| Subject: | tests do not run in parallel |
It looks like the tests are re-using the same files across multiple tests, so when they are run in parallel (e.g. when HARNESS_OPTIONS=j9, or "prove -b -r -j9 t", they stomp on each other and cause failures.
You should instead use unique temp files/directories for each test, e.g. via File::Temp or Test::TempDir::Tiny.
sample test output:
PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
# sftp-server found at /usr/bin/../lib/sftp-server
# sftp-server found at /usr/bin/../lib/sftp-server
t/5_join.t ................... ok
# sftp-server found at /usr/bin/../lib/sftp-server
t/Net-SFTP-Foreign-Compat.t .. ok
t/4_perl5_11.t ............... ok
# Failed test 'readdir array 1 - /home/vagrant/.cpanm/work/1423072806.20589/Net-SFTP-Foreign-1.77/t'
# at t/1_run.t line 317.
# got: '1_run.t 3_convert.t 4_perl5_11.t 5_join.t Net-SFTP-Foreign-Compat.t common.pm copied.txd data.r data.txd data.txu'
# expected: '1_run.t 3_convert.t 4_perl5_11.t 5_join.t Net-SFTP-Foreign-Compat.t common.pm copied.txd copied.txu data.r data.txd data.txu'
# Failed test 'ls'
# at t/1_run.t line 321.
# got: '1_run.t 3_convert.t 4_perl5_11.t 5_join.t Net-SFTP-Foreign-Compat.t common.pm copied.txd data.r data.txd data.txu'
# expected: '1_run.t 3_convert.t 4_perl5_11.t 5_join.t Net-SFTP-Foreign-Compat.t common.pm copied.txd copied.txu data.r data.txd data.txu'
# Failed test 'find 1'
# at t/1_run.t line 336.
# got: '1_run.t|3_convert.t|4_perl5_11.t|5_join.t|Net-SFTP-Foreign-Compat.t|common.pm|copied.txd|data.r|data.txd|data.txu|t'
# expected: '1_run.t|3_convert.t|4_perl5_11.t|5_join.t|Net-SFTP-Foreign-Compat.t|common.pm|copied.txd|copied.txu|data.r|data.txd|data.txu|t'
# Failed test 'find 2'
# at t/1_run.t line 347.
# got: 't|1_run.t|3_convert.t|4_perl5_11.t|5_join.t|Net-SFTP-Foreign-Compat.t|common.pm|copied.txd|data.r|data.txd|data.txu'
# expected: 't|1_run.t|3_convert.t|4_perl5_11.t|5_join.t|Net-SFTP-Foreign-Compat.t|common.pm|copied.txd|copied.txu|data.r|data.txd|data.txu'
# Failed test 'glob'
# at t/1_run.t line 350.
# got: '10'
# expected: '9'
# Looks like you failed 5 tests of 811.
t/1_run.t ....................
Dubious, test returned 5 (wstat 1280, 0x500)
Failed 5/811 subtests
t/3_convert.t ................ ok
Test Summary Report
-------------------
t/1_run.t (Wstat: 1280 Tests: 811 Failed: 5)
Failed tests: 401, 403, 405-407
Non-zero exit status: 5
Files=5, Tests=1056, 1 wallclock secs ( 0.15 usr 0.02 sys + 0.99 cusr 1.27 csys = 2.43 CPU)
Result: FAIL