How to rerun test while installing perl via perlbrew fails? - perl

Question

I installing perl-5.28.1 via perlbrew. Some tests fail:
../cpan/Tie-RefHash/t/storable.t ................................... ok
../cpan/Tie-RefHash/t/threaded.t ................................... skipped: -- threads aren't enabled in your perl, or Scalar::Util::weaken is missing
# Failed test 'timelocal year for 1970 1 2 0 0 0'
# at t/Local.t line 109.
# got: '170'
# expected: '70'
# Failed test 'timegm year for 1970 1 2 0 0 0'
# at t/Local.t line 124.
# got: '170'
# expected: '70'
# Looks like you failed 2 tests of 187.
../cpan/Time-Local/t/Local.t .......................................
Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/187 subtests
(less 8 skipped subtests: 177 okay)
../cpan/Time-Piece/t/01base.t ...................................... ok
...
Test Summary Report
-------------------
../cpan/Time-Local/t/Local.t (Wstat: 512 Tests: 187 Failed: 2)
Failed tests: 6, 12
Non-zero exit status: 2
Files=2653, Tests=1157584, 928 wallclock secs (116.85 usr 11.01 sys + 603.60 cusr 55.01 csys = 786.47 CPU)
Result: FAIL
makefile:835: recipe for target 'test_harness' failed
make: *** [test_harness] Error 2
##### Brew Failed #####
How to rerun only this failed test?

Answer 1

To run a single one of perl's test file, you can use
t/TEST ../cpan/Time-Local/t/Local.t
This would be run from the following directory:
cd "${PERLBREW_ROOT:-$HOME/perl5/perlbrew}"
cd build/perl-5.x.y/perl-5.x.y
See the What if make test doesn't work? section of the INSTALL file in the same folder for more on testing perl.