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author | Father Chrysostomos <sprout@cpan.org> | 2012-01-19 18:25:53 -0800 |
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committer | Father Chrysostomos <sprout@cpan.org> | 2012-01-19 22:38:36 -0800 |
commit | 66ad6b0e59b2bd380bf0a09a63b25d333de52323 (patch) | |
tree | d6c205a6658040fa498ba6b91aac5a601c160169 | |
parent | 84da5602d79c53542bee8b70ec90a6130da1175e (diff) | |
download | perl-66ad6b0e59b2bd380bf0a09a63b25d333de52323.tar.gz |
PerlIO::scalar: tests for trailing null
using Eric Brine’s function.
-rw-r--r-- | ext/PerlIO-scalar/t/scalar.t | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/ext/PerlIO-scalar/t/scalar.t b/ext/PerlIO-scalar/t/scalar.t index 48883b6a78..ccf66dd9e8 100644 --- a/ext/PerlIO-scalar/t/scalar.t +++ b/ext/PerlIO-scalar/t/scalar.t @@ -16,7 +16,7 @@ use Fcntl qw(SEEK_SET SEEK_CUR SEEK_END); # Not 0, 1, 2 everywhere. $| = 1; -use Test::More tests => 76; +use Test::More tests => 79; my $fh; my $var = "aaa\n"; @@ -318,6 +318,7 @@ EOF pass 'seeking on a glob copy from the end'; } +# [perl #108398] sub has_trailing_nul(\$) { my ($ref) = @_; my $sv = B::svref_2object($ref); @@ -331,3 +332,25 @@ sub has_trailing_nul(\$) { my $trailing = unpack 'P', pack 'J', $pv_addr+$cur; return $trailing eq "\0"; } +SKIP: { + if ($Config::Config{'extensions'} !~ m!\bPerlIO/scalar\b!) { + skip "no B", 1; + } + require B; + + open my $fh, ">", \my $memfile or die $!; + + print $fh "abc"; + ok has_trailing_nul $memfile, + 'write appends trailing null when growing string'; + + seek $fh, 0,SEEK_SET; + print $fh "abc"; + ok has_trailing_nul $memfile, + 'write appends trailing null when not growing string'; + + seek $fh, 200, SEEK_SET; + print $fh "abc"; + ok has_trailing_nul $memfile, + 'write appends null when growing string after seek past end'; +} |