Extra Matchers from Community

expect_json_sizes

module AirborneJsonSizesMatcher
  def expect_json_sizes(*args)
    if args.last.is_a?(Hash)
      args.push(convert_expectations(args.pop))
    end

    expect_json_types(*args)
  end

  private

  def convert_expectations(old_expectations)
    old_expectations.each_with_object({}) do |(prop_name, expected_size), memo|
      new_value = if expected_size.is_a?(Hash)
                    convert_expectations(expected_size)
                  else
                    -> (data) { expect(data.size).to eq(expected_size) }
                  end
      memo[prop_name] = new_value
    end
  end
end

RSpec.configure do |config|
  config.include AirborneJsonSizesMatcher
end