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# Copyright, 2017, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require_relative 'leaks'
require 'kernel/sync'
require 'kernel/async'
require 'async/reactor'
require 'async/task'
module Async
module RSpec
module Reactor
def notify_failure(exception = $!)
::RSpec::Support.notify_failure(exception)
end
def run_in_reactor(reactor, duration = nil)
result = nil
timer_task = nil
if duration
timer_task = reactor.async do |task|
# Wait for the timeout, at any point this task might be cancelled if the user code completes:
task.annotate("Timer task duration=#{duration}.")
task.sleep(duration)
# The timeout expired, so generate an error:
buffer = StringIO.new
reactor.print_hierarchy(buffer)
# Raise an error so it is logged:
raise TimeoutError, "Run time exceeded duration #{duration}s:\n#{buffer.string}"
end
end
spec_task = reactor.async do |spec_task|
spec_task.annotate("running example")
result = yield(spec_task)
# We are finished, so stop the timer task if it was started:
timer_task&.stop
# Now stop the entire reactor:
raise Async::Stop
end
begin
timer_task&.wait
spec_task.wait
ensure
spec_task.stop
end
return result
end
end
::RSpec.shared_context Reactor do
include Reactor
let(:reactor) {@reactor}
include_context Async::RSpec::Leaks
around(:each) do |example|
duration = example.metadata.fetch(:timeout, 10)
begin
Sync do |task|
@reactor = task.reactor
task.annotate(self.class)
run_in_reactor(@reactor, duration) do
example.run
end
ensure
@reactor = nil
end
end
end
end
end
end
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