openbotlist/WEB-INF/lib/ruby/rspec/lib/spec/runner/spec_parser.rb

   1 module Spec
   2   module Runner
   3     # Parses a spec file and finds the nearest example for a given line number.
   4     class SpecParser
   5       attr_reader :best_match
   6
   7       def initialize
   8         @best_match = {}
   9       end
  10
  11       def spec_name_for(file, line_number)
  12         best_match.clear
  13         file = File.expand_path(file)
  14         rspec_options.example_groups.each do |example_group|
  15           consider_example_groups_for_best_match example_group, file, line_number
  16
  17           example_group.examples.each do |example|
  18             consider_example_for_best_match example, example_group, file, line_number
  19           end
  20         end
  21         if best_match[:example_group]
  22           if best_match[:example]
  23             "#{best_match[:example_group].description} #{best_match[:example].description}"
  24           else
  25             best_match[:example_group].description
  26           end
  27         else
  28           nil
  29         end
  30       end
  31
  32     protected
  33
  34       def consider_example_groups_for_best_match(example_group, file, line_number)
  35         parsed_backtrace = parse_backtrace(example_group.registration_backtrace)
  36         parsed_backtrace.each do |example_file, example_line|
  37           if is_best_match?(file, line_number, example_file, example_line)
  38             best_match.clear
  39             best_match[:example_group] = example_group
  40             best_match[:line] = example_line
  41           end
  42         end
  43       end
  44
  45       def consider_example_for_best_match(example, example_group, file, line_number)
  46         parsed_backtrace = parse_backtrace(example.implementation_backtrace)
  47         parsed_backtrace.each do |example_file, example_line|
  48           if is_best_match?(file, line_number, example_file, example_line)
  49             best_match.clear
  50             best_match[:example_group] = example_group
  51             best_match[:example] = example
  52             best_match[:line] = example_line
  53           end
  54         end
  55       end
  56
  57       def is_best_match?(file, line_number, example_file, example_line)
  58         file == File.expand_path(example_file) &&
  59         example_line <= line_number &&
  60         example_line > best_match[:line].to_i
  61       end
  62
  63       def parse_backtrace(backtrace)
  64         backtrace.collect do |trace_line|
  65           split_line = trace_line.split(':')
  66           [split_line[0], Integer(split_line[1])]
  67         end
  68       end
  69     end
  70   end
  71 end