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|
module RSpec
module Matchers
module BuiltIn
# @api private
# Provides the implementation for `be_truthy`.
# Not intended to be instantiated directly.
class BeTruthy < BaseMatcher
# @api private
# @return [String]
def failure_message
"expected: truthy value\n got: #{actual_formatted}"
end
# @api private
# @return [String]
def failure_message_when_negated
"expected: falsey value\n got: #{actual_formatted}"
end
private
def match(_, actual)
!!actual
end
end
# @api private
# Provides the implementation for `be_falsey`.
# Not intended to be instantiated directly.
class BeFalsey < BaseMatcher
# @api private
# @return [String]
def failure_message
"expected: falsey value\n got: #{actual_formatted}"
end
# @api private
# @return [String]
def failure_message_when_negated
"expected: truthy value\n got: #{actual_formatted}"
end
private
def match(_, actual)
!actual
end
end
# @api private
# Provides the implementation for `be_nil`.
# Not intended to be instantiated directly.
class BeNil < BaseMatcher
# @api private
# @return [String]
def failure_message
"expected: nil\n got: #{actual_formatted}"
end
# @api private
# @return [String]
def failure_message_when_negated
"expected: not nil\n got: nil"
end
private
def match(_, actual)
actual.nil?
end
end
# @private
module BeHelpers
private
def args_to_s
@args.empty? ? "" : parenthesize(inspected_args.join(', '))
end
def parenthesize(string)
"(#{string})"
end
def inspected_args
@args.map { |a| RSpec::Support::ObjectFormatter.format(a) }
end
def expected_to_sentence
EnglishPhrasing.split_words(@expected)
end
def args_to_sentence
EnglishPhrasing.list(@args)
end
end
# @api private
# Provides the implementation for `be`.
# Not intended to be instantiated directly.
class Be < BaseMatcher
include BeHelpers
def initialize(*args)
@args = args
end
# @api private
# @return [String]
def failure_message
"expected #{actual_formatted} to evaluate to true"
end
# @api private
# @return [String]
def failure_message_when_negated
"expected #{actual_formatted} to evaluate to false"
end
[:==, :<, :<=, :>=, :>, :===, :=~].each do |operator|
define_method operator do |operand|
BeComparedTo.new(operand, operator)
end
end
private
def match(_, actual)
!!actual
end
end
# @api private
# Provides the implementation of `be <operator> value`.
# Not intended to be instantiated directly.
class BeComparedTo < BaseMatcher
include BeHelpers
def initialize(operand, operator)
@expected = operand
@operator = operator
@args = []
end
def matches?(actual)
perform_match(actual)
rescue ArgumentError, NoMethodError
false
end
def does_not_match?(actual)
!perform_match(actual)
rescue ArgumentError, NoMethodError
false
end
# @api private
# @return [String]
def failure_message
"expected: #{@operator} #{expected_formatted}\n" \
" got: #{@operator.to_s.gsub(/./, ' ')} #{actual_formatted}"
end
# @api private
# @return [String]
def failure_message_when_negated
message = "`expect(#{actual_formatted}).not_to " \
"be #{@operator} #{expected_formatted}`"
if [:<, :>, :<=, :>=].include?(@operator)
message + " not only FAILED, it is a bit confusing."
else
message
end
end
# @api private
# @return [String]
def description
"be #{@operator} #{expected_to_sentence}#{args_to_sentence}"
end
private
def perform_match(actual)
@actual = actual
@actual.__send__ @operator, @expected
end
end
end
end
end
|
