107 lines
2.0 KiB
Perl
Executable File
107 lines
2.0 KiB
Perl
Executable File
#!./perl
|
|
#
|
|
# check UNIVERSAL
|
|
#
|
|
|
|
BEGIN {
|
|
chdir 't' if -d 't';
|
|
unshift @INC, '../lib' if -d '../lib';
|
|
}
|
|
|
|
print "1..73\n";
|
|
|
|
$a = {};
|
|
bless $a, "Bob";
|
|
print "not " unless $a->isa("Bob");
|
|
print "ok 1\n";
|
|
|
|
package Human;
|
|
sub eat {}
|
|
|
|
package Female;
|
|
@ISA=qw(Human);
|
|
|
|
package Alice;
|
|
@ISA=qw(Bob Female);
|
|
sub drink {}
|
|
sub new { bless {} }
|
|
|
|
$Alice::VERSION = 2.718;
|
|
|
|
package main;
|
|
|
|
my $i = 2;
|
|
sub test { print "not " unless shift; print "ok $i\n"; $i++; }
|
|
|
|
$a = new Alice;
|
|
|
|
test $a->isa("Alice");
|
|
|
|
test $a->isa("Bob");
|
|
|
|
test $a->isa("Female");
|
|
|
|
test $a->isa("Human");
|
|
|
|
test ! $a->isa("Male");
|
|
|
|
test $a->can("drink");
|
|
|
|
test $a->can("eat");
|
|
|
|
test ! $a->can("sleep");
|
|
|
|
my $b = 'abc';
|
|
my @refs = qw(SCALAR SCALAR LVALUE GLOB ARRAY HASH CODE);
|
|
my @vals = ( \$b, \3.14, \substr($b,1,1), \*b, [], {}, sub {} );
|
|
for ($p=0; $p < @refs; $p++) {
|
|
for ($q=0; $q < @vals; $q++) {
|
|
test UNIVERSAL::isa($vals[$p], $refs[$q]) eq ($p==$q or $p+$q==1);
|
|
};
|
|
};
|
|
|
|
test ! UNIVERSAL::can(23, "can");
|
|
|
|
test $a->can("VERSION");
|
|
|
|
test $a->can("can");
|
|
test ! $a->can("export_tags"); # a method in Exporter
|
|
|
|
test (eval { $a->VERSION }) == 2.718;
|
|
|
|
test ! (eval { $a->VERSION(2.719) }) &&
|
|
$@ =~ /^Alice version 2.71(?:9|8999\d+) required--this is only version 2.718 at /;
|
|
|
|
test (eval { $a->VERSION(2.718) }) && ! $@;
|
|
|
|
my $subs = join ' ', sort grep { defined &{"UNIVERSAL::$_"} } keys %UNIVERSAL::;
|
|
if ('a' lt 'A') {
|
|
test $subs eq "can isa VERSION";
|
|
} else {
|
|
test $subs eq "VERSION can isa";
|
|
}
|
|
|
|
test $a->isa("UNIVERSAL");
|
|
|
|
# now use UNIVERSAL.pm and see what changes
|
|
eval "use UNIVERSAL";
|
|
|
|
test $a->isa("UNIVERSAL");
|
|
|
|
my $sub2 = join ' ', sort grep { defined &{"UNIVERSAL::$_"} } keys %UNIVERSAL::;
|
|
# XXX import being here is really a bug
|
|
if ('a' lt 'A') {
|
|
test $sub2 eq "can import isa VERSION";
|
|
} else {
|
|
test $sub2 eq "VERSION can import isa";
|
|
}
|
|
|
|
eval 'sub UNIVERSAL::sleep {}';
|
|
test $a->can("sleep");
|
|
|
|
test ! UNIVERSAL::can($b, "can");
|
|
|
|
test ! $a->can("export_tags"); # a method in Exporter
|
|
|
|
test ! UNIVERSAL::isa("\xff\xff\xff\0", 'HASH');
|