## mark a section (Learn more)

# http://blog.trapdoor1.net/2008/07/09/quick-testing-of-activerecord-validations-in-rspec/ class ValidateWithExactly def initialize(attrs) @attrs = attrs end def matches?(object) @object = object unless @object.valid? @failure = "#{@object} should be valid with specified attributes #{@attrs.keys.inspect}, but isn't." return(false) end @attrs.each_pair do |attribute, value| new_attributes = @attrs.reject{ |k, v| k == attribute.to_sym } test_object = @object.class.new(new_attributes) if test_object.valid? @failure = "Removing attribute #{attribute.inspect} should invalidate the object, but doesn't." return(false) end end return(true) end def failure_message @failure end end def validate_with_exactly(attrs) ValidateWithExactly.new(attrs) end

This paste will be private.