Class: Minitest::Parallel::Executor

Inherits:
Object
  • Object
show all
Defined in:
lib/minitest/parallel.rb

Overview

The engine used to run multiple tests in parallel.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(size) ⇒ Executor

Create a parallel test executor of with size workers.



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# File 'lib/minitest/parallel.rb', line 17

def initialize size
  @size  = size
  @queue = Thread::Queue.new
  @pool  = nil
end

Instance Attribute Details

#size ⇒ Object (readonly)

The size of the pool of workers.



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# File 'lib/minitest/parallel.rb', line 12

def size
  @size
end

Instance Method Details

#<<(work) ⇒ Object

Add a job to the queue



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# File 'lib/minitest/parallel.rb', line 43

def << work; @queue << work; end

#shutdown ⇒ Object

Shuts down the pool of workers by signalling them to quit and waiting for them all to finish what they’re currently working on.



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# File 'lib/minitest/parallel.rb', line 50

def shutdown
  size.times { @queue << nil }
  @pool.each(&:join)
end

#start ⇒ Object

Start the executor



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# File 'lib/minitest/parallel.rb', line 26

def start
  @pool  = Array.new(size) {
    Thread.new @queue do |queue|
      Thread.current.abort_on_exception = true
      while job = queue.pop do
        klass, method, reporter = job
        reporter.synchronize { reporter.prerecord klass, method }
        result = Minitest.run_one_method klass, method
        reporter.synchronize { reporter.record result }
      end
    end
  }
end