added spec/ directory

diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644 (file)
index 0000000..3c6b4da
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,112 @@
+require 'spec'
+
+class WrongColor < Exception
+    def initialize(pixel)
+       @pixel = pixel
+    end
+    def to_s
+       "Wrong color at #{@pixel}"
+    end
+end
+class AreaError < Exception
+    def initialize(area,problem)
+       @area,@problem = area,problem
+    end
+    def to_s
+       "Area at #{@area} #{@problem}"
+    end
+end
+class PixelError < Exception
+    def initialize(p1, relation,p2)
+       @p1,@p2,@relation = p1,p2,relation
+    end
+    def to_s
+       "Pixel #{@p1} #{@relation} #{@p2}"
+    end
+end
+
+class Area
+    def initialize(x1,y1,x2,y2)
+       @x1,@y1,@x2,@y2 = x1,y1,x2,y2
+    end
+    def should_be_plain_colored
+       raise AreaError.new(self,"is not plain colored")
+    end
+    def should_not_be_plain_colored
+       raise AreaError.new(self,"is plain colored")
+    end
+    def to_s
+       "(#{@x1},#{@y1},#{@x2},#{@y2})"
+    end
+end
+class Pixel
+    def initialize(x,y)
+       @x = x
+       @y = y
+    end
+    def should_be_of_color(color)
+       raise WrongColor.new(self)
+    end
+    def should_be_brighter_than(pixel)
+       raise PixelError.new(self,"is not brighter than",pixel)
+    end
+    def should_be_less_bright_than(pixel)
+       raise PixelError.new(self,"is brighter than",pixel)
+    end
+    def should_be_the_same_as(pixel)
+       raise PixelError.new(self,"is not the same as",pixel)
+    end
+    def to_s
+       "(#{@x},#{@y})"
+    end
+end
+class DocFile
+    def initialize(filename, options)
+       @filename = filename
+       @page = (options[:page] or 1)
+    end
+    def area_at(x1,y1,x2,y2)
+       return Area.new(x1,y1,x2,y2)
+    end
+    def width
+       return 300
+    end
+    def height
+       return 200
+    end
+    def pixel_at(x,y)
+       return Pixel.new(x,y)
+    end
+end
+
+module Spec
+    module Example
+       module ExampleMethods
+          def area_at(x1,y1,x2,y2)
+              @file.area_at(x1,y1,x2,y2)
+          end
+          def width
+              @file.width
+          end
+          def height
+              @file.height
+          end
+          def pixel_at(x,y)
+              @file.pixel_at(x,y)
+          end
+          def initialize(proxy,&impl)
+              @_proxy = proxy
+              @_implementation = impl
+              @_backtrace = caller
+              @file = DocFile.new(proxy.description, proxy.options)
+           end
+       end
+       module ExampleGroupMethods
+           alias :convert_file :example
+           def page(nr)
+               nr
+           end
+       end
+    end
+end
+