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How to use bt method of Reportable Package

Best Minitest_ruby code snippet using Reportable.bt

minitest.rb

Source:minitest.rb

...176      s =~ /[\s|&<>$()]/ ? s.inspect : s177    }.join " "178    options179  end180  def self.filter_backtrace bt # :nodoc:181    backtrace_filter.filter bt182  end183  ##184  # Represents anything "runnable", like Test, Spec, Benchmark, or185  # whatever you can dream up.186  #187  # Subclasses of this are automatically registered and available in188  # Runnable.runnables.189  class Runnable190    ##191    # Number of assertions executed in this run.192    attr_accessor :assertions193    ##194    # An assertion raised during the run, if any.195    attr_accessor :failures196    ##197    # The time it took to run.198    attr_accessor :time199    def time_it # :nodoc:200      t0 = Minitest.clock_time201      yield202    ensure203      self.time = Minitest.clock_time - t0204    end205    ##206    # Name of the run.207    def name208      @NAME209    end210    ##211    # Set the name of the run.212    def name= o213      @NAME = o214    end215    ##216    # Returns all instance methods matching the pattern +re+.217    def self.methods_matching re218      public_instance_methods(true).grep(re).map(&:to_s)219    end220    def self.reset # :nodoc:221      @@runnables = []222    end223    reset224    ##225    # Responsible for running all runnable methods in a given class,226    # each in its own instance. Each instance is passed to the227    # reporter to record.228    def self.run reporter, options = {}229      filter = options[:filter] || "/./"230      filter = Regexp.new $1 if filter =~ %r%/(.*)/%231      filtered_methods = self.runnable_methods.find_all { |m|232        filter === m || filter === "#{self}##{m}"233      }234      exclude = options[:exclude]235      exclude = Regexp.new $1 if exclude =~ %r%/(.*)/%236      filtered_methods.delete_if { |m|237        exclude === m || exclude === "#{self}##{m}"238      }239      return if filtered_methods.empty?240      with_info_handler reporter do241        filtered_methods.each do |method_name|242          run_one_method self, method_name, reporter243        end244      end245    end246    ##247    # Runs a single method and has the reporter record the result.248    # This was considered internal API but is factored out of run so249    # that subclasses can specialize the running of an individual250    # test. See Minitest::ParallelTest::ClassMethods for an example.251    def self.run_one_method klass, method_name, reporter252      reporter.prerecord klass, method_name253      reporter.record Minitest.run_one_method(klass, method_name)254    end255    def self.with_info_handler reporter, &block # :nodoc:256      handler = lambda do257        unless reporter.passed? then258          warn "Current results:"259          warn ""260          warn reporter.reporters.first261          warn ""262        end263      end264      on_signal ::Minitest.info_signal, handler, &block265    end266    SIGNALS = Signal.list # :nodoc:267    def self.on_signal name, action # :nodoc:268      supported = SIGNALS[name]269      old_trap = trap name do270        old_trap.call if old_trap.respond_to? :call271        action.call272      end if supported273      yield274    ensure275      trap name, old_trap if supported276    end277    ##278    # Each subclass of Runnable is responsible for overriding this279    # method to return all runnable methods. See #methods_matching.280    def self.runnable_methods281      raise NotImplementedError, "subclass responsibility"282    end283    ##284    # Returns all subclasses of Runnable.285    def self.runnables286      @@runnables287    end288    @@marshal_dump_warned = false289    def marshal_dump # :nodoc:290      unless @@marshal_dump_warned then291        warn ["Minitest::Runnable#marshal_dump is deprecated.",292              "You might be violating internals. From", caller.first].join " "293        @@marshal_dump_warned = true294      end295      [self.name, self.failures, self.assertions, self.time]296    end297    def marshal_load ary # :nodoc:298      self.name, self.failures, self.assertions, self.time = ary299    end300    def failure # :nodoc:301      self.failures.first302    end303    def initialize name # :nodoc:304      self.name       = name305      self.failures   = []306      self.assertions = 0307    end308    ##309    # Runs a single method. Needs to return self.310    def run311      raise NotImplementedError, "subclass responsibility"312    end313    ##314    # Did this run pass?315    #316    # Note: skipped runs are not considered passing, but they don't317    # cause the process to exit non-zero.318    def passed?319      raise NotImplementedError, "subclass responsibility"320    end321    ##322    # Returns a single character string to print based on the result323    # of the run. Eg ".", "F", or "E".324    def result_code325      raise NotImplementedError, "subclass responsibility"326    end327    ##328    # Was this run skipped? See #passed? for more information.329    def skipped?330      raise NotImplementedError, "subclass responsibility"331    end332  end333  ##334  # Shared code for anything that can get passed to a Reporter. See335  # Minitest::Test & Minitest::Result.336  module Reportable337    ##338    # Did this run pass?339    #340    # Note: skipped runs are not considered passing, but they don't341    # cause the process to exit non-zero.342    def passed?343      not self.failure344    end345    ##346    # The location identifier of this test. Depends on a method347    # existing called class_name.348    def location349      loc = " [#{self.failure.location}]" unless passed? or error?350      "#{self.class_name}##{self.name}#{loc}"351    end352    def class_name # :nodoc:353      raise NotImplementedError, "subclass responsibility"354    end355    ##356    # Returns ".", "F", or "E" based on the result of the run.357    def result_code358      self.failure and self.failure.result_code or "."359    end360    ##361    # Was this run skipped?362    def skipped?363      self.failure and Skip === self.failure364    end365    ##366    # Did this run error?367    def error?368      self.failures.any? { |f| UnexpectedError === f }369    end370  end371  ##372  # This represents a test result in a clean way that can be373  # marshalled over a wire. Tests can do anything they want to the374  # test instance and can create conditions that cause Marshal.dump to375  # blow up. By using Result.from(a_test) you can be reasonably sure376  # that the test result can be marshalled.377  class Result < Runnable378    include Minitest::Reportable379    undef_method :marshal_dump380    undef_method :marshal_load381    ##382    # The class name of the test result.383    attr_accessor :klass384    ##385    # The location of the test method.386    attr_accessor :source_location387    ##388    # Create a new test result from a Runnable instance.389    def self.from runnable390      o = runnable391      r = self.new o.name392      r.klass      = o.class.name393      r.assertions = o.assertions394      r.failures   = o.failures.dup395      r.time       = o.time396      r.source_location = o.method(o.name).source_location rescue ["unknown", -1]397      r398    end399    def class_name # :nodoc:400      self.klass # for Minitest::Reportable401    end402    def to_s # :nodoc:403      return location if passed? and not skipped?404      failures.map { |failure|405        "#{failure.result_label}:\n#{self.location}:\n#{failure.message}\n"406      }.join "\n"407    end408  end409  ##410  # Defines the API for Reporters. Subclass this and override whatever411  # you want. Go nuts.412  class AbstractReporter413    include Mutex_m414    ##415    # Starts reporting on the run.416    def start417    end418    ##419    # About to start running a test. This allows a reporter to show420    # that it is starting or that we are in the middle of a test run.421    def prerecord klass, name422    end423    ##424    # Record a result and output the Runnable#result_code. Stores the425    # result of the run if the run did not pass.426    def record result427    end428    ##429    # Outputs the summary of the run.430    def report431    end432    ##433    # Did this run pass?434    def passed?435      true436    end437  end438  class Reporter < AbstractReporter # :nodoc:439    ##440    # The IO used to report.441    attr_accessor :io442    ##443    # Command-line options for this run.444    attr_accessor :options445    def initialize io = $stdout, options = {} # :nodoc:446      super()447      self.io      = io448      self.options = options449    end450  end451  ##452  # A very simple reporter that prints the "dots" during the run.453  #454  # This is added to the top-level CompositeReporter at the start of455  # the run. If you want to change the output of minitest via a456  # plugin, pull this out of the composite and replace it with your457  # own.458  class ProgressReporter < Reporter459    def prerecord klass, name #:nodoc:460      if options[:verbose] then461        io.print "%s#%s = " % [klass.name, name]462        io.flush463      end464    end465    def record result # :nodoc:466      io.print "%.2f s = " % [result.time] if options[:verbose]467      io.print result.result_code468      io.puts if options[:verbose]469    end470  end471  ##472  # A reporter that gathers statistics about a test run. Does not do473  # any IO because meant to be used as a parent class for a reporter474  # that does.475  #476  # If you want to create an entirely different type of output (eg,477  # CI, HTML, etc), this is the place to start.478  class StatisticsReporter < Reporter479    # :stopdoc:480    attr_accessor :assertions481    attr_accessor :count482    attr_accessor :results483    attr_accessor :start_time484    attr_accessor :total_time485    attr_accessor :failures486    attr_accessor :errors487    attr_accessor :skips488    # :startdoc:489    def initialize io = $stdout, options = {} # :nodoc:490      super491      self.assertions = 0492      self.count      = 0493      self.results    = []494      self.start_time = nil495      self.total_time = nil496      self.failures   = nil497      self.errors     = nil498      self.skips      = nil499    end500    def passed? # :nodoc:501      results.all?(&:skipped?)502    end503    def start # :nodoc:504      self.start_time = Minitest.clock_time505    end506    def record result # :nodoc:507      self.count += 1508      self.assertions += result.assertions509      results << result if not result.passed? or result.skipped?510    end511    def report # :nodoc:512      aggregate = results.group_by { |r| r.failure.class }513      aggregate.default = [] # dumb. group_by should provide this514      self.total_time = Minitest.clock_time - start_time515      self.failures   = aggregate[Assertion].size516      self.errors     = aggregate[UnexpectedError].size517      self.skips      = aggregate[Skip].size518    end519  end520  ##521  # A reporter that prints the header, summary, and failure details at522  # the end of the run.523  #524  # This is added to the top-level CompositeReporter at the start of525  # the run. If you want to change the output of minitest via a526  # plugin, pull this out of the composite and replace it with your527  # own.528  class SummaryReporter < StatisticsReporter529    # :stopdoc:530    attr_accessor :sync531    attr_accessor :old_sync532    # :startdoc:533    def start # :nodoc:534      super535      io.puts "Run options: #{options[:args]}"536      io.puts537      io.puts "# Running:"538      io.puts539      self.sync = io.respond_to? :"sync=" # stupid emacs540      self.old_sync, io.sync = io.sync, true if self.sync541    end542    def report # :nodoc:543      super544      io.sync = self.old_sync545      io.puts unless options[:verbose] # finish the dots546      io.puts547      io.puts statistics548      aggregated_results io549      io.puts summary550    end551    def statistics # :nodoc:552      "Finished in %.6fs, %.4f runs/s, %.4f assertions/s." %553        [total_time, count / total_time, assertions / total_time]554    end555    def aggregated_results io # :nodoc:556      filtered_results = results.dup557      filtered_results.reject!(&:skipped?) unless options[:verbose]558      filtered_results.each_with_index { |result, i|559        io.puts "\n%3d) %s" % [i+1, result]560      }561      io.puts562      io563    end564    def to_s # :nodoc:565      aggregated_results(StringIO.new(binary_string)).string566    end567    def summary # :nodoc:568      extra = ""569      extra = "\n\nYou have skipped tests. Run with --verbose for details." if570        results.any?(&:skipped?) unless options[:verbose] or ENV["MT_NO_SKIP_MSG"]571      "%d runs, %d assertions, %d failures, %d errors, %d skips%s" %572        [count, assertions, failures, errors, skips, extra]573    end574    private575    if '<3'.respond_to? :b576      def binary_string; ''.b; end577    else578      def binary_string; ''.force_encoding(Encoding::ASCII_8BIT); end579    end580  end581  ##582  # Dispatch to multiple reporters as one.583  class CompositeReporter < AbstractReporter584    ##585    # The list of reporters to dispatch to.586    attr_accessor :reporters587    def initialize *reporters # :nodoc:588      super()589      self.reporters = reporters590    end591    def io # :nodoc:592      reporters.first.io593    end594    ##595    # Add another reporter to the mix.596    def << reporter597      self.reporters << reporter598    end599    def passed? # :nodoc:600      self.reporters.all?(&:passed?)601    end602    def start # :nodoc:603      self.reporters.each(&:start)604    end605    def prerecord klass, name # :nodoc:606      self.reporters.each do |reporter|607        # TODO: remove conditional for minitest 6608        reporter.prerecord klass, name if reporter.respond_to? :prerecord609      end610    end611    def record result # :nodoc:612      self.reporters.each do |reporter|613        reporter.record result614      end615    end616    def report # :nodoc:617      self.reporters.each(&:report)618    end619  end620  ##621  # Represents run failures.622  class Assertion < Exception623    def error # :nodoc:624      self625    end626    ##627    # Where was this run before an assertion was raised?628    def location629      last_before_assertion = ""630      self.backtrace.reverse_each do |s|631        break if s =~ /in .(assert|refute|flunk|pass|fail|raise|must|wont)/632        last_before_assertion = s633      end634      last_before_assertion.sub(/:in .*$/, "")635    end636    def result_code # :nodoc:637      result_label[0, 1]638    end639    def result_label # :nodoc:640      "Failure"641    end642  end643  ##644  # Assertion raised when skipping a run.645  class Skip < Assertion646    def result_label # :nodoc:647      "Skipped"648    end649  end650  ##651  # Assertion wrapping an unexpected error that was raised during a run.652  class UnexpectedError < Assertion653    attr_accessor :exception # :nodoc:654    def initialize exception # :nodoc:655      super "Unexpected exception"656      self.exception = exception657    end658    def backtrace # :nodoc:659      self.exception.backtrace660    end661    def error # :nodoc:662      self.exception663    end664    def message # :nodoc:665      bt = Minitest.filter_backtrace(self.backtrace).join "\n    "666      "#{self.exception.class}: #{self.exception.message}\n    #{bt}"667    end668    def result_label # :nodoc:669      "Error"670    end671  end672  ##673  # Provides a simple set of guards that you can use in your tests674  # to skip execution if it is not applicable. These methods are675  # mixed into Test as both instance and class methods so you676  # can use them inside or outside of the test methods.677  #678  #   def test_something_for_mri679  #     skip "bug 1234"  if jruby?680  #     # ...681  #   end682  #683  #   if windows? then684  #     # ... lots of test methods ...685  #   end686  module Guard687    ##688    # Is this running on jruby?689    def jruby? platform = RUBY_PLATFORM690      "java" == platform691    end692    ##693    # Is this running on maglev?694    def maglev? platform = defined?(RUBY_ENGINE) && RUBY_ENGINE695      "maglev" == platform696    end697    ##698    # Is this running on mri?699    def mri? platform = RUBY_DESCRIPTION700      /^ruby/ =~ platform701    end702    ##703    # Is this running on rubinius?704    def rubinius? platform = defined?(RUBY_ENGINE) && RUBY_ENGINE705      "rbx" == platform706    end707    ##708    # Is this running on windows?709    def windows? platform = RUBY_PLATFORM710      /mswin|mingw/ =~ platform711    end712  end713  ##714  # The standard backtrace filter for minitest.715  #716  # See Minitest.backtrace_filter=.717  class BacktraceFilter718    MT_RE = %r%lib/minitest% #:nodoc:719    ##720    # Filter +bt+ to something useful. Returns the whole thing if $DEBUG.721    def filter bt722      return ["No backtrace"] unless bt723      return bt.dup if $DEBUG724      new_bt = bt.take_while { |line| line !~ MT_RE }725      new_bt = bt.select     { |line| line !~ MT_RE } if new_bt.empty?726      new_bt = bt.dup                                 if new_bt.empty?727      new_bt728    end729  end730  self.backtrace_filter = BacktraceFilter.new731  def self.run_one_method klass, method_name # :nodoc:732    result = klass.new(method_name).run733    raise "#{klass}#run _must_ return a Result" unless Result === result734    result735  end736  # :stopdoc:737  if defined? Process::CLOCK_MONOTONIC # :nodoc:738    def self.clock_time739      Process.clock_gettime Process::CLOCK_MONOTONIC740    end741  else...

error.rb

Source:error.rb

...55      self.class.name56    end57    def inner_backtrace58      return [] unless cause59      bt = cause.backtrace_locations60      ignored_bt = backtrace_locations61      while bt.last.to_s == ignored_bt.last.to_s62        bt.pop63        ignored_bt.pop64      end65      while bt.last.path == ignored_bt.last.path66        bt.pop67      end68      bt69    end70  end71  include Impl72  def initialize(**context)73    set_context context74    super message75  end76end77class Gel::LoadError < ::LoadError78  include Gel::UserError::Impl79  def initialize(**context)80    set_context context81    super message82  end...

test.rb

Source:test.rb

...168    rescue TypeError169      neuter_exception e170    end171    def neuter_exception e172      bt = e.backtrace173      msg = e.message.dup174      new_exception e.class, msg, bt            # e.class can be a problem...175    rescue TypeError176      msg.prepend "Neutered Exception #{e.class}: "177      new_exception RuntimeError, msg, bt       # but if this raises, we die178    end179    def new_exception klass, msg, bt180      ne = klass.new msg181      ne.set_backtrace bt182      Marshal.dump ne                           # can raise TypeError183      ne184    end185    def with_info_handler &block # :nodoc:186      t0 = Minitest.clock_time187      handler = lambda do188        warn "\nCurrent: %s#%s %.2fs" % [self.class, self.name, Minitest.clock_time - t0]189      end190      self.class.on_signal ::Minitest.info_signal, handler, &block191    end192    include LifecycleHooks193    include Guard194    extend Guard195  end # Test...

Using AI Code Generation

1  def initialize(name, age)2p = Person.new("Evan", 30)3The caller method accepts an optional parameter, which is the number of calls to include in the array. If you call caller(0) , it returns the entire backtrace. If you call caller(1) , it returns a backtrace that is one call long. If you call caller(2) , it returns a backtrace that is two calls long, and so on. The following program demonstrates this:4  def initialize(name, age)5p = Person.new("Evan", 30)

Using AI Code Generation

1p = Person.new("Evan", 30)2The caller method accepts an optional parameter, which is the number of calls to include in the array. If you call caller(0) , it returns the entire backtrace. If you call caller(1) , it returns a backtrace that is one call long. If you call caller(2) , it returns a backtrace that is two calls long, and so on. The following program demonstrates this:3  def initialize(name, age)4p = Person.new("Evan", 30)

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