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module Shoulda # :nodoc:
module Matchers
module ActiveModel # :nodoc:
# Ensure that the attribute's value is not in the range specified
#
# Options:
# * <tt>in_range</tt> - the range of not allowed values for this attribute
# * <tt>with_message</tt> - value the test expects to find in
# <tt>errors.on(:attribute)</tt>. Regexp or string. Defaults to the
# translation for :exclusion.
#
# Example:
# it { should ensure_exclusion_of(:age).in_range(30..60) }
#
def ensure_exclusion_of(attr)
EnsureExclusionOfMatcher.new(attr)
end
class EnsureExclusionOfMatcher < ValidationMatcher # :nodoc:
def in_range(range)
@range = range
@minimum = range.first
@maximum = range.last
self
end
def with_message(message)
@expected_message = message if message
self
end
def description
"ensure exclusion of #{@attribute} in #{@range.inspect}"
end
def matches?(subject)
super(subject)
@expected_message ||= :exclusion
allows_lower_value &&
disallows_minimum_value &&
allows_higher_value &&
disallows_maximum_value
end
private
def allows_lower_value
@minimum == 0 || allows_value_of(@minimum - 1, @expected_message)
end
def allows_higher_value
allows_value_of(@maximum + 1, @expected_message)
end
def disallows_minimum_value
disallows_value_of(@minimum, @expected_message)
end
def disallows_maximum_value
disallows_value_of(@maximum, @expected_message)
end
end
end
end
end
Version data entries
13 entries across 10 versions & 3 rubygems