class Shoulda::Matchers::ActiveModel::NumericalityMatchers::ComparisonMatcher

@private

Constants

ERROR_MESSAGES

Public Class Methods

new(numericality_matcher, value, operator) click to toggle source
Calls superclass method
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 15
def initialize(numericality_matcher, value, operator)
  super(nil)
  unless numericality_matcher.respond_to? :diff_to_compare
    raise ArgumentError, 'numericality_matcher is invalid'
  end
  @numericality_matcher = numericality_matcher
  @value = value
  @operator = operator
  @message = ERROR_MESSAGES[operator]
end

Public Instance Methods

comparison_description() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 66
def comparison_description
  "#{comparison_expectation} #{@value}"
end
expects_custom_validation_message?() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 49
def expects_custom_validation_message?
  @expects_custom_validation_message
end
failure_message() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 58
def failure_message
  last_failing_submatcher.failure_message
end
failure_message_when_negated() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 62
def failure_message_when_negated
  last_failing_submatcher.failure_message_when_negated
end
for(attribute) click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 38
def for(attribute)
  @attribute = attribute
  self
end
matches?(subject) click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 53
def matches?(subject)
  @subject = subject
  all_bounds_correct?
end
simple_description() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 26
def simple_description
  description = ''

  if expects_strict?
    description << ' strictly'
  end

  description +
    "disallow :#{attribute} from being a number that is not " +
    "#{comparison_expectation} #{@value}"
end
with_message(message) click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 43
def with_message(message)
  @expects_custom_validation_message = true
  @message = message
  self
end

Private Instance Methods

all_bounds_correct?() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 72
def all_bounds_correct?
  failing_submatchers.empty?
end
assertions() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 116
def assertions
  case @operator
  when :>
    [false, false, true]
  when :>=
    [false, true, true]
  when :==
    [false, true, false]
  when :<
    [true, false, false]
  when :<=
    [true, true, false]
  end
end
comparison_combos() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 102
def comparison_combos
  diffs_to_compare.zip(submatcher_method_names)
end
comparison_expectation() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 142
def comparison_expectation
  case @operator
    when :> then "greater than"
    when :>= then "greater than or equal to"
    when :== then "equal to"
    when :< then "less than"
    when :<= then "less than or equal to"
  end
end
diffs_to_compare() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 131
def diffs_to_compare
  diff_to_compare = @numericality_matcher.diff_to_compare
  values = [-1, 0, 1].map { |sign| @value + (diff_to_compare * sign) }

  if @numericality_matcher.given_numeric_column?
    values
  else
    values.map(&:to_s)
  end
end
failing_submatchers() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 76
def failing_submatchers
  submatchers_and_results.
    select { |x| !x[:matched] }.
    map { |x| x[:matcher] }
end
last_failing_submatcher() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 82
def last_failing_submatcher
  failing_submatchers.last
end
submatcher_method_names() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 106
def submatcher_method_names
  assertions.map do |value|
    if value
      :allow_value_matcher
    else
      :disallow_value_matcher
    end
  end
end
submatchers() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 86
def submatchers
  @_submatchers ||=
    comparison_combos.map do |diff, submatcher_method_name|
      matcher = __send__(submatcher_method_name, diff, nil)
      matcher.with_message(@message, values: { count: @value })
      matcher
    end
end
submatchers_and_results() click to toggle source
# File lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb, line 95
def submatchers_and_results
  @_submatchers_and_results ||=
    submatchers.map do |matcher|
      { matcher: matcher, matched: matcher.matches?(@subject) }
    end
end