Class: TurboTests::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/turbo_tests/runner.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**opts) ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/turbo_tests/runner.rb', line 120

def initialize(**opts)
  @formatters = opts[:formatters]
  @reporter = opts[:reporter]
  @files = opts[:files]
  @tags = opts[:tags]
  @verbose = opts[:verbose]
  @fail_fast = opts[:fail_fast]
  @start_time = opts[:start_time]
  @count = opts[:count]
  @seed = opts[:seed]
  @seed_used = opts[:seed_used]
  @order = opts[:order]
  @nice = opts[:nice]
  @use_runtime_info = opts[:use_runtime_info]

  @load_time = 0
  @load_count = 0
  @failure_count = 0

  # Supports runtime_log as a top level option,
  #   but also nested inside parallel_options
  @runtime_log = opts[:runtime_log] || "tmp/turbo_rspec_runtime.log"
  @parallel_options = opts.fetch(:parallel_options, {})
  @parallel_options[:runtime_log] ||= @runtime_log
  @record_runtime = @parallel_options[:group_by] == :runtime

  @messages = Thread::Queue.new
  @threads = []
  @wait_threads = []
  @exited_process_ids = []
  @worker_output = Hash.new { |hash, process_id| hash[process_id] = {stdout: +"", stderr: +""} }
  @worker_output_mutex = Mutex.new
  @error = false
  @print_failed_group = opts[:print_failed_group]
end

Class Method Details

.create(count) ⇒ Object 



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# File 'lib/turbo_tests/runner.rb', line 15

def create(count)
  # We are unable to load parallel tests' tasks in the normal way (top of file)
  # because it requires that the Rails.application instance already be configured
  require "parallel_tests/tasks"

  ENV["PARALLEL_TEST_FIRST_IS_1"] = "true"
  command = ["bundle", "exec", "rake", "db:create", "RAILS_ENV=#{ParallelTests::Tasks.rails_env}"]
  args = {count: count.to_s}
  ParallelTests::Tasks.run_in_parallel(command, args)
end

.generate_seed ⇒ Object 



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# File 'lib/turbo_tests/runner.rb', line 105

def generate_seed
  (Random.new_seed % 65_535).to_s
end

.normalize_order(order) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/turbo_tests/runner.rb', line 97

def normalize_order(order)
  order = order.to_s.strip.downcase
  return "random" if order.empty?
  return order if %w[random defined].include?(order)

  raise ArgumentError, "Unsupported order #{order.inspect}; use random or defined"
end

.rspec_configured_files_to_run ⇒ Object 



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# File 'lib/turbo_tests/runner.rb', line 109

def rspec_configured_files_to_run
  configuration = RSpec::Core::Configuration.new
  RSpec::Core::ConfigurationOptions.new(["spec"]).configure(configuration)
  root = "#{Dir.pwd}/"
  configuration.files_to_run.map do |path|
    path = path.to_s
    path.start_with?(root) ? path[root.length..-1] : path
  end
end

.run(opts = {}) ⇒ Object 



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# File 'lib/turbo_tests/runner.rb', line 26

def run(opts = {})
  default_file_discovery = !opts.key?(:files) || opts[:files].nil?
  files = default_file_discovery ? rspec_configured_files_to_run : opts[:files]
  formatters = opts[:formatters]
  tags = opts[:tags]
  parallel_options = opts[:parallel_options] || {}

  start_time = opts.fetch(:start_time) { RSpec::Core::Time.now }
  runtime_log = opts.fetch(:runtime_log, nil)
  example_status_log = opts.fetch(:example_status_log, nil)
  verbose = opts.fetch(:verbose, false)
  fail_fast = opts.fetch(:fail_fast, nil)
  count = opts.fetch(:count, nil)
  order = normalize_order(opts.fetch(:order, nil))
  seed = opts.fetch(:seed, nil)
  seed_used = order != "defined"
  seed = generate_seed if seed_used && seed.nil?
  print_failed_group = opts.fetch(:print_failed_group, false)
  nice = opts.fetch(:nice, false)

  use_runtime_info = default_file_discovery

  if example_status_log
    runtime_log = runtime_log_from_example_status(example_status_log)
    parallel_options[:runtime_log] = runtime_log
  elsif use_runtime_info
    parallel_options[:runtime_log] = runtime_log
  else
    parallel_options[:group_by] = :filesize
  end

  warn("VERBOSE") if verbose

  reporter = Reporter.from_config(formatters, start_time, seed, seed_used, files, parallel_options)

  new(
    reporter: reporter,
    formatters: formatters,
    start_time: start_time,
    files: files,
    tags: tags,
    runtime_log: runtime_log,
    example_status_log: example_status_log,
    verbose: verbose,
    fail_fast: fail_fast,
    count: count,
    seed: seed,
    seed_used: seed_used,
    order: order,
    print_failed_group: print_failed_group,
    use_runtime_info: use_runtime_info,
    parallel_options: parallel_options,
    nice: nice
  ).run
end

.runtime_log_from_example_status(example_status_log) ⇒ Object 



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# File 'lib/turbo_tests/runner.rb', line 82

def runtime_log_from_example_status(example_status_log)
  statuses = RSpec::Core::ExampleStatusPersister.load_from(example_status_log)
  runtimes = statuses.each_with_object(Hash.new(0.0)) do |status, sums|
    next unless status.fetch(:status).match?(/pass/i)

    file_name = RSpec::Core::Example.parse_id(status.fetch(:example_id)).first
    sums[file_name] += status.fetch(:run_time).to_s[/\d+(\.\d+)?/].to_f
  end

  path = File.join("tmp", "turbo_tests2_example_status_runtime.log")
  FileUtils.mkdir_p(File.dirname(path))
  File.write(path, runtimes.sort.map { |file, runtime| "#{file}:#{runtime}" }.join("\n"))
  path
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/turbo_tests/runner.rb', line 156

def run
  tests_with_size = ParallelTests::RSpec::Runner.tests_with_size(@files, {})
  @num_processes = [
    ParallelTests.determine_number_of_processes(@count),
    tests_with_size.size
  ].min

  if @num_processes.zero?
    @tests_in_groups = []
    @reporter.report([]) { |_reporter| }
    return 0
  end

  tests_in_groups =
    ParallelTests::RSpec::Runner.tests_in_groups(
      @files,
      @num_processes,
      **@parallel_options
    )
  @tests_in_groups = tests_in_groups

  subprocess_opts = {
    record_runtime: @record_runtime
  }

  ParallelTests.with_pid_file do
    exit_status = nil
    report_coverage = false

    @reporter.report(tests_in_groups) do |_reporter|
      old_signal = Signal.trap(:INT) { handle_interrupt }

      @wait_threads = tests_in_groups.map.with_index do |tests, process_id|
        start_regular_subprocess(tests, process_id + 1, **subprocess_opts)
      end.compact
      @interrupt_handled = false

      handle_messages

      @threads.each(&:join)

      report_failed_group(tests_in_groups) if @print_failed_group

      Signal.trap(:INT, old_signal)

      statuses = @wait_threads.map(&:value)

      if @reporter.failed_examples.empty? && statuses.all?(&:success?)
        report_coverage = true
        exit_status = 0
      else
        flush_worker_output
        # From https://github.com/galtzo-floss/turbo_tests2/pull/20/
        exit_status = statuses.map(&:exitstatus).max
      end
    end

    flush_coverage_summary if report_coverage
    exit_status
  end
end