$| = 1;
}
-print "1..87\n";
+print "1..98\n";
$a = {};
bless $a, "Bob";
package main;
{ my $i = 2;
- sub test { print "not " unless shift; print "ok $i\n"; $i++; }
+ sub test {
+ print "not " unless $_[0];
+ print "ok ", $i++;
+ print " # at ", (caller)[1], ", line ", (caller)[2] unless $_[0];
+ print "\n";
+ }
}
$a = new Alice;
test $a->isa("Alice");
+test $a->isa("main::Alice"); # check that alternate class names work
+
+test(("main::Alice"->new)->isa("Alice"));
test $a->isa("Bob");
+test $a->isa("main::Bob");
test $a->isa("Female");
test ! $a->isa('Programmer');
+test $a->isa("HASH");
+
test $a->can("eat");
test ! $a->can("sleep");
test my $ref = $a->can("drink"); # returns a coderef
test (eval { $a->VERSION(2.718) }) && ! $@;
my $subs = join ' ', sort grep { defined &{"UNIVERSAL::$_"} } keys %UNIVERSAL::;
+## The test for import here is *not* because we want to ensure that UNIVERSAL
+## can always import; it is an historical accident that UNIVERSAL can import.
if ('a' lt 'A') {
- test $subs eq "can isa VERSION";
+ test $subs eq "can import isa VERSION";
} else {
- test $subs eq "VERSION can isa";
+ test $subs eq "VERSION can import isa";
}
test $a->isa("UNIVERSAL");
test ! $a->can("export_tags"); # a method in Exporter
test ! UNIVERSAL::isa("\xff\xff\xff\0", 'HASH');
+
+{
+ package Pickup;
+ use UNIVERSAL qw( isa can VERSION );
+
+ main::test isa "Pickup", UNIVERSAL;
+ main::test can( "Pickup", "can" ) == \&UNIVERSAL::can;
+ main::test VERSION "UNIVERSAL" ;
+}
+
+{
+ # test isa() and can() on magic variables
+ "Human" =~ /(.*)/;
+ test $1->isa("Human");
+ test $1->can("eat");
+ package HumanTie;
+ sub TIESCALAR { bless {} }
+ sub FETCH { "Human" }
+ tie my($x), "HumanTie";
+ ::test $x->isa("Human");
+ ::test $x->can("eat");
+}