+{
+ package OverBoth;
+
+ use overload
+ q/""/ => sub { "TEST" },
+ -X => sub { "-$_[1]" };
+}
+{
+ package OverNeither;
+
+ # Need fallback. Previous versions of perl required 'fallback' to do
+ # -X operations on an object with no "" overload.
+ use overload
+ '+' => sub { 1 },
+ fallback => 1;
+}
+
+my $ft = bless [], "OverFtest";
+my $ftstr = qq($ft);
+my $str = bless [], "OverString";
+my $both = bless [], "OverBoth";
+my $neither = bless [], "OverNeither";
+my $nstr = qq($neither);
+
+open my $gv, "<", "TEST";
+bless $gv, "OverString";
+open my $io, "<", "TEST";
+$io = *{$io}{IO};
+bless $io, "OverString";
+
+my $fcntl_not_available;
+eval { require Fcntl } or $fcntl_not_available = 1;
+
+for my $op (split //, "rwxoRWXOezsfdlpSbctugkTMBAC") {
+ $over = [];
+ my $rv = eval "-$op \$ft";
+ isnt( $rv, undef, "overloaded -$op succeeds" )
+ or diag( $@ );
+ is( $over->[0], $ftstr, "correct object for overloaded -$op" );
+ is( $over->[1], $op, "correct op for overloaded -$op" );
+ is( $rv, "-$op", "correct return value for overloaded -$op");
+
+ my ($exp, $is) = (1, "is");
+ if (
+ !$fcntl_not_available and (
+ $op eq "u" and not eval { Fcntl::S_ISUID() } or
+ $op eq "g" and not eval { Fcntl::S_ISGID() } or
+ $op eq "k" and not eval { Fcntl::S_ISVTX() }
+ )
+ ) {
+ ($exp, $is) = (0, "not");
+ }
+
+ $over = 0;
+ $rv = eval "-$op \$str";
+ is($@, "", "-$op succeeds with string overloading");
+ is( $rv, eval "-$op 'TEST'", "correct -$op on string overload" );
+ is( $over, $exp, "string overload $is called for -$op" );
+
+ ($exp, $is) = $op eq "l" ? (1, "is") : (0, "not");
+
+ $over = 0;
+ eval "-$op \$gv";
+ is( $over, $exp, "string overload $is called for -$op on GLOB" );
+
+ # IO refs always get string overload called. This might be a bug.
+ $op eq "t" || $op eq "T" || $op eq "B"
+ and ($exp, $is) = (1, "is");
+
+ $over = 0;
+ eval "-$op \$io";
+ is( $over, $exp, "string overload $is called for -$op on IO");
+
+ $rv = eval "-$op \$both";
+ is( $rv, "-$op", "correct -$op on string/-X overload" );
+
+ $rv = eval "-$op \$neither";
+ is($@, "", "-$op succeeds with random overloading");
+ is( $rv, eval "-$op \$nstr", "correct -$op with random overloading" );
+
+ is( eval "-r -$op \$ft", "-r", "stacked overloaded -$op" );
+ is( eval "-$op -r \$ft", "-$op", "overloaded stacked -$op" );
+}
+
+# -l stack corruption: this bug occurred from 5.8 to 5.14
+{
+ push my @foo, "bar", -l baz;
+ is $foo[0], "bar", '-l bareword does not corrupt the stack';
+}
+
+# -l and fatal warnings
+stat "test.pl";
+eval { use warnings FATAL => io; -l cradd };
+isnt(stat _, 1,
+ 'fatal warnings do not prevent -l HANDLE from setting stat status');
+
+# File test ops should not call get-magic on the topmost SV on the stack if
+# it belongs to another op.
+{
+ my $w;
+ sub oon::TIESCALAR{bless[],'oon'}
+ sub oon::FETCH{$w++}
+ tie my $t, 'oon';
+ push my @a, $t, -t;
+ is $w, 1, 'file test does not call FETCH on stack item not its own';
+}
+
+# -T and -B
+
+my $Perl = which_perl();
+
+SKIP: {
+ skip "no -T on filehandles", 8 unless eval { -T STDERR; 1 };
+
+ # Test that -T HANDLE sets the last stat type
+ -l "perl.c"; # last stat type is now lstat
+ -T STDERR; # should set it to stat, since -T does a stat
+ eval { -l _ }; # should die, because the last stat type is not lstat
+ like $@, qr/^The stat preceding -l _ wasn't an lstat at /,
+ '-T HANDLE sets the stat type';
+
+ # statgv should be cleared when freed
+ fresh_perl_is
+ 'open my $fh, "test.pl"; -r $fh; undef $fh; open my $fh2, '
+ . "q\0$Perl\0; print -B _",
+ '',
+ { switches => ['-l'] },
+ 'PL_statgv should not point to freed-and-reused SV';
+
+ # or coerced into a non-glob
+ fresh_perl_is
+ 'open Fh, "test.pl"; -r($h{i} = *Fh); $h{i} = 3; undef %h;'
+ . 'open my $fh2, ' . "q\0" . which_perl() . "\0; print -B _",
+ '',
+ { switches => ['-l'] },
+ 'PL_statgv should not point to coerced-freed-and-reused GV';
+
+ # -T _ should work after stat $ioref
+ open my $fh, 'test.pl';
+ stat $Perl; # a binary file
+ stat *$fh{IO};
+ is(-T _, 1, '-T _ works after stat $ioref');
+
+ # and after -r $ioref
+ -r *$fh{IO};
+ is(-T _, 1, '-T _ works after -r $ioref');
+
+ # -T _ on closed filehandle should still reset stat info
+ stat $fh;
+ close $fh;
+ -T _;
+ isnt(stat _, 1, '-T _ on closed filehandle resets stat info');
+
+ lstat "test.pl";
+ -T $fh; # closed
+ eval { lstat _ };
+ like $@, qr/^The stat preceding lstat\(\) wasn't an lstat at /,
+ '-T on closed handle resets last stat type';
+
+ # Fatal warnings should not affect the setting of errno.
+ $! = 7;
+ -T cradd;
+ my $errno = $!;
+ $! = 7;
+ eval { use warnings FATAL => unopened; -T cradd };
+ my $errno2 = $!;
+ is $errno2, $errno,
+ 'fatal warnings do not affect errno after -T BADHADNLE';
+}
+
+is runperl(prog => '-T _', switches => ['-w'], stderr => 1), "",
+ 'no uninit warnings from -T with no preceding stat';
+
+SKIP: {
+ my $rand_file_name = 'filetest-' . rand =~ y/.//dr;
+ if (-e $rand_file_name) { skip "File $rand_file_name exists", 1 }
+ stat 'test.pl';
+ -T $rand_file_name;
+ isnt(stat _, 1, '-T "nonexistent" resets stat success status');
+}
+
+# Unsuccessful filetests on filehandles should leave stat buffers in the
+# same state whether fatal warnings are on or off.
+{
+ stat "test.pl";
+ # This GV has no IO
+ -r *phlon;
+ my $failed_stat1 = stat _;
+
+ stat "test.pl";
+ eval { use warnings FATAL => unopened; -r *phlon };
+ my $failed_stat2 = stat _;
+
+ is $failed_stat2, $failed_stat1,
+ 'failed -r($gv_without_io) with and w/out fatal warnings';