gems.minitest-5.18.1.lib.minitest.parallel.rb Maven / Gradle / Ivy
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module Minitest
module Parallel #:nodoc:
##
# The engine used to run multiple tests in parallel.
class Executor
##
# The size of the pool of workers.
attr_reader :size
##
# Create a parallel test executor of with +size+ workers.
def initialize size
@size = size
@queue = Queue.new
@pool = nil
end
##
# Start the executor
def start
@pool = size.times.map {
Thread.new(@queue) do |queue|
Thread.current.abort_on_exception = true
while (job = queue.pop)
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
##
# Add a job to the queue
def << work; @queue << work; end
##
# Shuts down the pool of workers by signalling them to quit and
# waiting for them all to finish what they're currently working
# on.
def shutdown
size.times { @queue << nil }
@pool.each(&:join)
end
end
module Test # :nodoc:
def _synchronize; Minitest::Test.io_lock.synchronize { yield }; end # :nodoc:
module ClassMethods # :nodoc:
def run_one_method klass, method_name, reporter
Minitest.parallel_executor << [klass, method_name, reporter]
end
def test_order
:parallel
end
end
end
end
end