vendor/gems/rspec-1.1.2/lib/spec/matchers/include.rb

   1 module Spec
   2   module Matchers
   3
   4     class Include #:nodoc:
   5
   6       def initialize(*expecteds)
   7         @expecteds = expecteds
   8       end
   9
  10       def matches?(actual)
  11         @actual = actual
  12         @expecteds.each do |expected|
  13           return false unless actual.include?(expected)
  14         end
  15         true
  16       end
  17
  18       def failure_message
  19         _message
  20       end
  21
  22       def negative_failure_message
  23         _message("not ")
  24       end
  25
  26       def description
  27         "include #{_pretty_print(@expecteds)}"
  28       end
  29
  30       private
  31         def _message(maybe_not="")
  32           "expected #{@actual.inspect} #{maybe_not}to include #{_pretty_print(@expecteds)}"
  33         end
  34
  35         def _pretty_print(array)
  36           result = ""
  37           array.each_with_index do |item, index|
  38             if index < (array.length - 2)
  39               result << "#{item.inspect}, "
  40             elsif index < (array.length - 1)
  41               result << "#{item.inspect} and "
  42             else
  43               result << "#{item.inspect}"
  44             end
  45           end
  46           result
  47         end
  48     end
  49
  50     # :call-seq:
  51     #   should include(expected)
  52     #   should_not include(expected)
  53     #
  54     # Passes if actual includes expected. This works for
  55     # collections and Strings. You can also pass in multiple args
  56     # and it will only pass if all args are found in collection.
  57     #
  58     # == Examples
  59     #
  60     #   [1,2,3].should include(3)
  61     #   [1,2,3].should include(2,3) #would pass
  62     #   [1,2,3].should include(2,3,4) #would fail
  63     #   [1,2,3].should_not include(4)
  64     #   "spread".should include("read")
  65     #   "spread".should_not include("red")
  66     def include(*expected)
  67       Matchers::Include.new(*expected)
  68     end
  69   end
  70 end