# NOT RUN {
test_with_dir("Quarantine side effects.", {
# Write shell.sh to your working directory.
# Read the high-performance computing chapter
# (https://ropenscilabs.github.io/drake-manual/hpc.html)
# to learn how it is used
# in Makefile parallelism.
shell_file()
})
# }
Run the code above in your browser using DataCamp Workspace