitest.rb', line 9

def create_collection_file_on_exit
  @create_collection_file_on_exit
end

Class Method Details

.cmdline_for_run_list(run_list) ⇒ Object 



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# File 'lib/covet/test_runners/minitest.rb', line 137

def self.cmdline_for_run_list(run_list)
  files = run_list.map { |double| double[1].split('#').first }
  files.uniq!

  files_str = files.map { |fname| %Q("#{fname}") }.join(' ')
  rake_testtask = Rake::TestTask.new
  rake_loader_str = rake_testtask.rake_loader
  rake_include_arg = %Q(-I"#{rake_testtask.rake_lib_dir}")

  cmd = %Q(ruby -I"test" -I"lib" #{rake_include_arg} "#{rake_loader_str}" ) +
    files_str

  unless Covet.options[:disable_test_method_filter]
    test_methods = run_list.map { |double| double[1].split('#').last }
    test_methods.uniq!
    test_methods_regex = Regexp.union(test_methods)
    cmd << %Q( "-n #{test_methods_regex.inspect}")
  end
  cmd
end

.hook_into_test_methods! ⇒ Object 



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# File 'lib/covet/test_runners/minitest.rb', line 12

def self.hook_into_test_methods!
  if @covet_hooked
    warn "Warning - Covet.register_coverage_collection! called multiple times"
    return
  end
  gem 'minitest'
  require 'minitest'

  ::Minitest.after_run do
    after_t = Time.now
    diff_t = after_t - ::Minitest::Runnable.covet_start_time
    time_taken = sprintf("%.2f", diff_t)
    Covet.log_collection << ['stats', {
      :time_taken => time_taken,
      :files_filtered => CollectionFilter.files_filtered,
    }]
    if Covet::TestRunners::Minitest.create_collection_file_on_exit
      Covet.log_collection.finish!
    else
      $stderr.puts "Covet: skipped writing to collection file"
    end
  end

  ::Minitest::Runnable.class_eval do
    @@covet_run_num = 0
    @@covet_skips = 0
    @@covet_failures = 0
    @@covet_start_time = nil

    class << self
      def covet_start_time
        @@covet_start_time
      end

      alias :covet_old_run_one_method :run_one_method

      def run_one_method(klass, method_name, reporter)
        # first run, collect coverage 'base' coverage information
        # (coverage information for before any tests get run).
        if @@covet_run_num == 0
          @@covet_start_time = Time.now
          base_coverage = CovetCoverage.peek_result
          base_coverage = Covet.normalize_coverage_info(base_coverage)
          if base_coverage.empty?
            warn "Warning - covet is not properly set up, as it must be required " \
              "before other libraries to work correctly.\nTry adding\n  require 'covet'\n" \
              "to the top of your test helper file."
          end
          Covet::BASE_COVERAGE.update base_coverage
          # TODO: save Random::DEFAULT.seed in run log file if Covet.options[:test_order] == :random_seeded,
          # then we can run the methods in the same order as before.
          Covet.log_collection << ['base', base_coverage, {
            :version => Covet::VERSION,
            :options => Covet.options,
            :seed => Random::DEFAULT.seed,
          }]
        end

        @@covet_run_num += 1
        file = nil
        begin
          file = klass.instance_method(method_name).source_location[0]
        rescue
          warn "\nWarning - Skipping collecting test coverage for method #{klass}##{method_name}\n"
          return
        end

        before = CovetCoverage.peek_result

        # Run test method
        before_t = Time.now
        result = covet_old_run_one_method(klass, method_name, reporter)
        after_t = Time.now

        summary_reporter = result.first
        skips = summary_reporter.results.select(&:skipped?).size

        # test was skipped, don't record coverage info
        if @@covet_skips != skips
          @@covet_skips = skips
          @@covet_failures += 1
          return result
        end

        # test failed, don't record coverage info
        failures = summary_reporter.results.select(&:failures).size
        if @@covet_failures != failures
          @@covet_failures = failures
          return result
        end

        after = CovetCoverage.peek_result

        before_orig = Covet.normalize_coverage_info(before)
        if Covet::BASE_COVERAGE.any?
          before = Covet.diff_coverages(Covet::BASE_COVERAGE, before_orig)
        end

        after_orig = Covet.normalize_coverage_info(after)
        after = Covet.diff_coverages(before_orig, after_orig)
        if @@covet_run_num > 1
          if [:random_seeded, :ordered].include?(Covet.options[:test_order])
            Covet::BASE_COVERAGE.update(after_orig)
          end
        end

        if after == before
          after = nil
        end
        Covet.log_collection << ["#{file}##{method_name}", after, {
          :time => sprintf("%.2f", after_t - before_t),
        }]
        result
      # NOTE: if the interrupt is fired outside of `Minitest.run_one_method`, then the
      # collection file gets logged even on interrupt :(
      rescue Interrupt
        Covet::TestRunners::Minitest.create_collection_file_on_exit = false
        raise
      end

    end
  end
  @covet_hooked = true
end