vendor/gems/rspec-1.1.2/lib/spec/translator.rb

   1 require 'fileutils'
   2
   3 module Spec
   4   class Translator
   5     def translate(from, to)
   6       from = File.expand_path(from)
   7       to = File.expand_path(to)
   8       if File.directory?(from)
   9         translate_dir(from, to)
  10       elsif(from =~ /\.rb$/)
  11         translate_file(from, to)
  12       end
  13     end
  14
  15     def translate_dir(from, to)
  16       FileUtils.mkdir_p(to) unless File.directory?(to)
  17       Dir["#{from}/*"].each do |sub_from|
  18         path = sub_from[from.length+1..-1]
  19         sub_to = File.join(to, path)
  20         translate(sub_from, sub_to)
  21       end
  22     end
  23
  24     def translate_file(from, to)
  25       translation = ""
  26       File.open(from) do |io|
  27         io.each_line do |line|
  28           translation << translate_line(line)
  29         end
  30       end
  31       File.open(to, "w") do |io|
  32         io.write(translation)
  33       end
  34     end
  35
  36     def translate_line(line)
  37       # Translate deprecated mock constraints
  38       line.gsub!(/:any_args/, 'any_args')
  39       line.gsub!(/:anything/, 'anything')
  40       line.gsub!(/:boolean/, 'boolean')
  41       line.gsub!(/:no_args/, 'no_args')
  42       line.gsub!(/:numeric/, 'an_instance_of(Numeric)')
  43       line.gsub!(/:string/, 'an_instance_of(String)')
  44
  45       return line if line =~ /(should_not|should)_receive/
  46
  47       line.gsub!(/(^\s*)context([\s*|\(]['|"|A-Z])/, '\1describe\2')
  48       line.gsub!(/(^\s*)specify([\s*|\(]['|"|A-Z])/, '\1it\2')
  49       line.gsub!(/(^\s*)context_setup(\s*[do|\{])/, '\1before(:all)\2')
  50       line.gsub!(/(^\s*)context_teardown(\s*[do|\{])/, '\1after(:all)\2')
  51       line.gsub!(/(^\s*)setup(\s*[do|\{])/, '\1before(:each)\2')
  52       line.gsub!(/(^\s*)teardown(\s*[do|\{])/, '\1after(:each)\2')
  53
  54       if line =~ /(.*\.)(should_not|should)(?:_be)(?!_)(.*)/m
  55         pre = $1
  56         should = $2
  57         post = $3
  58         be_or_equal = post =~ /(<|>)/ ? "be" : "equal"
  59
  60         return "#{pre}#{should} #{be_or_equal}#{post}"
  61       end
  62
  63       if line =~ /(.*\.)(should_not|should)_(?!not)\s*(.*)/m
  64         pre = $1
  65         should = $2
  66         post = $3
  67
  68         post.gsub!(/^raise/, 'raise_error')
  69         post.gsub!(/^throw/, 'throw_symbol')
  70
  71         unless standard_matcher?(post)
  72           post = "be_#{post}"
  73         end
  74
  75         # Add parenthesis
  76         post.gsub!(/^(\w+)\s+([\w|\.|\,|\(.*\)|\'|\"|\:|@| ]+)(\})/, '\1(\2)\3') # inside a block
  77         post.gsub!(/^(redirect_to)\s+(.*)/, '\1(\2)') # redirect_to, which often has http:
  78         post.gsub!(/^(\w+)\s+([\w|\.|\,|\(.*\)|\{.*\}|\'|\"|\:|@| ]+)/, '\1(\2)')
  79         post.gsub!(/(\s+\))/, ')')
  80         post.gsub!(/\)\}/, ') }')
  81         post.gsub!(/^(\w+)\s+(\/.*\/)/, '\1(\2)') #regexps
  82         line = "#{pre}#{should} #{post}"
  83       end
  84
  85       line
  86     end
  87
  88     def standard_matcher?(matcher)
  89       patterns = [
  90         /^be/,
  91         /^be_close/,
  92         /^eql/,
  93         /^equal/,
  94         /^has/,
  95         /^have/,
  96         /^change/,
  97         /^include/,
  98         /^match/,
  99         /^raise_error/,
 100         /^respond_to/,
 101         /^redirect_to/,
 102         /^satisfy/,
 103         /^throw_symbol/,
 104         # Extra ones that we use in spec_helper
 105         /^pass/,
 106         /^fail/,
 107         /^fail_with/,
 108       ]
 109       matched = patterns.detect{ |p| matcher =~ p }
 110       !matched.nil?
 111     end
 112
 113   end
 114 end