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t/010-jobserver: add serial/parallel override tests.

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This new test validates that you can pass -j1 and -j2 in a sub-redo to
create a sub-jobserver with exactly the number of jobs you specified.
Now that we have that feature, we can also test for the bug fixed two
commits ago where, with -j1, targets would be built in an unexpected
order.
This commit is contained in:
Avery Pennarun 2018-12-31 17:43:03 -05:00
commit 87bac287b6
14 changed files with 87 additions and 2 deletions
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t/010-jobserver/all.do Normal file
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# We put the -j options at this toplevel to detect an earlier bug
# where the sub-jobserver wasn't inherited by sub-sub-processes, which
# accidentally reverted to the parent jobserver instead.
redo -j1 serialtest
# Capture log output to parallel.log to hide the (intentional since we're
# testing it) scary warning from redo about overriding the jobserver.
echo 'parallel test...' >&2
if ! redo -j10 paralleltest 2>parallel.log; then
cat parallel.log >&2
exit 99
fi