# File lib/mocha/parameter_matchers/has_entry.rb, line 44
    def has_entry(*options)
      case options.length
      when 1
        case options[0]
        when Hash
          case options[0].length
          when 0
            raise ArgumentError.new("Argument has no entries.")
          when 1
            key, value = options[0].first
          else
            raise ArgumentError.new("Argument has multiple entries. Use Mocha::ParameterMatchers#has_entries instead.")
          end
        else
          raise ArgumentError.new("Argument is not a Hash.")
        end
      when 2
        key, value = options
      else
        raise ArgumentError.new("Too many arguments; use either a single argument (must be a Hash) or two arguments (a key and a value).")
      end
      HasEntry.new(key, value)
    end