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How to use msg method of Assertions Package

Best Minitest_ruby code snippet using Assertions.msg

unit.rb

Source:unit.rb

...7module MiniTest8  def self.const_missing name # :nodoc:9    case name10    when :MINI_DIR then11      msg = "MiniTest::MINI_DIR was removed. Don't violate other's internals."12      warn "WAR\NING: #{msg}"13      warn "WAR\NING: Used by #{caller.first}."14      const_set :MINI_DIR, "bad value"15    else16      super17    end18  end19  ##20  # Assertion base class21  class Assertion < Exception; end22  ##23  # Assertion raised when skipping a test24  class Skip < Assertion; end25  class << self26    ##27    # Filter object for backtraces.28    attr_accessor :backtrace_filter29  end30  class BacktraceFilter # :nodoc:31    def filter bt32      return ["No backtrace"] unless bt33      new_bt = []34      unless $DEBUG then35        bt.each do |line|36          break if line =~ /lib\/minitest/37          new_bt << line38        end39        new_bt = bt.reject { |line| line =~ /lib\/minitest/ } if new_bt.empty?40        new_bt = bt.dup if new_bt.empty?41      else42        new_bt = bt.dup43      end44      new_bt45    end46  end47  self.backtrace_filter = BacktraceFilter.new48  def self.filter_backtrace bt # :nodoc:49    backtrace_filter.filter bt50  end51  ##52  # MiniTest Assertions.  All assertion methods accept a +msg+ which is53  # printed if the assertion fails.54  module Assertions55    UNDEFINED = Object.new # :nodoc:56    def UNDEFINED.inspect # :nodoc:57      "UNDEFINED" # again with the rdoc bugs... :(58    end59    ##60    # Returns the diff command to use in #diff. Tries to intelligently61    # figure out what diff to use.62    def self.diff63      @diff = if (RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ &&64                  system("diff.exe", __FILE__, __FILE__)) then65                "diff.exe -u"66              elsif Minitest::Unit::Guard.maglev? then # HACK67                "diff -u"68              elsif system("gdiff", __FILE__, __FILE__)69                "gdiff -u" # solaris and kin suck70              elsif system("diff", __FILE__, __FILE__)71                "diff -u"72              else73                nil74              end unless defined? @diff75      @diff76    end77    ##78    # Set the diff command to use in #diff.79    def self.diff= o80      @diff = o81    end82    ##83    # Returns a diff between +exp+ and +act+. If there is no known84    # diff command or if it doesn't make sense to diff the output85    # (single line, short output), then it simply returns a basic86    # comparison between the two.87    def diff exp, act88      require "tempfile"89      expect = mu_pp_for_diff exp90      butwas = mu_pp_for_diff act91      result = nil92      need_to_diff =93        MiniTest::Assertions.diff &&94        (expect.include?("\n")    ||95         butwas.include?("\n")    ||96         expect.size > 30         ||97         butwas.size > 30         ||98         expect == butwas)99      return "Expected: #{mu_pp exp}\n  Actual: #{mu_pp act}" unless100        need_to_diff101      Tempfile.open("expect") do |a|102        a.puts expect103        a.flush104        Tempfile.open("butwas") do |b|105          b.puts butwas106          b.flush107          result = `#{MiniTest::Assertions.diff} #{a.path} #{b.path}`108          result.sub!(/^\-\-\- .+/, "--- expected")109          result.sub!(/^\+\+\+ .+/, "+++ actual")110          if result.empty? then111            klass = exp.class112            result = [113                      "No visible difference in the #{klass}#inspect output.\n",114                      "You should look at the implementation of #== on ",115                      "#{klass} or its members.\n",116                      expect,117                     ].join118          end119        end120      end121      result122    end123    ##124    # This returns a human-readable version of +obj+. By default125    # #inspect is called. You can override this to use #pretty_print126    # if you want.127    def mu_pp obj128      s = obj.inspect129      s = s.encode Encoding.default_external if defined? Encoding130      s131    end132    ##133    # This returns a diff-able human-readable version of +obj+. This134    # differs from the regular mu_pp because it expands escaped135    # newlines and makes hex-values generic (like object_ids). This136    # uses mu_pp to do the first pass and then cleans it up.137    def mu_pp_for_diff obj138      mu_pp(obj).gsub(/\\n/, "\n").gsub(/:0x[a-fA-F0-9]{4,}/m, ':0xXXXXXX')139    end140    def _assertions= n # :nodoc:141      @_assertions = n142    end143    def _assertions # :nodoc:144      @_assertions ||= 0145    end146    ##147    # Fails unless +test+ is a true value.148    def assert test, msg = nil149      msg ||= "Failed assertion, no message given."150      self._assertions += 1151      unless test then152        msg = msg.call if Proc === msg153        raise MiniTest::Assertion, msg154      end155      true156    end157    ##158    # Fails unless +obj+ is empty.159    def assert_empty obj, msg = nil160      msg = message(msg) { "Expected #{mu_pp(obj)} to be empty" }161      assert_respond_to obj, :empty?162      assert obj.empty?, msg163    end164    ##165    # Fails unless <tt>exp == act</tt> printing the difference between166    # the two, if possible.167    #168    # If there is no visible difference but the assertion fails, you169    # should suspect that your #== is buggy, or your inspect output is170    # missing crucial details.171    #172    # For floats use assert_in_delta.173    #174    # See also: MiniTest::Assertions.diff175    def assert_equal exp, act, msg = nil176      msg = message(msg, "") { diff exp, act }177      assert exp == act, msg178    end179    ##180    # For comparing Floats.  Fails unless +exp+ and +act+ are within +delta+181    # of each other.182    #183    #   assert_in_delta Math::PI, (22.0 / 7.0), 0.01184    def assert_in_delta exp, act, delta = 0.001, msg = nil185      n = (exp - act).abs186      msg = message(msg) {187        "Expected |#{exp} - #{act}| (#{n}) to be <= #{delta}"188      }189      assert delta >= n, msg190    end191    ##192    # For comparing Floats.  Fails unless +exp+ and +act+ have a relative193    # error less than +epsilon+.194    def assert_in_epsilon a, b, epsilon = 0.001, msg = nil195      assert_in_delta a, b, [a.abs, b.abs].min * epsilon, msg196    end197    ##198    # Fails unless +collection+ includes +obj+.199    def assert_includes collection, obj, msg = nil200      msg = message(msg) {201        "Expected #{mu_pp(collection)} to include #{mu_pp(obj)}"202      }203      assert_respond_to collection, :include?204      assert collection.include?(obj), msg205    end206    ##207    # Fails unless +obj+ is an instance of +cls+.208    def assert_instance_of cls, obj, msg = nil209      msg = message(msg) {210        "Expected #{mu_pp(obj)} to be an instance of #{cls}, not #{obj.class}"211      }212      assert obj.instance_of?(cls), msg213    end214    ##215    # Fails unless +obj+ is a kind of +cls+.216    def assert_kind_of cls, obj, msg = nil # TODO: merge with instance_of217      msg = message(msg) {218        "Expected #{mu_pp(obj)} to be a kind of #{cls}, not #{obj.class}" }219      assert obj.kind_of?(cls), msg220    end221    ##222    # Fails unless +matcher+ <tt>=~</tt> +obj+.223    def assert_match matcher, obj, msg = nil224      msg = message(msg) { "Expected #{mu_pp matcher} to match #{mu_pp obj}" }225      assert_respond_to matcher, :"=~"226      matcher = Regexp.new Regexp.escape matcher if String === matcher227      assert matcher =~ obj, msg228    end229    ##230    # Fails unless +obj+ is nil231    def assert_nil obj, msg = nil232      msg = message(msg) { "Expected #{mu_pp(obj)} to be nil" }233      assert obj.nil?, msg234    end235    ##236    # For testing with binary operators.237    #238    #   assert_operator 5, :<=, 4239    def assert_operator o1, op, o2 = UNDEFINED, msg = nil240      return assert_predicate o1, op, msg if UNDEFINED == o2241      msg = message(msg) { "Expected #{mu_pp(o1)} to be #{op} #{mu_pp(o2)}" }242      assert o1.__send__(op, o2), msg243    end244    ##245    # Fails if stdout or stderr do not output the expected results.246    # Pass in nil if you don't care about that streams output. Pass in247    # "" if you require it to be silent. Pass in a regexp if you want248    # to pattern match.249    #250    # NOTE: this uses #capture_io, not #capture_subprocess_io.251    #252    # See also: #assert_silent253    def assert_output stdout = nil, stderr = nil254      out, err = capture_io do255        yield256      end257      err_msg = Regexp === stderr ? :assert_match : :assert_equal if stderr258      out_msg = Regexp === stdout ? :assert_match : :assert_equal if stdout259      y = send err_msg, stderr, err, "In stderr" if err_msg260      x = send out_msg, stdout, out, "In stdout" if out_msg261      (!stdout || x) && (!stderr || y)262    end263    ##264    # For testing with predicates.265    #266    #   assert_predicate str, :empty?267    #268    # This is really meant for specs and is front-ended by assert_operator:269    #270    #   str.must_be :empty?271    def assert_predicate o1, op, msg = nil272      msg = message(msg) { "Expected #{mu_pp(o1)} to be #{op}" }273      assert o1.__send__(op), msg274    end275    ##276    # Fails unless the block raises one of +exp+. Returns the277    # exception matched so you can check the message, attributes, etc.278    def assert_raises *exp279      msg = "#{exp.pop}.\n" if String === exp.last280      begin281        yield282      rescue MiniTest::Skip => e283        return e if exp.include? MiniTest::Skip284        raise e285      rescue Exception => e286        expected = exp.any? { |ex|287          if ex.instance_of? Module then288            e.kind_of? ex289          else290            e.instance_of? ex291          end292        }293        assert expected, proc {294          exception_details(e, "#{msg}#{mu_pp(exp)} exception expected, not")295        }296        return e297      end298      exp = exp.first if exp.size == 1299      flunk "#{msg}#{mu_pp(exp)} expected but nothing was raised."300    end301    ##302    # Fails unless +obj+ responds to +meth+.303    def assert_respond_to obj, meth, msg = nil304      msg = message(msg) {305        "Expected #{mu_pp(obj)} (#{obj.class}) to respond to ##{meth}"306      }307      assert obj.respond_to?(meth), msg308    end309    ##310    # Fails unless +exp+ and +act+ are #equal?311    def assert_same exp, act, msg = nil312      msg = message(msg) {313        data = [mu_pp(act), act.object_id, mu_pp(exp), exp.object_id]314        "Expected %s (oid=%d) to be the same as %s (oid=%d)" % data315      }316      assert exp.equal?(act), msg317    end318    ##319    # +send_ary+ is a receiver, message and arguments.320    #321    # Fails unless the call returns a true value322    # TODO: I should prolly remove this from specs323    def assert_send send_ary, m = nil324      recv, msg, *args = send_ary325      m = message(m) {326        "Expected #{mu_pp(recv)}.#{msg}(*#{mu_pp(args)}) to return true" }327      assert recv.__send__(msg, *args), m328    end329    ##330    # Fails if the block outputs anything to stderr or stdout.331    #332    # See also: #assert_output333    def assert_silent334      assert_output "", "" do335        yield336      end337    end338    ##339    # Fails unless the block throws +sym+340    def assert_throws sym, msg = nil341      default = "Expected #{mu_pp(sym)} to have been thrown"342      caught = true343      catch(sym) do344        begin345          yield346        rescue ThreadError => e       # wtf?!? 1.8 + threads == suck347          default += ", not \:#{e.message[/uncaught throw \`(\w+?)\'/, 1]}"348        rescue ArgumentError => e     # 1.9 exception349          default += ", not #{e.message.split(/ /).last}"350        rescue NameError => e         # 1.8 exception351          default += ", not #{e.name.inspect}"352        end353        caught = false354      end355      assert caught, message(msg) { default }356    end357    ##358    # Captures $stdout and $stderr into strings:359    #360    #   out, err = capture_io do361    #     puts "Some info"362    #     warn "You did a bad thing"363    #   end364    #365    #   assert_match %r%info%, out366    #   assert_match %r%bad%, err367    #368    # NOTE: For efficiency, this method uses StringIO and does not369    # capture IO for subprocesses. Use #capture_subprocess_io for370    # that.371    def capture_io372      require 'stringio'373      captured_stdout, captured_stderr = StringIO.new, StringIO.new374      synchronize do375        orig_stdout, orig_stderr = $stdout, $stderr376        $stdout, $stderr         = captured_stdout, captured_stderr377        begin378          yield379        ensure380          $stdout = orig_stdout381          $stderr = orig_stderr382        end383      end384      return captured_stdout.string, captured_stderr.string385    end386    ##387    # Captures $stdout and $stderr into strings, using Tempfile to388    # ensure that subprocess IO is captured as well.389    #390    #   out, err = capture_subprocess_io do391    #     system "echo Some info"392    #     system "echo You did a bad thing 1>&2"393    #   end394    #395    #   assert_match %r%info%, out396    #   assert_match %r%bad%, err397    #398    # NOTE: This method is approximately 10x slower than #capture_io so399    # only use it when you need to test the output of a subprocess.400    def capture_subprocess_io401      require 'tempfile'402      captured_stdout, captured_stderr = Tempfile.new("out"), Tempfile.new("err")403      synchronize do404        orig_stdout, orig_stderr = $stdout.dup, $stderr.dup405        $stdout.reopen captured_stdout406        $stderr.reopen captured_stderr407        begin408          yield409          $stdout.rewind410          $stderr.rewind411          [captured_stdout.read, captured_stderr.read]412        ensure413          captured_stdout.unlink414          captured_stderr.unlink415          $stdout.reopen orig_stdout416          $stderr.reopen orig_stderr417        end418      end419    end420    ##421    # Returns details for exception +e+422    def exception_details e, msg423      [424       "#{msg}",425       "Class: <#{e.class}>",426       "Message: <#{e.message.inspect}>",427       "---Backtrace---",428       "#{MiniTest::filter_backtrace(e.backtrace).join("\n")}",429       "---------------",430      ].join "\n"431    end432    ##433    # Fails with +msg+434    def flunk msg = nil435      msg ||= "Epic Fail!"436      assert false, msg437    end438    ##439    # Returns a proc that will output +msg+ along with the default message.440    def message msg = nil, ending = ".", &default441      proc {442        msg = msg.call.chomp(".") if Proc === msg443        custom_message = "#{msg}.\n" unless msg.nil? or msg.to_s.empty?444        "#{custom_message}#{default.call}#{ending}"445      }446    end447    ##448    # used for counting assertions449    def pass msg = nil450      assert true451    end452    ##453    # Fails if +test+ is a true value454    def refute test, msg = nil455      msg ||= "Failed refutation, no message given"456      not assert(! test, msg)457    end458    ##459    # Fails if +obj+ is empty.460    def refute_empty obj, msg = nil461      msg = message(msg) { "Expected #{mu_pp(obj)} to not be empty" }462      assert_respond_to obj, :empty?463      refute obj.empty?, msg464    end465    ##466    # Fails if <tt>exp == act</tt>.467    #468    # For floats use refute_in_delta.469    def refute_equal exp, act, msg = nil470      msg = message(msg) {471        "Expected #{mu_pp(act)} to not be equal to #{mu_pp(exp)}"472      }473      refute exp == act, msg474    end475    ##476    # For comparing Floats.  Fails if +exp+ is within +delta+ of +act+.477    #478    #   refute_in_delta Math::PI, (22.0 / 7.0)479    def refute_in_delta exp, act, delta = 0.001, msg = nil480      n = (exp - act).abs481      msg = message(msg) {482        "Expected |#{exp} - #{act}| (#{n}) to not be <= #{delta}"483      }484      refute delta >= n, msg485    end486    ##487    # For comparing Floats.  Fails if +exp+ and +act+ have a relative error488    # less than +epsilon+.489    def refute_in_epsilon a, b, epsilon = 0.001, msg = nil490      refute_in_delta a, b, a * epsilon, msg491    end492    ##493    # Fails if +collection+ includes +obj+.494    def refute_includes collection, obj, msg = nil495      msg = message(msg) {496        "Expected #{mu_pp(collection)} to not include #{mu_pp(obj)}"497      }498      assert_respond_to collection, :include?499      refute collection.include?(obj), msg500    end501    ##502    # Fails if +obj+ is an instance of +cls+.503    def refute_instance_of cls, obj, msg = nil504      msg = message(msg) {505        "Expected #{mu_pp(obj)} to not be an instance of #{cls}"506      }507      refute obj.instance_of?(cls), msg508    end509    ##510    # Fails if +obj+ is a kind of +cls+.511    def refute_kind_of cls, obj, msg = nil # TODO: merge with instance_of512      msg = message(msg) { "Expected #{mu_pp(obj)} to not be a kind of #{cls}" }513      refute obj.kind_of?(cls), msg514    end515    ##516    # Fails if +matcher+ <tt>=~</tt> +obj+.517    def refute_match matcher, obj, msg = nil518      msg = message(msg) {"Expected #{mu_pp matcher} to not match #{mu_pp obj}"}519      assert_respond_to matcher, :"=~"520      matcher = Regexp.new Regexp.escape matcher if String === matcher521      refute matcher =~ obj, msg522    end523    ##524    # Fails if +obj+ is nil.525    def refute_nil obj, msg = nil526      msg = message(msg) { "Expected #{mu_pp(obj)} to not be nil" }527      refute obj.nil?, msg528    end529    ##530    # Fails if +o1+ is not +op+ +o2+. Eg:531    #532    #   refute_operator 1, :>, 2 #=> pass533    #   refute_operator 1, :<, 2 #=> fail534    def refute_operator o1, op, o2 = UNDEFINED, msg = nil535      return refute_predicate o1, op, msg if UNDEFINED == o2536      msg = message(msg) { "Expected #{mu_pp(o1)} to not be #{op} #{mu_pp(o2)}"}537      refute o1.__send__(op, o2), msg538    end539    ##540    # For testing with predicates.541    #542    #   refute_predicate str, :empty?543    #544    # This is really meant for specs and is front-ended by refute_operator:545    #546    #   str.wont_be :empty?547    def refute_predicate o1, op, msg = nil548      msg = message(msg) { "Expected #{mu_pp(o1)} to not be #{op}" }549      refute o1.__send__(op), msg550    end551    ##552    # Fails if +obj+ responds to the message +meth+.553    def refute_respond_to obj, meth, msg = nil554      msg = message(msg) { "Expected #{mu_pp(obj)} to not respond to #{meth}" }555      refute obj.respond_to?(meth), msg556    end557    ##558    # Fails if +exp+ is the same (by object identity) as +act+.559    def refute_same exp, act, msg = nil560      msg = message(msg) {561        data = [mu_pp(act), act.object_id, mu_pp(exp), exp.object_id]562        "Expected %s (oid=%d) to not be the same as %s (oid=%d)" % data563      }564      refute exp.equal?(act), msg565    end566    ##567    # Skips the current test. Gets listed at the end of the run but568    # doesn't cause a failure exit code.569    def skip msg = nil, bt = caller570      msg ||= "Skipped, no message given"571      @skip = true572      raise MiniTest::Skip, msg, bt573    end574    ##575    # Was this testcase skipped? Meant for #teardown.576    def skipped?577      defined?(@skip) and @skip578    end579    ##580    # Takes a block and wraps it with the runner's shared mutex.581    def synchronize582      Minitest::Unit.runner.synchronize do583        yield584      end585    end586  end587  class Unit # :nodoc:588    VERSION = "4.7.5" # :nodoc:589    attr_accessor :report, :failures, :errors, :skips # :nodoc:590    attr_accessor :assertion_count                    # :nodoc:591    attr_writer   :test_count                         # :nodoc:592    attr_accessor :start_time                         # :nodoc:593    attr_accessor :help                               # :nodoc:594    attr_accessor :verbose                            # :nodoc:595    attr_writer   :options                            # :nodoc:596    ##597    # :attr:598    #599    # if true, installs an "INFO" signal handler (only available to BSD and600    # OS X users) which prints diagnostic information about the test run.601    #602    # This is auto-detected by default but may be overridden by custom603    # runners.604    attr_accessor :info_signal605    ##606    # Lazy accessor for options.607    def options608      @options ||= {}609    end610    @@installed_at_exit ||= false611    @@out = $stdout612    @@after_tests = []613    ##614    # A simple hook allowing you to run a block of code after _all_ of615    # the tests are done. Eg:616    #617    #   MiniTest::Unit.after_tests { p $debugging_info }618    def self.after_tests &block619      @@after_tests << block620    end621    ##622    # Registers MiniTest::Unit to run tests at process exit623    def self.autorun624      at_exit {625        # don't run if there was a non-exit exception626        next if $! and not $!.kind_of? SystemExit627        # the order here is important. The at_exit handler must be628        # installed before anyone else gets a chance to install their629        # own, that way we can be assured that our exit will be last630        # to run (at_exit stacks).631        exit_code = nil632        at_exit {633          @@after_tests.reverse_each(&:call)634          exit false if exit_code && exit_code != 0635        }636        exit_code = MiniTest::Unit.new.run ARGV637      } unless @@installed_at_exit638      @@installed_at_exit = true639    end640    ##641    # Returns the stream to use for output.642    def self.output643      @@out644    end645    ##646    # Sets MiniTest::Unit to write output to +stream+.  $stdout is the default647    # output648    def self.output= stream649      @@out = stream650    end651    ##652    # Tells MiniTest::Unit to delegate to +runner+, an instance of a653    # MiniTest::Unit subclass, when MiniTest::Unit#run is called.654    def self.runner= runner655      @@runner = runner656    end657    ##658    # Returns the MiniTest::Unit subclass instance that will be used659    # to run the tests. A MiniTest::Unit instance is the default660    # runner.661    def self.runner662      @@runner ||= self.new663    end664    ##665    # Return all plugins' run methods (methods that start with "run_").666    def self.plugins667      @@plugins ||= (["run_tests"] +668                     public_instance_methods(false).669                     grep(/^run_/).map { |s| s.to_s }).uniq670    end671    ##672    # Return the IO for output.673    def output674      self.class.output675    end676    def puts *a  # :nodoc:677      output.puts(*a)678    end679    def print *a # :nodoc:680      output.print(*a)681    end682    def test_count # :nodoc:683      @test_count ||= 0684    end685    ##686    # Runner for a given +type+ (eg, test vs bench).687    def _run_anything type688      suites = TestCase.send "#{type}_suites"689      return if suites.empty?690      start = Time.now691      puts692      puts "# Running #{type}s:"693      puts694      @test_count, @assertion_count = 0, 0695      sync = output.respond_to? :"sync=" # stupid emacs696      old_sync, output.sync = output.sync, true if sync697      results = _run_suites suites, type698      @test_count      = results.inject(0) { |sum, (tc, _)| sum + tc }699      @assertion_count = results.inject(0) { |sum, (_, ac)| sum + ac }700      output.sync = old_sync if sync701      t = Time.now - start702      puts703      puts704      puts "Finished #{type}s in %.6fs, %.4f tests/s, %.4f assertions/s." %705        [t, test_count / t, assertion_count / t]706      report.each_with_index do |msg, i|707        puts "\n%3d) %s" % [i + 1, msg]708      end709      puts710      status711    end712    ##713    # Runs all the +suites+ for a given +type+.714    #715    # NOTE: this method is redefined in parallel_each.rb, which is716    # loaded if a test-suite calls parallelize_me!.717    def _run_suites suites, type718      suites.map { |suite| _run_suite suite, type }719    end720    ##721    # Run a single +suite+ for a given +type+.722    def _run_suite suite, type723      header = "#{type}_suite_header"724      puts send(header, suite) if respond_to? header725      filter = options[:filter] || '/./'726      filter = Regexp.new $1 if filter =~ /\/(.*)\//727      all_test_methods = suite.send "#{type}_methods"728      filtered_test_methods = all_test_methods.find_all { |m|729        filter === m || filter === "#{suite}##{m}"730      }731      assertions = filtered_test_methods.map { |method|732        inst = suite.new method733        inst._assertions = 0734        print "#{suite}##{method} = " if @verbose735        start_time = Time.now if @verbose736        result = inst.run self737        print "%.2f s = " % (Time.now - start_time) if @verbose738        print result739        puts if @verbose740        inst._assertions741      }742      return assertions.size, assertions.inject(0) { |sum, n| sum + n }743    end744    ##745    # Record the result of a single test. Makes it very easy to gather746    # information. Eg:747    #748    #   class StatisticsRecorder < MiniTest::Unit749    #     def record suite, method, assertions, time, error750    #       # ... record the results somewhere ...751    #     end752    #   end753    #754    #   MiniTest::Unit.runner = StatisticsRecorder.new755    #756    # NOTE: record might be sent more than once per test.  It will be757    # sent once with the results from the test itself.  If there is a758    # failure or error in teardown, it will be sent again with the759    # error or failure.760    def record suite, method, assertions, time, error761    end762    def location e # :nodoc:763      last_before_assertion = ""764      e.backtrace.reverse_each do |s|765        break if s =~ /in .(assert|refute|flunk|pass|fail|raise|must|wont)/766        last_before_assertion = s767      end768      last_before_assertion.sub(/:in .*$/, '')769    end770    ##771    # Writes status for failed test +meth+ in +klass+ which finished with772    # exception +e+773    def puke klass, meth, e774      e = case e775          when MiniTest::Skip then776            @skips += 1777            return "S" unless @verbose778            "Skipped:\n#{klass}##{meth} [#{location e}]:\n#{e.message}\n"779          when MiniTest::Assertion then780            @failures += 1781            "Failure:\n#{klass}##{meth} [#{location e}]:\n#{e.message}\n"782          else783            @errors += 1784            bt = MiniTest::filter_backtrace(e.backtrace).join "\n    "785            "Error:\n#{klass}##{meth}:\n#{e.class}: #{e.message}\n    #{bt}\n"786          end787      @report << e788      e[0, 1]789    end790    def initialize # :nodoc:791      @report = []792      @errors = @failures = @skips = 0793      @verbose = false794      @mutex = defined?(Mutex) ? Mutex.new : nil795      @info_signal = Signal.list['INFO']796    end797    def synchronize # :nodoc:798      if @mutex then799        @mutex.synchronize { yield }800      else801        yield802      end803    end804    def process_args args = [] # :nodoc:805      options = {}806      orig_args = args.dup807      OptionParser.new do |opts|808        opts.banner  = 'minitest options:'809        opts.version = MiniTest::Unit::VERSION810        opts.on '-h', '--help', 'Display this help.' do811          puts opts812          exit813        end814        opts.on '-s', '--seed SEED', Integer, "Sets random seed" do |m|815          options[:seed] = m.to_i816        end817        opts.on '-v', '--verbose', "Verbose. Show progress processing files." do818          options[:verbose] = true819        end820        opts.on '-n', '--name PATTERN', "Filter test names on pattern (e.g. /foo/)" do |a|821          options[:filter] = a822        end823        opts.parse! args824        orig_args -= args825      end826      unless options[:seed] then827        srand828        options[:seed] = srand % 0xFFFF829        orig_args << "--seed" << options[:seed].to_s830      end831      srand options[:seed]832      self.verbose = options[:verbose]833      @help = orig_args.map { |s| s =~ /[\s|&<>$()]/ ? s.inspect : s }.join " "834      options835    end836    ##837    # Begins the full test run. Delegates to +runner+'s #_run method.838    def run args = []839      self.class.runner._run(args)840    end841    ##842    # Top level driver, controls all output and filtering.843    def _run args = []844      args = process_args args # ARGH!! blame test/unit process_args845      self.options.merge! args846      puts "Run options: #{help}"847      self.class.plugins.each do |plugin|848        send plugin849        break unless report.empty?850      end851      return failures + errors if self.test_count > 0 # or return nil...852    rescue Interrupt853      abort 'Interrupted'854    end855    ##856    # Runs test suites matching +filter+.857    def run_tests858      _run_anything :test859    end860    ##861    # Writes status to +io+862    def status io = self.output863      format = "%d tests, %d assertions, %d failures, %d errors, %d skips"864      io.puts format % [test_count, assertion_count, failures, errors, skips]865    end866    ##867    # Provides a simple set of guards that you can use in your tests868    # to skip execution if it is not applicable. These methods are869    # mixed into TestCase as both instance and class methods so you870    # can use them inside or outside of the test methods.871    #872    #   def test_something_for_mri873    #     skip "bug 1234"  if jruby?874    #     # ...875    #   end876    #877    #   if windows? then878    #     # ... lots of test methods ...879    #   end880    module Guard881      ##882      # Is this running on jruby?883      def jruby? platform = RUBY_PLATFORM884        "java" == platform885      end886      ##887      # Is this running on mri?888      def maglev? platform = defined?(RUBY_ENGINE) && RUBY_ENGINE889        "maglev" == platform890      end891      module_function :maglev?892      ##893      # Is this running on mri?894      def mri? platform = RUBY_DESCRIPTION895        /^ruby/ =~ platform896      end897      ##898      # Is this running on rubinius?899      def rubinius? platform = defined?(RUBY_ENGINE) && RUBY_ENGINE900        "rbx" == platform901      end902      ##903      # Is this running on windows?904      def windows? platform = RUBY_PLATFORM905        /mswin|mingw/ =~ platform906      end907    end908    ##909    # Provides before/after hooks for setup and teardown. These are910    # meant for library writers, NOT for regular test authors. See911    # #before_setup for an example.912    module LifecycleHooks913      ##914      # Runs before every test, after setup. This hook is meant for915      # libraries to extend minitest. It is not meant to be used by916      # test developers.917      #918      # See #before_setup for an example.919      def after_setup; end920      ##921      # Runs before every test, before setup. This hook is meant for922      # libraries to extend minitest. It is not meant to be used by923      # test developers.924      #925      # As a simplistic example:926      #927      #   module MyMinitestPlugin928      #     def before_setup929      #       super930      #       # ... stuff to do before setup is run931      #     end932      #933      #     def after_setup934      #       # ... stuff to do after setup is run935      #       super936      #     end937      #938      #     def before_teardown939      #       super940      #       # ... stuff to do before teardown is run941      #     end942      #943      #     def after_teardown944      #       # ... stuff to do after teardown is run945      #       super946      #     end947      #   end948      #949      #   class MiniTest::Unit::TestCase950      #     include MyMinitestPlugin951      #   end952      def before_setup; end953      ##954      # Runs after every test, before teardown. This hook is meant for955      # libraries to extend minitest. It is not meant to be used by956      # test developers.957      #958      # See #before_setup for an example.959      def before_teardown; end960      ##961      # Runs after every test, after teardown. This hook is meant for962      # libraries to extend minitest. It is not meant to be used by963      # test developers.964      #965      # See #before_setup for an example.966      def after_teardown; end967    end968    ##969    # Subclass TestCase to create your own tests. Typically you'll want a970    # TestCase subclass per implementation class.971    #972    # See MiniTest::Assertions973    class TestCase974      include LifecycleHooks975      include Guard976      extend Guard977      attr_reader :__name__ # :nodoc:978      PASSTHROUGH_EXCEPTIONS = [NoMemoryError, SignalException,979                                Interrupt, SystemExit] # :nodoc:980      ##981      # Runs the tests reporting the status to +runner+982      def run runner983        trap "INFO" do984          runner.report.each_with_index do |msg, i|985            warn "\n%3d) %s" % [i + 1, msg]986          end987          warn ''988          time = runner.start_time ? Time.now - runner.start_time : 0989          warn "Current Test: %s#%s %.2fs" % [self.class, self.__name__, time]990          runner.status $stderr991        end if runner.info_signal992        start_time = Time.now993        result = ""994        begin995          @passed = nil996          self.before_setup997          self.setup998          self.after_setup999          self.run_test self.__name__...

test_minitest_reporter.rb

Source:test_minitest_reporter.rb

1require "minitest/autorun"2require "minitest/metametameta"3class TestMinitestReporter < Minitest::Test4  attr_accessor :r, :io5  def new_composite_reporter6    reporter = Minitest::CompositeReporter.new7    reporter << Minitest::SummaryReporter.new(self.io)8    reporter << Minitest::ProgressReporter.new(self.io)9    def reporter.first10      reporters.first11    end12    def reporter.results13      first.results14    end15    def reporter.count16      first.count17    end18    def reporter.assertions19      first.assertions20    end21    reporter22  end23  def setup24    self.io = StringIO.new("")25    self.r  = new_composite_reporter26  end27  def error_test28    unless defined? @et then29      @et = Minitest::Test.new(:woot)30      @et.failures << Minitest::UnexpectedError.new(begin31                                                      raise "no"32                                                    rescue => e33                                                      e34                                                    end)35    end36    @et37  end38  def fail_test39    unless defined? @ft then40      @ft = Minitest::Test.new(:woot)41      @ft.failures <<   begin42                          raise Minitest::Assertion, "boo"43                        rescue Minitest::Assertion => e44                          e45                        end46    end47    @ft48  end49  def passing_test50    @pt ||= Minitest::Test.new(:woot)51  end52  def skip_test53    unless defined? @st then54      @st = Minitest::Test.new(:woot)55      @st.failures << begin56                        raise Minitest::Skip57                      rescue Minitest::Assertion => e58                        e59                      end60    end61    @st62  end63  def test_passed_eh_empty64    assert r.passed?65  end66  def test_passed_eh_failure67    r.results << fail_test68    refute r.passed?69  end70  SKIP_MSG = "\n\nYou have skipped tests. Run with --verbose for details."71  def test_passed_eh_error72    r.start73    r.results << error_test74    refute r.passed?75    r.report76    refute_match SKIP_MSG, io.string77  end78  def test_passed_eh_skipped79    r.start80    r.results << skip_test81    assert r.passed?82    restore_env do83      r.report84    end85    assert_match SKIP_MSG, io.string86  end87  def test_passed_eh_skipped_verbose88    r.first.options[:verbose] = true89    r.start90    r.results << skip_test91    assert r.passed?92    r.report93    refute_match SKIP_MSG, io.string94  end95  def test_start96    r.start97    exp = "Run options: \n\n# Running:\n\n"98    assert_equal exp, io.string99  end100  def test_record_pass101    r.record passing_test102    assert_equal ".", io.string103    assert_empty r.results104    assert_equal 1, r.count105    assert_equal 0, r.assertions106  end107  def test_record_fail108    r.record fail_test109    assert_equal "F", io.string110    assert_equal [fail_test], r.results111    assert_equal 1, r.count112    assert_equal 0, r.assertions113  end114  def test_record_error115    r.record error_test116    assert_equal "E", io.string117    assert_equal [error_test], r.results118    assert_equal 1, r.count119    assert_equal 0, r.assertions120  end121  def test_record_skip122    r.record skip_test123    assert_equal "S", io.string124    assert_equal [skip_test], r.results125    assert_equal 1, r.count126    assert_equal 0, r.assertions127  end128  def normalize_output output129    output.sub!(/Finished in .*/, "Finished in 0.00")130    output.sub!(/Loaded suite .*/, 'Loaded suite blah')131    output.gsub!(/ = \d+.\d\d s = /, ' = 0.00 s = ')132    output.gsub!(/0x[A-Fa-f0-9]+/, '0xXXX')133    output.gsub!(/ +$/, '')134    if windows? then135      output.gsub!(/\[(?:[A-Za-z]:)?[^\]:]+:\d+\]/, '[FILE:LINE]')136      output.gsub!(/^(\s+)(?:[A-Za-z]:)?[^:]+:\d+:in/, '\1FILE:LINE:in')137    else138      output.gsub!(/\[[^\]:]+:\d+\]/, '[FILE:LINE]')139      output.gsub!(/^(\s+)[^:]+:\d+:in/, '\1FILE:LINE:in')140    end141    output142  end143  def test_report_empty144    r.start145    r.report146    exp = clean <<-EOM147      Run options:148      # Running:149      Finished in 0.00150      0 runs, 0 assertions, 0 failures, 0 errors, 0 skips151    EOM152    assert_equal exp, normalize_output(io.string)153  end154  def test_report_passing155    r.start156    r.record passing_test157    r.report158    exp = clean <<-EOM159      Run options:160      # Running:161      .162      Finished in 0.00163      1 runs, 0 assertions, 0 failures, 0 errors, 0 skips164    EOM165    assert_equal exp, normalize_output(io.string)166  end167  def test_report_failure168    r.start169    r.record fail_test170    r.report171    exp = clean <<-EOM172      Run options:173      # Running:174      F175      Finished in 0.00176        1) Failure:177      Minitest::Test#woot [FILE:LINE]:178      boo179      1 runs, 0 assertions, 1 failures, 0 errors, 0 skips180    EOM181    assert_equal exp, normalize_output(io.string)182  end183  def test_report_error184    r.start185    r.record error_test186    r.report187    exp = clean <<-EOM188      Run options:189      # Running:190      E191      Finished in 0.00192        1) Error:193      Minitest::Test#woot:194      RuntimeError: no195          FILE:LINE:in `error_test'196          FILE:LINE:in `test_report_error'197      1 runs, 0 assertions, 0 failures, 1 errors, 0 skips198    EOM199    assert_equal exp, normalize_output(io.string)200  end201  def restore_env202    old_value = ENV["MT_NO_SKIP_MSG"]203    ENV.delete "MT_NO_SKIP_MSG"204    205    yield206  ensure207    ENV["MT_NO_SKIP_MSG"] = old_value208  end209  def test_report_skipped210    r.start211    r.record skip_test212    restore_env do213      r.report214    end215    exp = clean <<-EOM216      Run options:217      # Running:218      S219      Finished in 0.00220      1 runs, 0 assertions, 0 failures, 0 errors, 1 skips221      You have skipped tests. Run with --verbose for details.222    EOM223    assert_equal exp, normalize_output(io.string)224  end225end...

msg

Using AI Code Generation

1assert(true, "This should be true")2assert_block("This should be true") { true }3assert_equal(1, 1, "This should be true")4assert_not_equal(1, 2, "This should be true")5assert_in_delta(1, 1.1, 0.2, "This should be true")6assert_in_epsilon(1, 1.1, 0.2, "This should be true")7assert_includes([1,2,3], 2, "This should be true")8assert_instance_of(String, "Hello, World!", "This should be true")

msg

Using AI Code Generation

1    assert_equal(4, msg.length, "Length of message is not 4")2    assert_equal(4, msg.length, "Length of message is not 4")3    assert_equal(4, msg.length, "Length of message is not 4")4    assert_equal(4, msg.length, "Length of message is not 4")5    assert_equal(4, msg.length, "Length of message is not 4")6    assert_equal(4, msg.length, "Length of message is not 4")7    assert_equal(4, msg.length, "Length of message is not 4")8    assert_equal(4, msg.length, "Length of message is not 4")

msg

Using AI Code Generation

1Assertions.msg("Hello World")2Assertions::msg("Hello World")3Assertions.new.msg("Hello World")4Assertions::msg("Hello World")

msg

Using AI Code Generation

1assert(true, "This should be true")2assert_block("This should be true") { true }3assert_equal(1, 1, "This should be true")4assert_not_equal(1, 2, "This should be true")5assert_in_delta(1, 1.1, 0.2, "This should be true")6assert_in_epsilon(1, 1.1, 0.2, "This should be true")7assert_includes([1,2,3], 2, "This should be true")8assert_instance_of(String, "Hello, World!", "This should be true")

msg

Using AI Code Generation

1    assert_equal(4, msg.length, "Length of message is not 4")2    assert_equal(4, msg.length, "Length of message is not 4")3    assert_equal(4, msg.length, "Length of message is not 4")4    assert_equal(4, msg.length, "Length of message is not 4")5    assert_equal(4, msg.length, "Length of message is not 4")6    assert_equal(4, msg.length, "Length of message is not 4")7    assert_equal(4, msg.length, "Length of message is not 4")8    assert_equal(4, msg.length, "Length of message is not 4")

msg

Using AI Code Generation

1Assertions.msg("Hello World")2Assertions::msg("Hello World")3Assertions.new.msg("Hello World")4Assertions::msg("Hello World")

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