Class: Polyrun::Timing::RSpecExampleFormatter

Inherits:
RSpec::Core::Formatters::BaseFormatter
  • Object
show all
Defined in:
lib/polyrun/timing/rspec_example_formatter.rb

Overview

Experimental: records absolute_path:line_number => wall seconds per example for Partition::Plan timing_granularity: :example and merge-timing.

Use after RSpec is loaded:

require "polyrun/timing/rspec_example_formatter"
RSpec.configure { |c| c.add_formatter Polyrun::Timing::RSpecExampleFormatter }

Or RSpec.install_example_timing! (output_path: avoids touching ENV).

Default output path: ENV if set, else polyrun_timing_examples.json.

Instance Method Summary collapse

Constructor Details

#initialize(output) ⇒ RSpecExampleFormatter

Returns a new instance of RSpecExampleFormatter.



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# File 'lib/polyrun/timing/rspec_example_formatter.rb', line 19

def initialize(output)
  super
  @times = {}
end

Instance Method Details

#close(_notification) ⇒ Object 



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# File 'lib/polyrun/timing/rspec_example_formatter.rb', line 43

def close(_notification)
  File.write(timing_output_path, JSON.pretty_generate(@times))
end

#example_finished(notification) ⇒ Object 



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# File 'lib/polyrun/timing/rspec_example_formatter.rb', line 24

def example_finished(notification)
  ex = notification.example
  result = ex.execution_result
  return if result.pending?

  t = result.run_time
  return unless t

  path = ex.metadata[:absolute_path]
  return unless path

  line = ex.metadata[:line_number]
  return unless line

  key = "#{File.expand_path(path)}:#{line}"
  cur = @times[key]
  @times[key] = cur ? [cur, t].max : t
end

#timing_output_path ⇒ Object

Override in a subclass from …).



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# File 'lib/polyrun/timing/rspec_example_formatter.rb', line 48

def timing_output_path
  ENV["POLYRUN_EXAMPLE_TIMING_OUT"] || "polyrun_timing_examples.json"
end