Module: RunLoop

Defined in:
lib/run_loop.rb,
lib/run_loop/app.rb,
lib/run_loop/ipa.rb,
lib/run_loop/core.rb,
lib/run_loop/fifo.rb,
lib/run_loop/lipo.rb,
lib/run_loop/lldb.rb,
lib/run_loop/device.rb,
lib/run_loop/cli/cli.rb,
lib/run_loop/logging.rb,
lib/run_loop/version.rb,
lib/run_loop/xctools.rb,
lib/run_loop/directory.rb,
lib/run_loop/cli/errors.rb,
lib/run_loop/cli/simctl.rb,
lib/run_loop/host_cache.rb,
lib/run_loop/cache/cache.rb,
lib/run_loop/environment.rb,
lib/run_loop/instruments.rb,
lib/run_loop/plist_buddy.rb,
lib/run_loop/sim_control.rb,
lib/run_loop/simctl/plists.rb,
lib/run_loop/dylib_injector.rb,
lib/run_loop/process_waiter.rb,
lib/run_loop/cli/instruments.rb,
lib/run_loop/patches/retriable.rb,
lib/run_loop/process_terminator.rb

Defined Under Namespace

Modules: CLI, Core, Fifo, Simctl Classes: App, Device, Directory, Environment, IncompatibleArchitecture, Instruments, Ipa, LLDB, Lipo, Logging, PlistBuddy, ProcessTerminator, ProcessWaiter, RetryOpts, SimControl, TimeoutError, Version, WriteFailedError, XCTools

Constant Summary collapse

VERSION = 
'1.4.1'

Class Method Summary collapse

Class Method Details

.default_script_for_uia_strategy(uia_strategy) ⇒ Object 



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# File 'lib/run_loop.rb', line 162

def self.default_script_for_uia_strategy(uia_strategy)
  case uia_strategy
    when :preferences
      Core.script_for_key(:run_loop_fast_uia)
    when :host
      Core.script_for_key(:run_loop_host)
    when :shared_element
      Core.script_for_key(:run_loop_shared_element)
    else
      Core.script_for_key(:run_loop_basic)
  end
end

.log_info(*args) ⇒ Object 



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# File 'lib/run_loop.rb', line 191

def self.log_info(*args)
  RunLoop::Logging.log_info(*args)
end

.run(options = {}) ⇒ Object 



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# File 'lib/run_loop.rb', line 34

def self.run(options={})

  if RunLoop::Instruments.new.instruments_app_running?
    msg =
        [
            "Please quit the Instruments.app.",
            "If Instruments.app is open, the instruments command line",
            "tool cannot take control of your application."
        ]
    raise msg.join("\n")
  end

  uia_strategy = options[:uia_strategy]
  if options[:script]
    script = validate_script(options[:script])
  else
    if uia_strategy
      script = default_script_for_uia_strategy(uia_strategy)
    else
      if options[:calabash_lite]
        uia_strategy = :host
        script = Core.script_for_key(:run_loop_host)
      else
        uia_strategy = :preferences
        script = default_script_for_uia_strategy(uia_strategy)
      end
    end
  end
  # At this point, 'script' has been chosen, but uia_strategy might not
  unless uia_strategy
    desired_script = options[:script]
    if desired_script.is_a?(String) #custom path to script
      uia_strategy = :host
    elsif desired_script == :run_loop_host
      uia_strategy = :host
    elsif desired_script == :run_loop_fast_uia
      uia_strategy = :preferences
    elsif desired_script == :run_loop_shared_element
      uia_strategy = :shared_element
    else
      raise "Inconsistent state: desired script #{desired_script} has not uia_strategy"
    end
  end
  # At this point script and uia_strategy selected

  options[:script] = script
  options[:uia_strategy] = uia_strategy

  Core.run_with_options(options)
end

.send_command(run_loop, cmd, options = {timeout: 60}, num_retries = 0, last_error = nil) ⇒ Object 



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# File 'lib/run_loop.rb', line 85

def self.send_command(run_loop, cmd, options={timeout: 60}, num_retries=0, last_error=nil)
  if num_retries > 3
    if last_error
      raise last_error
    else
      raise "Max retries exceeded #{num_retries} > 3. No error recorded."
    end
  end

  if options.is_a?(Numeric)
    options = {timeout: options}
  end

  if not cmd.is_a?(String)
    raise "Illegal command #{cmd} (must be a string)"
  end

  if not options.is_a?(Hash)
    raise "Illegal options #{options} (must be a Hash (or number for compatibility))"
  end

  timeout = options[:timeout] || 60
  logger = options[:logger]
  interrupt_retry_timeout = options[:interrupt_retry_timeout] || 25

  expected_index = run_loop[:index]
  result = nil
  begin
    expected_index = Core.write_request(run_loop, cmd, logger)
  rescue RunLoop::WriteFailedError, Errno::EINTR => write_error
    # Attempt recover from interrupt by attempting to read result (assuming write went OK)
    # or retry if attempted read result fails
    run_loop[:index] = expected_index # restore expected index in case it changed
    log_info(logger, "Core.write_request failed: #{write_error}. Attempting recovery...")
    log_info(logger, "Attempting read in case the request was received... Please wait (#{interrupt_retry_timeout})...")
    begin
      Timeout::timeout(interrupt_retry_timeout, TimeoutError) do
        result = Core.read_response(run_loop, expected_index)
      end
      # Update run_loop expected index since we succeeded in reading the index
      run_loop[:index] = expected_index + 1
      log_info(logger, "Did read response for interrupted request of index #{expected_index}... Proceeding.")
      return result
    rescue TimeoutError => _
      log_info(logger, "Read did not result in a response for index #{expected_index}... Retrying send_command...")
      return send_command(run_loop, cmd, options, num_retries+1, write_error)
    end
  end


  begin
    Timeout::timeout(timeout, TimeoutError) do
      result = Core.read_response(run_loop, expected_index)
    end
  rescue TimeoutError => _
    raise TimeoutError, "Time out waiting for UIAutomation run-loop for command #{cmd}. Waiting for index:#{expected_index}"
  end

  result
end

.stop(run_loop, out = Dir.pwd) ⇒ Object 



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# File 'lib/run_loop.rb', line 146

def self.stop(run_loop, out=Dir.pwd)
  return if run_loop.nil?
  results_dir = run_loop[:results_dir]
  dest = out

  RunLoop::Instruments.new.kill_instruments

  FileUtils.mkdir_p(dest)
  if results_dir
    pngs = Dir.glob(File.join(results_dir, 'Run 1', '*.png'))
  else
    pngs = []
  end
  FileUtils.cp(pngs, dest) if pngs and pngs.length > 0
end

.validate_script(script) ⇒ Object 



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# File 'lib/run_loop.rb', line 175

def self.validate_script(script)
  if script.is_a?(String)
    unless File.exist?(script)
      raise "Unable to find file: #{script}"
    end
  elsif script.is_a?(Symbol)
    script = Core.script_for_key(script)
    unless script
      raise "Unknown script for symbol: #{script}. Options: #{Core::SCRIPTS.keys.join(', ')}"
    end
  else
    raise "Script must be a symbol or path: #{script}"
  end
  script
end