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@subelsky
Last active March 4, 2016 18:42
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# This is how I'd use threads in rspec to test whether a shared state primitive works as expected
#(pessimistic database lock,advisory database lock, mutex, etc.)
around do |example|
die = false
lock_taker = Thread.new do
code_that_takes a lock do
loop do
break if die
sleep 0.1 # not strictly necessary but slows CPU churn
end
end
example.run
die = true
locker_taker.join
end
it "can't get an adivsory lock when alreaedy locked" do
code_that_also_takes_a_lock_but_fails
end
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