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#!./perl
# Tests for caller()
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
}
plan( tests => 20 );
my @c;
print "# Tests with caller(0)\n";
@c = caller(0);
ok( (!@c), "caller(0) in main program" );
eval { @c = caller(0) };
is( $c[3], "(eval)", "subroutine name in an eval {}" );
ok( !$c[4], "hasargs false in an eval {}" );
eval q{ @c = (Caller(0))[3] };
is( $c[3], "(eval)", "subroutine name in an eval ''" );
ok( !$c[4], "hasargs false in an eval ''" );
sub { @c = caller(0) } -> ();
is( $c[3], "main::__ANON__", "anonymous subroutine name" );
ok( $c[4], "hasargs true with anon sub" );
# Bug 20020517.003, used to dump core
sub foo { @c = caller(0) }
my $fooref = delete $::{foo};
$fooref -> ();
is( $c[3], "(unknown)", "unknown subroutine name" );
ok( $c[4], "hasargs true with unknown sub" );
print "# Tests with caller(1)\n";
sub f { @c = caller(1) }
sub callf { f(); }
callf();
is( $c[3], "main::callf", "subroutine name" );
ok( $c[4], "hasargs true with callf()" );
&callf;
ok( !$c[4], "hasargs false with &callf" );
eval { f() };
is( $c[3], "(eval)", "subroutine name in an eval {}" );
ok( !$c[4], "hasargs false in an eval {}" );
eval q{ f() };
is( $c[3], "(eval)", "subroutine name in an eval ''" );
ok( !$c[4], "hasargs false in an eval ''" );
sub { f() } -> ();
is( $c[3], "main::__ANON__", "anonymous subroutine name" );
ok( $c[4], "hasargs true with anon sub" );
sub foo2 { f() }
my $fooref2 = delete $::{foo2};
$fooref2 -> ();
is( $c[3], "(unknown)", "unknown subroutine name" );
ok( $c[4], "hasargs true with unknown sub" );
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