# frozen_string_literal: true require_relative 'helper' describe Rack::NullLogger do it "act as a noop logger" do app = lambda { |env| env['rack.logger'].warn "b00m" [200, { 'Content-Type' => 'text/plain' }, ["Hello, World!"]] } logger = Rack::Lint.new(Rack::NullLogger.new(app)) res = logger.call(Rack::MockRequest.env_for) res[0..1].must_equal [ 200, { 'Content-Type' => 'text/plain' } ] res[2].to_enum.to_a.must_equal ["Hello, World!"] end end