Exception: Lawyer::BrokenContract

Inherits:
StandardError
  • Object
show all
Defined in:
lib/lawyer/broken_contract.rb

Instance Method Summary collapse

Constructor Details

#initialize(subject, contract, violations) ⇒ BrokenContract

Returns a new instance of BrokenContract.



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# File 'lib/lawyer/broken_contract.rb', line 3

def initialize(subject, contract, violations)
  @subject = subject.name
  @contract = contract.name
  @method_missing_violations = violations.select { |v| v.is_a?(MethodMissingViolation) }
  @wrong_arity_violations = violations.select { |v| v.is_a?(WrongArityViolation) }
  @wrong_signature_violations = violations.select { |v| v.is_a?(WrongSignatureViolation) }
end

Instance Method Details

#explain_violations(violations, type) ⇒ Object 



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# File 'lib/lawyer/broken_contract.rb', line 23

def explain_violations(violations, type)
  str = ""
  if violations.any?
    count = violations.count
    str << "\t(#{count} #{methods(count)} #{type})\n"
    str << violations.map(&:to_s).join("\n")
    str << "\n"
  end
  str
end

#methods(count) ⇒ Object 



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# File 'lib/lawyer/broken_contract.rb', line 34

def methods(count)
  count == 1 ? "method" : "methods"
end

#to_s ⇒ Object 



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# File 'lib/lawyer/broken_contract.rb', line 11

def to_s
  str = "#{@subject} does not implement <#{@contract}>\n"
  str << explain_violations(@method_missing_violations, "missing")
  str << "\n" if @method_missing_violations.any? &&
                (@wrong_arity_violations.any? || @wrong_signature_violations.any?)
  str << explain_violations(@wrong_arity_violations, "with the wrong arity")
  str << "\n" if (@method_missing_violations.any? || @wrong_arity_violations.any?) &&
                 @wrong_signature_violations.any?
  str << explain_violations(@wrong_signature_violations, "with the wrong signature")
  str
end