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|
#!./perl
#line 3 warn.t
BEGIN {
chdir 't' if -d 't';
require './test.pl';
set_up_inc('../lib');
}
plan 32;
my @warnings;
my $wa = []; my $ea = [];
$SIG{__WARN__} = sub { push @warnings, $_[0] };
@warnings = ();
$@ = "";
warn "foo\n";
ok @warnings==1 && $warnings[0] eq "foo\n";
@warnings = ();
$@ = "";
warn "foo", "bar\n";
ok @warnings==1 && $warnings[0] eq "foobar\n";
@warnings = ();
$@ = "";
warn "foo";
ok @warnings==1 && $warnings[0] eq "foo at warn.t line 28.\n";
@warnings = ();
$@ = "";
warn $wa;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $wa;
@warnings = ();
$@ = "";
warn "";
ok @warnings==1 &&
$warnings[0] eq "Warning: something's wrong at warn.t line 38.\n";
@warnings = ();
$@ = "";
warn;
ok @warnings==1 &&
$warnings[0] eq "Warning: something's wrong at warn.t line 44.\n";
@warnings = ();
$@ = "ERR\n";
warn "foo\n";
ok @warnings==1 && $warnings[0] eq "foo\n";
@warnings = ();
$@ = "ERR\n";
warn "foo", "bar\n";
ok @warnings==1 && $warnings[0] eq "foobar\n";
@warnings = ();
$@ = "ERR\n";
warn "foo";
ok @warnings==1 && $warnings[0] eq "foo at warn.t line 60.\n";
@warnings = ();
$@ = "ERR\n";
warn $wa;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $wa;
@warnings = ();
$@ = "ERR\n";
warn "";
ok @warnings==1 &&
$warnings[0] eq "ERR\n\t...caught at warn.t line 70.\n";
@warnings = ();
$@ = "ERR\n";
warn;
ok @warnings==1 &&
$warnings[0] eq "ERR\n\t...caught at warn.t line 76.\n";
@warnings = ();
$@ = $ea;
warn "foo\n";
ok @warnings==1 && $warnings[0] eq "foo\n";
@warnings = ();
$@ = $ea;
warn "foo", "bar\n";
ok @warnings==1 && $warnings[0] eq "foobar\n";
@warnings = ();
$@ = $ea;
warn "foo";
ok @warnings==1 && $warnings[0] eq "foo at warn.t line 92.\n";
@warnings = ();
$@ = $ea;
warn $wa;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $wa;
@warnings = ();
$@ = $ea;
warn "";
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $ea;
@warnings = ();
$@ = $ea;
warn;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $ea;
fresh_perl_like(
'
$a = "\xee\n";
print STDERR $a; warn $a;
utf8::upgrade($a);
print STDERR $a; warn $a;
',
qr/^\xee(?:\r?\n\xee){3}/,
{ switches => [ "-C0" ] },
'warn emits logical characters, not internal bytes [perl #45549]'
);
SKIP: {
skip_if_miniperl('miniperl ignores -C', 1);
fresh_perl_like(
'
$a = "\xee\n";
print STDERR $a; warn $a;
utf8::upgrade($a);
print STDERR $a; warn $a;
',
qr/^\xc3\xae(?:\r?\n\xc3\xae){3}/,
{ switches => ['-CE'] },
'warn respects :utf8 layer'
);
}
fresh_perl_like(
'warn chr 300',
qr/^Wide character in warn .*\n\xc4\xac at /,
{ switches => [ "-C0" ] },
'Wide character in warn (not print)'
);
fresh_perl_like(
'warn []',
qr/^ARRAY\(0x[\da-f]+\) at /a,
{ },
'warn stringifies in the absence of $SIG{__WARN__}'
);
use Tie::Scalar;
tie $@, "Tie::StdScalar";
$@ = "foo\n";
@warnings = ();
warn;
is @warnings, 1;
like $warnings[0], qr/^foo\n\t\.\.\.caught at warn\.t /,
'...caught is appended to tied $@';
$@ = \$_;
@warnings = ();
{
local *{ref(tied $@) . "::STORE"} = sub {};
undef $@;
}
warn;
is @warnings, 1;
is $warnings[0], \$_, '!SvOK tied $@ that returns ref is used';
untie $@;
@warnings = ();
{
package o;
use overload '""' => sub { "" };
}
tie $t, Tie::StdScalar;
$t = bless [], o;
{
local *{ref(tied $t) . "::STORE"} = sub {};
undef $t;
}
warn $t;
is @warnings, 1;
object_ok $warnings[0], 'o',
'warn $tie_returning_object_that_stringifes_emptily';
@warnings = ();
eval "#line 42 Cholmondeley\n \$\@ = '3'; warn";
eval "#line 42 Cholmondeley\n \$\@ = 3; warn";
is @warnings, 2;
is $warnings[1], $warnings[0], 'warn treats $@=3 and $@="3" the same way';
fresh_perl_is(<<'EOF', "should be line 4 at - line 4.\n", {stderr => 1}, "");
${
foo
} = "should be line 4";
warn $foo;
EOF
TODO: {
local $::TODO = "Line numbers don't yet match up for \${ EXPR }";
my $expected = <<'EOF';
line 1 at - line 1.
line 4 at - line 3.
also line 4 at - line 4.
line 5 at - line 5.
EOF
fresh_perl_is(<<'EOF', $expected, {stderr => 1}, "");
warn "line 1";
(${
foo
} = "line 5") && warn("line 4"); warn("also line 4");
warn $foo;
EOF
}
1;
|
