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module RSpec
module Mocks
# @private
class OrderGroup
def initialize
@expectations = []
@invocation_order = []
@index = 0
end
# @private
def register(expectation)
@expectations << expectation
end
def invoked(message)
@invocation_order << message
end
# @private
def ready_for?(expectation)
remaining_expectations.find(&:ordered?) == expectation
end
# @private
def consume
remaining_expectations.each_with_index do |expectation, index|
next unless expectation.ordered?
@index += index + 1
return expectation
end
nil
end
# @private
def handle_order_constraint(expectation)
return unless expectation.ordered? && remaining_expectations.include?(expectation)
return consume if ready_for?(expectation)
expectation.raise_out_of_order_error
end
def verify_invocation_order(expectation)
expectation.raise_out_of_order_error unless expectations_invoked_in_order?
true
end
def clear
@index = 0
@invocation_order.clear
@expectations.clear
end
def empty?
@expectations.empty?
end
private
def remaining_expectations
@expectations[@index..-1] || []
end
def expectations_invoked_in_order?
invoked_expectations == expected_invocations
end
def invoked_expectations
@expectations.select { |e| e.ordered? && @invocation_order.include?(e) }
end
def expected_invocations
@invocation_order.map { |invocation| expectation_for(invocation) }.compact
end
def expectation_for(message)
@expectations.find { |e| message == e }
end
end
end
end
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