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module Rspec
module Matchers
class RespondTo #:nodoc:
def initialize(*names)
@names = names
@expected_arity = nil
@names_not_responded_to = []
end
def matches?(actual)
@actual = actual
@names.each do |name|
@names_not_responded_to << name unless actual.respond_to?(name) && matches_arity?(actual, name)
end
return @names_not_responded_to.empty?
end
def failure_message_for_should
"expected #{@actual.inspect} to respond to #{@names_not_responded_to.collect {|name| name.inspect }.join(', ')}#{with_arity}"
end
def failure_message_for_should_not
"expected #{@actual.inspect} not to respond to #{@names.collect {|name| name.inspect }.join(', ')}"
end
def description
"respond to #{pp_names}#{with_arity}"
end
def with(n)
@expected_arity = n
self
end
def argument
self
end
alias :arguments :argument
private
def matches_arity?(actual, name)
@expected_arity.nil?? true : @expected_arity == actual.method(name).arity
end
def with_arity
@expected_arity.nil?? "" :
" with #{@expected_arity} argument#{@expected_arity == 1 ? '' : 's'}"
end
def pp_names
# Ruby 1.9 returns the same thing for array.to_s as array.inspect, so just use array.inspect here
@names.length == 1 ? "##{@names.first}" : @names.inspect
end
end
# :call-seq:
# should respond_to(*names)
# should_not respond_to(*names)
#
# Matches if the target object responds to all of the names
# provided. Names can be Strings or Symbols.
#
# == Examples
#
def respond_to(*names)
Matchers::RespondTo.new(*names)
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems