Class: Spring::Test::Application

Inherits:
Object
  • Object
show all
Defined in:
lib/spring/test/application.rb

Constant Summary collapse

DEFAULT_TIMEOUT = 
ENV['CI'] ? 30 : 10

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root) ⇒ Application

Returns a new instance of Application.



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# File 'lib/spring/test/application.rb', line 10

def initialize(root)
  @root       = Pathname.new(root)
  @spring_env = Spring::Env.new(root)
end

Instance Attribute Details

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/spring/test/application.rb', line 8

def root
  @root
end

#spring_env ⇒ Object (readonly)

Returns the value of attribute spring_env.



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# File 'lib/spring/test/application.rb', line 8

def spring_env
  @spring_env
end

Instance Method Details

#application_config ⇒ Object 



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# File 'lib/spring/test/application.rb', line 83

def application_config
  path "config/application.rb"
end

#await_reload ⇒ Object 



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# File 'lib/spring/test/application.rb', line 178

def await_reload
  raise "no pid" if @application_pids.nil? || @application_pids.empty?

  Timeout.timeout(DEFAULT_TIMEOUT) do
    sleep 0.1 while @application_pids.any? { |p| process_alive?(p) }
  end
end

#bundle ⇒ Object 



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# File 'lib/spring/test/application.rb', line 202

def bundle
  run! "(gem list bundler | grep bundler) || gem install bundler", timeout: nil, retry: 2
  run! "bundle check || bundle update --retry=2", timeout: nil
end

#controller ⇒ Object 



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# File 'lib/spring/test/application.rb', line 79

def controller
  path "app/controllers/posts_controller.rb"
end

#debug(artifacts) ⇒ Object 



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# File 'lib/spring/test/application.rb', line 172

def debug(artifacts)
  artifacts = artifacts.dup
  artifacts.delete :status
  dump_streams(artifacts.delete(:command), artifacts)
end

#dump_streams(command, streams) ⇒ Object 



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# File 'lib/spring/test/application.rb', line 158

def dump_streams(command, streams)
  output = "$ #{command}\n"

  streams.each do |name, stream|
    unless stream.chomp.empty?
      output << "--- #{name} ---\n"
      output << "#{stream.chomp}\n"
    end
  end

  output << "\n"
  output
end

#env ⇒ Object 



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# File 'lib/spring/test/application.rb', line 31

def env
  @env ||= {
    "GEM_HOME"   => gem_home.to_s,
    "GEM_PATH"   => gem_home.to_s,
    "HOME"       => user_home.to_s,
    "RAILS_ENV"  => nil,
    "RACK_ENV"   => nil,
    "SPRING_LOG" => log_file.path
  }
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spring/test/application.rb', line 15

def exists?
  root.exist?
end

#first_time ⇒ Object 



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# File 'lib/spring/test/application.rb', line 134

def first_time
  @times.first
end

#gem_home ⇒ Object 



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# File 'lib/spring/test/application.rb', line 50

def gem_home
  path "vendor/gems/#{RUBY_VERSION}"
end

#gemfile ⇒ Object 



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# File 'lib/spring/test/application.rb', line 46

def gemfile
  path "Gemfile"
end

#last_time ⇒ Object 



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# File 'lib/spring/test/application.rb', line 130

def last_time
  @times.last
end

#log_file ⇒ Object 



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# File 'lib/spring/test/application.rb', line 27

def log_file
  @log_file ||= path("tmp/spring.log").open("w+")
end

#path(addition) ⇒ Object 



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# File 'lib/spring/test/application.rb', line 42

def path(addition)
  root.join addition
end

#rails_version ⇒ Object 



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# File 'lib/spring/test/application.rb', line 62

def rails_version
  @rails_version ||= RailsVersion.new(gemfile.read.match(/gem 'rails', '(.*)'/)[1])
end

#read_stream(stream) ⇒ Object 



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# File 'lib/spring/test/application.rb', line 150

def read_stream(stream)
  output = ""
  while IO.select([stream], [], [], 0.5) && !stream.eof?
    output << stream.readpartial(10240)
  end
  output
end

#read_streams ⇒ Object 



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# File 'lib/spring/test/application.rb', line 142

def read_streams
  {
    stdout: read_stream(stdout.first),
    stderr: read_stream(stderr.first),
    log:    read_stream(log_file)
  }
end

#run(command, opts = {}) ⇒ Object 



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# File 'lib/spring/test/application.rb', line 91

def run(command, opts = {})
  start_time = Time.now

  Bundler.with_clean_env do
    Process.spawn(
      env,
      command.to_s,
      out:   stdout.last,
      err:   stderr.last,
      in:    :close,
      chdir: root.to_s,
    )
  end

  _, status = Timeout.timeout(opts.fetch(:timeout, DEFAULT_TIMEOUT)) { Process.wait2 }

  if pid = spring_env.pid
    @server_pid = pid
    lines = `ps -A -o ppid= -o pid= | egrep '^\\s*#{@server_pid}'`.lines
    @application_pids = lines.map { |l| l.split.last.to_i }
  end

  output = read_streams
  puts dump_streams(command, output) if ENV["SPRING_DEBUG"]

  @times << (Time.now - start_time) if @times

  output.merge(status: status, command: command)
rescue Timeout::Error => e
  raise e, "Output:\n\n#{dump_streams(command, read_streams)}"
end

#run!(command, options = {}) ⇒ Object 



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# File 'lib/spring/test/application.rb', line 186

def run!(command, options = {})
  attempts  = (options.delete(:retry) || 0) + 1
  artifacts = nil

  until attempts == 0 || artifacts && artifacts[:status].success?
    artifacts = run(command, options)
    attempts -= 1
  end

  if artifacts[:status].success?
    artifacts
  else
    raise "command failed\n\n#{debug(artifacts)}"
  end
end

#spring ⇒ Object 



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# File 'lib/spring/test/application.rb', line 58

def spring
  gem_home.join "bin/spring"
end

#spring_config ⇒ Object 



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# File 'lib/spring/test/application.rb', line 87

def spring_config
  path "config/spring.rb"
end

#spring_test_command ⇒ Object 



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# File 'lib/spring/test/application.rb', line 66

def spring_test_command
  "#{rails_version.test_command} #{test}"
end

#stderr ⇒ Object 



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# File 'lib/spring/test/application.rb', line 23

def stderr
  @stderr ||= IO.pipe
end

#stdout ⇒ Object 



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# File 'lib/spring/test/application.rb', line 19

def stdout
  @stdout ||= IO.pipe
end

#stop_spring ⇒ Object 



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# File 'lib/spring/test/application.rb', line 70

def stop_spring
  run "#{spring} stop"
rescue Errno::ENOENT
end

#test ⇒ Object 



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# File 'lib/spring/test/application.rb', line 75

def test
  path "test/#{rails_version.controller_tests_dir}/posts_controller_test.rb"
end

#timing_ratio ⇒ Object 



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# File 'lib/spring/test/application.rb', line 138

def timing_ratio
  last_time / first_time
end

#user_home ⇒ Object 



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# File 'lib/spring/test/application.rb', line 54

def user_home
  path "user_home"
end

#with_timing ⇒ Object 



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# File 'lib/spring/test/application.rb', line 123

def with_timing
  @times = []
  yield
ensure
  @times = nil
end