chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
+ plan( tests => 27 );
}
-plan( tests => 9 );
-
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)", "caller(0) - subroutine name in an eval {}" );
+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)", "caller(0) - subroutine name in an eval ''" );
+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__", "caller(0) - anonymous subroutine name" );
+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)", "caller(0) - unknown subroutine name" );
+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)", "caller(1) - subroutine name in an eval {}" );
+is( $c[3], "(eval)", "subroutine name in an eval {}" );
+ok( !$c[4], "hasargs false in an eval {}" );
eval q{ f() };
-is( $c[3], "(eval)", "caller(1) - subroutine name in an eval ''" );
+is( $c[3], "(eval)", "subroutine name in an eval ''" );
+ok( !$c[4], "hasargs false in an eval ''" );
sub { f() } -> ();
-is( $c[3], "main::__ANON__", "caller(1) - anonymous subroutine name" );
+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)", "caller(1) - unknown subroutine name" );
+is( $c[3], "(unknown)", "unknown subroutine name" );
+ok( $c[4], "hasargs true with unknown sub" );
+
+# See if caller() returns the correct warning mask
+
+sub testwarn {
+ my $w = shift;
+ is( (caller(0))[9], $w, "warnings");
+}
+
+# NB : extend the warning mask values below when new warnings are added
+{
+ no warnings;
+ BEGIN { is( ${^WARNING_BITS}, "\0" x 12, 'warning bits' ) }
+ testwarn("\0" x 12);
+ use warnings;
+ BEGIN { is( ${^WARNING_BITS}, "U" x 12, 'warning bits' ) }
+ BEGIN { testwarn("U" x 12); }
+ # run-time :
+ # the warning mask has been extended by warnings::register
+ testwarn("UUUUUUUUUUUU\001");
+ use warnings::register;
+ BEGIN { is( ${^WARNING_BITS}, "UUUUUUUUUUUU\001", 'warning bits' ) }
+ testwarn("UUUUUUUUUUUU\001");
+}