[tpm] Riddle me this ...
James E Keenan
jkeen at verizon.net
Thu Dec 27 18:25:37 PST 2012
Shouldn't the outcome of a test be independent of whether the test has a
description/name/label or not?
First, try this at the command line:
$> perl -MTest::More -E 'is(! 1, not 1);is(! 0, not 0);done_testing;'
You should get:
... which is what I would expect.
But now, try this, which simply adds a description to each test:
$ perl -MTest::More -E 'is(! 1, not 1, "test1");is(! 0, not 0,
not ok 2
# Failed test at -e line 1.
# got: '1'
# expected: ''
# Looks like you failed 1 test of 2.
Neither test prints its description, and the second test now fails.
This is adapted from tests 4 and 5 in the Perl 5 core distribution's
t/op/not.t. Although that program uses t/test.pl instead of Test::More
(as above), the outcome is the same. (If you have a checkout and build
of blead, say: cd t; ./perl harness -v op/not.t)
There's something strange happening with operator precedence here. Can
anyone suss this out?
Thank you very much.
More information about the toronto-pm