Class: RSpec::Rewind::RetryLoop

Inherits:
Object
  • Object
show all
Defined in:
lib/rspec/rewind/retry_loop.rb

Instance Method Summary collapse

Constructor Details

#initialize(example:, context:, retry_count_resolver:, attempt_runner:, retry_gate:, retry_transition:, flaky_transition:, clock: nil) ⇒ RetryLoop

Returns a new instance of RetryLoop.



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# File 'lib/rspec/rewind/retry_loop.rb', line 6

def initialize(
  example:,
  context:,
  retry_count_resolver:,
  attempt_runner:,
  retry_gate:,
  retry_transition:,
  flaky_transition:,
  clock: nil
)
  @example = example
  @context = context
  @retry_count_resolver = retry_count_resolver
  @attempt_runner = attempt_runner
  @retry_gate = retry_gate
  @retry_transition = retry_transition
  @flaky_transition = flaky_transition
  @clock = clock || -> { Process.clock_gettime(Process::CLOCK_MONOTONIC) }
end

Instance Method Details

#run(retries:, backoff:, wait:, retry_on:, skip_retry_on:, retry_if:) ⇒ Object 



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# File 'lib/rspec/rewind/retry_loop.rb', line 26

def run(retries:, backoff:, wait:, retry_on:, skip_retry_on:, retry_if:)
  resolved_retries = @retry_count_resolver.resolve(explicit_retries: retries)
  return @example.run if resolved_retries <= 0

  total_attempts = resolved_retries + 1
  attempt = 1
  first_exception = nil
  first_failure_duration = nil
  attempt_durations = []
  sleep_total = 0.0
  started_at = monotonic_time

  while attempt <= total_attempts
    exception, duration, raised = @attempt_runner.run(
      run_target: @example,
      exception_source: @context.source
    )
    attempt_durations << duration

    if exception.nil?
      if attempt > 1
        @flaky_transition.perform(
          attempt: attempt,
          retries: resolved_retries,
          duration: duration,
          exception: first_exception,
          total_duration: monotonic_time - started_at,
          attempt_durations: attempt_durations.dup,
          first_failure_duration: first_failure_duration,
          sleep_total: sleep_total
        )
      end
      return
    end

    first_exception ||= exception
    first_failure_duration ||= duration
    retry_number = attempt
    decision = @retry_gate.decision(
      exception: exception,
      retry_number: retry_number,
      resolved_retries: resolved_retries,
      retry_on: retry_on,
      skip_retry_on: skip_retry_on,
      retry_if: retry_if,
      example_id: @context.id,
      elapsed_time: monotonic_time - started_at,
      sleep_total: sleep_total
    )
    unless decision.allowed?
      @retry_transition.publish_not_retried(
        retry_number: retry_number,
        resolved_retries: resolved_retries,
        duration: duration,
        exception: exception,
        decision: decision,
        total_duration: monotonic_time - started_at,
        attempt_durations: attempt_durations.dup,
        sleep_total: sleep_total
      )
      raise exception if raised

      return
    end

    sleep_measurement = @retry_transition.perform(
      retry_number: retry_number,
      resolved_retries: resolved_retries,
      duration: duration,
      exception: exception,
      backoff: backoff,
      wait: wait,
      example_source: @context.source,
      total_duration: monotonic_time - started_at,
      attempt_durations: attempt_durations.dup,
      sleep_total: sleep_total,
      failure_fingerprint: FailureFingerprint.build(exception),
      budget_decision: decision.budget_decision,
      policy_decision: decision.policy_decision
    )
    sleep_total += sleep_measurement.actual

    attempt += 1
  end
end