Test::More failing test with equal strings

Question

Using perl 5.16 with the latest Test::More module.

I got a unit test being called like

is($ret, "ssh: connect to host 1.2.3.187 port 22: Network is unreachable\nCouldn't read packet: Connection reset by peer\n", "putFileWithSFTP bad server ret test");

Running the test fails with the following result:

#   Failed test 'putFileWithSFTP bad server ret test'
#   at t/Backup.t line 891.
#          got: 'ssh: connect to host 1.2.3.187 port 22: Network is unreachable
# Couldn't read packet: Connection reset by peer
# '
#     expected: 'ssh: connect to host 1.2.3.187 port 22: Network is unreachable
# Couldn't read packet: Connection reset by peer
# '

The strings should be equal and they also look like they are equal. What could be the cause of this?

MSWin line ends or some other invisible characters? Try running the strings through `join " ", map ord, split //, $string` or something similar. — choroba, Oct 17 '22 at 09:24
Was (for whatever reason) MSWin line endings. Found it when comparing the hexdump. Writing an answer right now. — noah, Oct 17 '22 at 09:31

score 2 · Accepted Answer · answered Oct 17 '22 at 09:37

2

I figured it out:

When comparing the two strings with a hexdump, I noticed that, for whatever reason, the ssh ouput in $ret contains MSWin Line Endings, which I didn't include in my comparison.

Test::More failing test with equal strings

1 Answers1