diff options
| -rw-r--r-- | ext/PerlIO-scalar/t/scalar.t | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/ext/PerlIO-scalar/t/scalar.t b/ext/PerlIO-scalar/t/scalar.t index 3be26c5c8c..833bb20c4c 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 => 101; +use Test::More tests => 108; my $fh; my $var = "aaa\n"; @@ -436,4 +436,28 @@ my $byte_warning = "Strings with code points over 0xFF may not be mapped into in seek($fh, 1, SEEK_SET); is(read($fh, $tmp, 1), undef, "read from scalar with >0xff chars"); is_deeply(\@warnings, [ $byte_warning ], "check warning"); + + select $fh; # make sure print fails rather tha buffers + $| = 1; + select STDERR; + no warnings "utf8"; + @warnings = (); + $content = "\xA1\xA2\xA3"; + utf8::upgrade($content); + seek($fh, 1, SEEK_SET); + ok((print $fh "A"), "print to an upgraded byte string"); + seek($fh, 1, SEEK_SET); + local $TODO = "write to utf8 flagged strings is broken"; + is($content, "\xA1A\xA3", "check result"); + + $content = "\x{101}\x{102}\x{103}"; + $! = 0; + ok(!(print $fh "B"), "write to an non-downgradable SV"); + is(0+$!, EINVAL, "check errno set"); + + is_deeply(\@warnings, [], "should be no warning"); + + use warnings "utf8"; + ok(!(print $fh "B"), "write to an non-downgradable SV (and warn)"); + is_deeply(\@warnings, [ $byte_warning ], "check warning"); } |