Class: Kensho::Cucumber::Formatter

Inherits:
Object
  • Object
show all
Defined in:
lib/kensho/cucumber/formatter.rb

Constant Summary collapse

SEVERITY_TAGS = 
Kensho::Schema::SEVERITY.dup.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Formatter

Returns a new instance of Formatter.



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# File 'lib/kensho/cucumber/formatter.rb', line 40

def initialize(config)
  @config = config
  @ast_lookup = nil
  if defined?(::Cucumber::Formatter::AstLookup)
    begin
      @ast_lookup = ::Cucumber::Formatter::AstLookup.new(config)
    rescue StandardError
      @ast_lookup = nil
    end
  end
  @output_dir = File.expand_path(ENV['KENSHO_OUTPUT'] || (defined?(Kensho::Cucumber::DEFAULT_OUTPUT) ? Kensho::Cucumber::DEFAULT_OUTPUT : 'kensho-results'))
  @cases_dir = File.join(@output_dir, 'cases')
  @attachments_dir = File.join(@output_dir, 'attachments')
  @project = {
    'name' => ENV['KENSHO_PROJECT_NAME'] || 'Unknown project',
    'slug' => ENV['KENSHO_PROJECT_SLUG'] || Kensho::Schema.slugify(ENV['KENSHO_PROJECT_NAME'] || 'unknown')
  }
  @run_id = ENV['KENSHO_RUN_ID'] || Kensho::Schema.default_run_id
  @started_at = Kensho::Schema.iso_now
  @started_perf = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  @rootpath = Dir.pwd
  @cases_by_id = {}
  @ids_seen = Hash.new(0)

  # Per-test-case scratch keyed by test_case (Cucumber's TestCase obj).
  @scratch = {}

  FileUtils.mkdir_p(@cases_dir)
  FileUtils.mkdir_p(@attachments_dir)

  bind_events!
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/kensho/cucumber/formatter.rb', line 38

def config
  @config
end

Instance Method Details

#bind_events! ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 73

def bind_events!
  return unless @config.respond_to?(:on_event)

  @config.on_event(:test_case_started)  { |event| on_test_case_started(event) }
  @config.on_event(:test_step_finished) { |event| on_test_step_finished(event) }
  @config.on_event(:test_case_finished) { |event| on_test_case_finished(event) }
  @config.on_event(:test_run_finished)  { |_event| on_test_run_finished }
end

#cucumber_version ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 461

def cucumber_version
  if defined?(::Cucumber::VERSION)
    ::Cucumber::VERSION.to_s
  else
    'unknown'
  end
end

#duration_ms_from_result(result) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 418

def duration_ms_from_result(result)
  return 0 unless result.respond_to?(:duration) && result.duration

  d = result.duration
  if d.respond_to?(:nanoseconds)
    (d.nanoseconds / 1_000_000.0).round
  elsif d.respond_to?(:to_f)
    (d.to_f * 1000.0).round
  else
    0
  end
end

#feature_and_rule(test_case) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 311

def feature_and_rule(test_case)
  feature = nil
  rule = nil
  if @ast_lookup
    uri = test_case.location.file rescue nil
    if uri
      doc = nil
      begin
        doc = @ast_lookup.gherkin_document(uri)
      rescue StandardError
        doc = nil
      end
      if doc && doc.respond_to?(:feature) && doc.feature
        feature = doc.feature.name.to_s if doc.feature.respond_to?(:name)
        rule = walk_for_rule(doc.feature, test_case.location.lines.max) if doc.feature.respond_to?(:children)
      end
    end
  end
  [feature, rule]
end

#labels_from_tags(tags) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 364

def labels_from_tags(tags)
  labels = {}
  tags.each do |t|
    next unless t.start_with?('kensho.label.')

    rest = t.sub('kensho.label.', '')
    key, value = rest.split('=', 2)
    next if key.nil? || key.empty?

    labels[key] = (value || 'true').to_s
  end
  labels
end

#links_from_tags(tags) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 378

def links_from_tags(tags)
  links = []
  tags.each do |t|
    if t.start_with?('kensho.url.')
      rest = t.sub('kensho.url.', '')
      kind, url = rest.split('=', 2)
      next if url.nil? || url.empty?

      link = { 'url' => url }
      link['kind'] = kind if kind && !kind.empty?
      links << link
    elsif t.start_with?('kensho.link.')
      rest = t.sub('kensho.link.', '')
      kind, label = rest.split('=', 2)
      next if label.nil? || label.empty?

      link = { 'url' => label, 'label' => label }
      link['kind'] = kind if kind && !kind.empty?
      links << link
    end
  end
  links
end

#map_case_status(result) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 402

def map_case_status(result)
  return 'pass' if result.respond_to?(:passed?) && result.passed?
  return 'fail' if result.respond_to?(:failed?) && result.failed?
  return 'broken' if result.respond_to?(:undefined?) && result.undefined?
  return 'broken' if result.class.name.to_s.end_with?('::Undefined', '::Ambiguous')
  return 'skip'   if result.respond_to?(:skipped?) && result.skipped?
  return 'skip'   if result.respond_to?(:pending?) && result.pending?

  'pass'
end

#map_step_status(result) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 413

def map_step_status(result)
  s = map_case_status(result)
  s == 'broken' ? 'fail' : s
end

#on_test_case_finished(event) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 199

def on_test_case_finished(event)
  test_case = event.test_case
  scratch = @scratch.delete(test_case.object_id)
  return unless scratch

  case_obj = scratch[:case_obj]
  result = event.result

  status =
    if result.respond_to?(:passed?) && result.passed?
      scratch[:worst_status] == 'pass' ? 'pass' : scratch[:worst_status]
    elsif result.respond_to?(:failed?) && result.failed?
      'fail'
    elsif result.respond_to?(:undefined?) && result.undefined?
      'broken'
    elsif result.respond_to?(:skipped?) && result.skipped?
      'skip'
    elsif result.respond_to?(:pending?) && result.pending?
      'skip'
    else
      scratch[:worst_status]
    end

  duration_ms = [(((Process.clock_gettime(Process::CLOCK_MONOTONIC) - scratch[:started_perf]) * 1000.0).round), 0].max

  case_obj['status']     = status
  case_obj['finishedAt'] = Kensho::Schema.iso_now
  case_obj['duration']   = duration_ms
  case_obj['steps']      = scratch[:steps] unless scratch[:steps].empty?

  if scratch[:first_exception] || scratch[:first_error]
    ex = scratch[:first_exception]
    message = ex ? ex.message.to_s.lines.first.to_s.strip : scratch[:first_error].to_s.lines.first.to_s.strip
    err = { 'message' => message.empty? ? 'failure' : message }
    if ex
      err['type']  = ex.class.name.to_s
      stack = [ex.message.to_s]
      stack.concat(Array(ex.backtrace).first(20))
      err['stack'] = stack.join("\n")
    elsif scratch[:first_error] && scratch[:first_error].to_s != message
      err['stack'] = scratch[:first_error].to_s
    end
    case_obj['errors'] = [err]
  end

  case_obj['attachments'] = scratch[:attachments] unless scratch[:attachments].empty?

  @cases_by_id[case_obj['id']] = case_obj
  write_case(case_obj)
end

#on_test_case_started(event) ⇒ Object

——- per-event handlers ——- #



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# File 'lib/kensho/cucumber/formatter.rb', line 84

def on_test_case_started(event)
  test_case = event.test_case
  @current_test_case = test_case
  scenario_name = test_case.name.to_s
  feature_uri = test_case.location.file rescue nil
  feature_uri ||= (test_case.respond_to?(:source_location) ? test_case.source_location.file : nil)
  feature_name, rule_name = feature_and_rule(test_case)

  full_name = [feature_name, scenario_name].compact.reject(&:empty?).join(' › ')
  file_path = relpath(feature_uri, @rootpath)
  line = (test_case.location.lines.first rescue nil) || (test_case.location.line rescue nil)

  base_id = Kensho::Schema.stable_case_id(full_name, file_path)
  seen = @ids_seen[base_id]
  case_id = seen.zero? ? base_id : "#{base_id}_#{seen + 1}"
  @ids_seen[base_id] = seen + 1

  tags = (test_case.tags || []).map { |t| t.respond_to?(:name) ? t.name.to_s : t.to_s }
  clean_tags = tags.map { |t| t.start_with?('@') ? t[1..] : t }

  severity = severity_from_tags(clean_tags)
  labels = labels_from_tags(clean_tags)
  links = links_from_tags(clean_tags)

  plain_tags = clean_tags.reject do |t|
    t.start_with?('kensho.label.') || t.start_with?('kensho.link.') ||
      t.start_with?('kensho.url.') || t.start_with?('severity:') ||
      SEVERITY_TAGS.include?(t)
  end

  behavior = {}
  behavior['feature']  = feature_name.to_s if feature_name && !feature_name.empty?
  behavior['epic']     = rule_name.to_s    if rule_name && !rule_name.empty?
  behavior['scenario'] = scenario_name     if scenario_name && !scenario_name.empty?

  case_obj = {
    'id'        => case_id,
    'name'      => scenario_name,
    'fullName'  => full_name,
    'status'    => 'skip',
    'startedAt' => Kensho::Schema.iso_now,
    'duration'  => 0,
    'retries'   => 0,
    'platform'  => Kensho::Schema.normalize_os
  }
  case_obj['filePath'] = file_path if file_path
  case_obj['line']     = line.to_i if line
  case_obj['suite']    = [feature_name].compact.reject(&:empty?)
  case_obj.delete('suite') if case_obj['suite'].empty?
  case_obj['tags']     = plain_tags unless plain_tags.empty?
  case_obj['severity'] = severity if severity
  case_obj['labels']   = labels   unless labels.empty?
  case_obj['links']    = links    unless links.empty?
  case_obj['behavior'] = behavior unless behavior.empty?

  scratch = {
    case_obj: case_obj,
    started_perf: Process.clock_gettime(Process::CLOCK_MONOTONIC),
    started_iso: case_obj['startedAt'],
    steps: [],
    step_index: 0,
    worst_status: 'pass',
    first_error: nil,
    first_exception: nil,
    attachments: []
  }
  @scratch[test_case.object_id] = scratch
end

#on_test_run_finished ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 250

def on_test_run_finished
  write_run_json
rescue StandardError => e
  warn "[kensho] failed to write run.json: #{e.message}"
end

#on_test_step_finished(event) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 153

def on_test_step_finished(event)
  test_case = @current_test_case
  return unless test_case

  scratch = @scratch[test_case.object_id]
  return unless scratch

  step = event.test_step
  result = event.result

  title, parameters = step_title_and_params(step)
  # Cucumber emits hooks as test steps with no Gherkin source; skip
  # those from the timeline so the report shows just the user steps.
  return if title.nil?

  status = map_step_status(result)
  case_status = map_case_status(result)
  if case_status == 'fail' || case_status == 'broken'
    scratch[:worst_status] = case_status
  elsif case_status == 'skip' && scratch[:worst_status] == 'pass'
    scratch[:worst_status] = 'skip'
  end

  if (result.respond_to?(:failed?) && result.failed?) ||
     (result.respond_to?(:exception) && result.exception)
    scratch[:first_exception] ||= result.exception if result.respond_to?(:exception)
    scratch[:first_error] ||= (result.respond_to?(:exception) && result.exception) ?
                              result.exception.message.to_s :
                              result.to_s
  end

  duration_ms = duration_ms_from_result(result)
  idx = scratch[:step_index]
  scratch[:step_index] += 1

  step_obj = {
    'id'        => "step_#{idx}_#{SecureRandom.hex(3)}",
    'title'     => title,
    'status'    => status,
    'startedAt' => Kensho::Schema.iso_now,
    'duration'  => duration_ms
  }
  step_obj['parameters'] = parameters unless parameters.empty?
  scratch[:steps] << step_obj
end

#relpath(path, root) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 469

def relpath(path, root)
  return nil unless path

  absolute_path = File.absolute_path(path.to_s)
  absolute_root = File.absolute_path(root.to_s)
  if absolute_path.start_with?(absolute_root + File::SEPARATOR)
    absolute_path[(absolute_root.length + 1)..]
  else
    path.to_s.sub(%r{\A\./}, '')
  end
end

#severity_from_tags(tags) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 355

def severity_from_tags(tags)
  tags.each do |t|
    return t.split(':', 2)[1].to_s.downcase if t.start_with?('severity:') &&
                                               SEVERITY_TAGS.include?(t.split(':', 2)[1].to_s.downcase)
    return t.downcase if SEVERITY_TAGS.include?(t.downcase)
  end
  nil
end

#step_title_and_params(step) ⇒ Object

——- helpers ——- #



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# File 'lib/kensho/cucumber/formatter.rb', line 258

def step_title_and_params(step)
  return [nil, []] if step.respond_to?(:hook?) && step.hook?

  text =
    if step.respond_to?(:text)
      step.text.to_s
    elsif step.respond_to?(:name)
      step.name.to_s
    else
      ''
    end
  return [nil, []] if text.empty?

  keyword = ''
  gherkin_step = nil
  if @ast_lookup
    begin
      src = @ast_lookup.step_source(step)
      gherkin_step = src && src.respond_to?(:step) ? src.step : nil
    rescue StandardError
      gherkin_step = nil
    end
    keyword = gherkin_step.keyword.to_s if gherkin_step && gherkin_step.respond_to?(:keyword)
  end
  title = keyword && !keyword.empty? ? "#{keyword}#{text}" : text

  params = []
  if gherkin_step && gherkin_step.respond_to?(:data_table) && gherkin_step.data_table
    rows = gherkin_step.data_table.rows
    rows.each_with_index do |row, ri|
      cells = row.respond_to?(:cells) ? row.cells : []
      cells.each_with_index do |cell, ci|
        value = cell.respond_to?(:value) ? cell.value.to_s : cell.to_s
        params << {
          'name' => "row#{ri}.col#{ci}",
          'value' => value,
          'kind' => 'data-row'
        }
      end
    end
  end
  if gherkin_step && gherkin_step.respond_to?(:doc_string) && gherkin_step.doc_string
    ds = gherkin_step.doc_string
    params << {
      'name' => 'docstring',
      'value' => ds.respond_to?(:content) ? ds.content.to_s : ds.to_s,
      'kind' => 'argument'
    }
  end

  [title, params]
end

#walk_for_rule(feature, line) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 332

def walk_for_rule(feature, line)
  feature.children.each do |child|
    next unless child.respond_to?(:rule) && child.rule

    rule = child.rule
    # Lines covered by this rule include all its scenarios.
    covered = false
    if rule.respond_to?(:children)
      rule.children.each do |sc_child|
        next unless sc_child.respond_to?(:scenario) && sc_child.scenario

        if sc_child.scenario.location.line == line ||
           sc_child.scenario.steps.any? { |s| s.location.line == line }
          covered = true
          break
        end
      end
    end
    return rule.name.to_s if covered && rule.respond_to?(:name)
  end
  nil
end

#write_case(case_obj) ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 431

def write_case(case_obj)
  path = File.join(@cases_dir, "#{case_obj['id']}.json")
  File.write(path, JSON.pretty_generate(case_obj))
rescue StandardError => e
  warn "[kensho] could not write #{File.basename(path)}: #{e.message}"
end

#write_run_json ⇒ Object 



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# File 'lib/kensho/cucumber/formatter.rb', line 438

def write_run_json
  finished_at = Kensho::Schema.iso_now
  cases = @cases_by_id.values
  totals = { 'pass' => 0, 'fail' => 0, 'broken' => 0, 'skip' => 0 }
  cases.each { |c| totals[c['status']] += 1 if totals.key?(c['status']) }
  duration_ms = [((Process.clock_gettime(Process::CLOCK_MONOTONIC) - @started_perf) * 1000.0).round, 0].max
  framework_version = cucumber_version

  run = {
    'schemaVersion' => Kensho::Schema::SCHEMA_VERSION,
    'id'            => @run_id,
    'project'       => @project,
    'framework'     => { 'name' => 'cucumber-ruby', 'version' => framework_version },
    'env'           => Kensho::Schema.env_info(framework_version: framework_version),
    'startedAt'     => @started_at,
    'finishedAt'    => finished_at,
    'totals'        => totals,
    'durationMs'    => duration_ms,
    'testCases'     => cases
  }
  File.write(File.join(@output_dir, 'run.json'), JSON.pretty_generate(run))
end