thoughtbot--shoulda-matchers/lib/shoulda/matchers/active_model/validate_numericality_of_ma...

40 lines
1005 B
Ruby

module Shoulda # :nodoc:
module Matchers
module ActiveModel # :nodoc:
# Ensure that the attribute is numeric
#
# Options:
# * <tt>with_message</tt> - value the test expects to find in
# <tt>errors.on(:attribute)</tt>. Regexp or string. Defaults to the
# translation for <tt>:not_a_number</tt>.
#
# Example:
# it { should validate_numericality_of(:age) }
#
def validate_numericality_of(attr)
ValidateNumericalityOfMatcher.new(attr)
end
class ValidateNumericalityOfMatcher < ValidationMatcher # :nodoc:
def with_message(message)
@expected_message = message if message
self
end
def matches?(subject)
super(subject)
@expected_message ||= :not_a_number
disallows_value_of('abcd', @expected_message)
end
def description
"only allow numeric values for #{@attribute}"
end
end
end
end
end