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Path: /opt/chef.upgrade/embedded/lib/ruby/gems/2.3.0/gems/rack-2.0.3/test/

Viewing File: spec_common_logger.rb

require 'minitest/autorun'
require 'rack/common_logger'
require 'rack/lint'
require 'rack/mock'

require 'logger'

describe Rack::CommonLogger do
  obj = 'foobar'
  length = obj.size

  app = Rack::Lint.new lambda { |env|
    [200,
     {"Content-Type" => "text/html", "Content-Length" => length.to_s},
     [obj]]}
  app_without_length = Rack::Lint.new lambda { |env|
    [200,
     {"Content-Type" => "text/html"},
     []]}
  app_with_zero_length = Rack::Lint.new lambda { |env|
    [200,
     {"Content-Type" => "text/html", "Content-Length" => "0"},
     []]}

  it "log to rack.errors by default" do
    res = Rack::MockRequest.new(Rack::CommonLogger.new(app)).get("/")

    res.errors.wont_be :empty?
    res.errors.must_match(/"GET \/ " 200 #{length} /)
  end

  it "log to anything with +write+" do
    log = StringIO.new
    Rack::MockRequest.new(Rack::CommonLogger.new(app, log)).get("/")

    log.string.must_match(/"GET \/ " 200 #{length} /)
  end

  it "work with standartd library logger" do
    logdev = StringIO.new
    log = Logger.new(logdev)
    Rack::MockRequest.new(Rack::CommonLogger.new(app, log)).get("/")

    logdev.string.must_match(/"GET \/ " 200 #{length} /)
  end

  it "log - content length if header is missing" do
    res = Rack::MockRequest.new(Rack::CommonLogger.new(app_without_length)).get("/")

    res.errors.wont_be :empty?
    res.errors.must_match(/"GET \/ " 200 - /)
  end

  it "log - content length if header is zero" do
    res = Rack::MockRequest.new(Rack::CommonLogger.new(app_with_zero_length)).get("/")

    res.errors.wont_be :empty?
    res.errors.must_match(/"GET \/ " 200 - /)
  end

  def with_mock_time(t = 0)
    mc = class << Time; self; end
    mc.send :alias_method, :old_now, :now
    mc.send :define_method, :now do
      at(t)
    end
    yield
  ensure
    mc.send :undef_method, :now
    mc.send :alias_method, :now, :old_now
  end

  it "log in common log format" do
    log = StringIO.new
    with_mock_time do
      Rack::MockRequest.new(Rack::CommonLogger.new(app, log)).get("/")
    end

    md = /- - - \[([^\]]+)\] "(\w+) \/ " (\d{3}) \d+ ([\d\.]+)/.match(log.string)
    md.wont_equal nil
    time, method, status, duration = *md.captures
    time.must_equal Time.at(0).strftime("%d/%b/%Y:%H:%M:%S %z")
    method.must_equal "GET"
    status.must_equal "200"
    (0..1).must_include duration.to_f
  end

  def length
    123
  end

  def self.obj
    "hello world"
  end
end