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