threads.jl
# This file is a part of Julia. License is MIT: https://julialang.org/license
using Test, Base.Threads
let p, cmd = `$(Base.julia_cmd()) --depwarn=error --startup-file=no threads_exec.jl`
# test both nthreads==1 and nthreads>1. spawn a process to test whichever
# case we are not running currently.
other_nthreads = nthreads() == 1 ? 4 : 1
p = run(pipeline(setenv(cmd, "JULIA_NUM_THREADS" => other_nthreads), stdout = stdout, stderr = stderr),
wait = false)
include("threads_exec.jl")
if !success(p)
error("threads test failed with nthreads == $other_nthreads")
end
end