method.t revision 7c478bd95313f5f23a4c958a745db2134aa03244
#!./perl
#
# test method calls and autoloading.
#
BEGIN {
chdir 't' if -d 't';
@INC = qw(. ../lib);
require "test.pl";
}
print "1..78\n";
@A::ISA = 'B';
@B::ISA = 'C';
sub C::d {"C::d"}
sub D::d {"D::d"}
# First, some basic checks of method-calling syntax:
$obj = bless [], "Pack";
sub Pack::method { shift; join(",", "method", @_) }
$mname = "method";
is(Pack->method("a","b","c"), "method,a,b,c");
is(Pack->$mname("a","b","c"), "method,a,b,c");
is(method Pack ("a","b","c"), "method,a,b,c");
is((method Pack "a","b","c"), "method,a,b,c");
is(Pack->method(), "method");
is(Pack->$mname(), "method");
is(method Pack (), "method");
is(Pack->method, "method");
is(Pack->$mname, "method");
is(method Pack, "method");
is($obj->method("a","b","c"), "method,a,b,c");
is($obj->$mname("a","b","c"), "method,a,b,c");
is((method $obj ("a","b","c")), "method,a,b,c");
is((method $obj "a","b","c"), "method,a,b,c");
is($obj->method(0), "method,0");
is($obj->method(1), "method,1");
is($obj->method(), "method");
is($obj->$mname(), "method");
is((method $obj ()), "method");
is($obj->method, "method");
is($obj->$mname, "method");
is(method $obj, "method");
is( A->d, "C::d"); # Update hash table;
*B::d = \&D::d; # Import now.
is(A->d, "D::d"); # Update hash table;
{
local @A::ISA = qw(C); # Update hash table with split() assignment
is(A->d, "C::d");
$#A::ISA = -1;
is(eval { A->d } || "fail", "fail");
}
is(A->d, "D::d");
{
local *B::d;
eval 'sub B::d {"B::d1"}'; # Import now.
is(A->d, "B::d1"); # Update hash table;
undef &B::d;
is((eval { A->d }, ($@ =~ /Undefined subroutine/)), 1);
}
is(A->d, "D::d"); # Back to previous state
eval 'sub B::d {"B::d2"}'; # Import now.
is(A->d, "B::d2"); # Update hash table;
# What follows is hardly guarantied to work, since the names in scripts
# are already linked to "pruned" globs. Say, `undef &B::d' if it were
# after `delete $B::{d}; sub B::d {}' would reach an old subroutine.
undef &B::d;
delete $B::{d};
is(A->d, "C::d"); # Update hash table;
eval 'sub B::d {"B::d3"}'; # Import now.
is(A->d, "B::d3"); # Update hash table;
delete $B::{d};
*dummy::dummy = sub {}; # Mark as updated
is(A->d, "C::d");
eval 'sub B::d {"B::d4"}'; # Import now.
is(A->d, "B::d4"); # Update hash table;
delete $B::{d}; # Should work without any help too
is(A->d, "C::d");
{
local *C::d;
is(eval { A->d } || "nope", "nope");
}
is(A->d, "C::d");
*A::x = *A::d; # See if cache incorrectly follows synonyms
A->d;
is(eval { A->x } || "nope", "nope");
eval <<'EOF';
sub C::e;
BEGIN { *B::e = \&C::e } # Shouldn't prevent AUTOLOAD in original pkg
sub Y::f;
$counter = 0;
@X::ISA = 'Y';
@Y::ISA = 'B';
sub B::AUTOLOAD {
my $c = ++$counter;
my $method = $B::AUTOLOAD;
my $msg = "B: In $method, $c";
eval "sub $method { \$msg }";
goto &$method;
}
sub C::AUTOLOAD {
my $c = ++$counter;
my $method = $C::AUTOLOAD;
my $msg = "C: In $method, $c";
eval "sub $method { \$msg }";
goto &$method;
}
EOF
is(A->e(), "C: In C::e, 1"); # We get a correct autoload
is(A->e(), "C: In C::e, 1"); # Which sticks
is(A->ee(), "B: In A::ee, 2"); # We get a generic autoload, method in top
is(A->ee(), "B: In A::ee, 2"); # Which sticks
is(Y->f(), "B: In Y::f, 3"); # We vivify a correct method
is(Y->f(), "B: In Y::f, 3"); # Which sticks
# This test is not intended to be reasonable. It is here just to let you
# know that you broke some old construction. Feel free to rewrite the test
# if your patch breaks it.
*B::AUTOLOAD = sub {
my $c = ++$counter;
my $method = $AUTOLOAD;
*$AUTOLOAD = sub { "new B: In $method, $c" };
goto &$AUTOLOAD;
};
is(A->eee(), "new B: In A::eee, 4"); # We get a correct $autoload
is(A->eee(), "new B: In A::eee, 4"); # Which sticks
# this test added due to bug discovery
is(defined(@{"unknown_package::ISA"}) ? "defined" : "undefined", "undefined");
# test that failed subroutine calls don't affect method calls
{
package A1;
sub foo { "foo" }
package A2;
@ISA = 'A1';
package main;
is(A2->foo(), "foo");
is(do { eval 'A2::foo()'; $@ ? 1 : 0}, 1);
is(A2->foo(), "foo");
}
## This test was totally misguided. It passed before only because the
## code to determine if a package was loaded used to look for the hash
## %Foo::Bar instead of the package Foo::Bar:: -- and Config.pm just
## happens to export %Config.
# {
# is(do { use Config; eval 'Config->foo()';
# $@ =~ /^\QCan't locate object method "foo" via package "Config" at/ ? 1 : $@}, 1);
# is(do { use Config; eval '$d = bless {}, "Config"; $d->foo()';
# $@ =~ /^\QCan't locate object method "foo" via package "Config" at/ ? 1 : $@}, 1);
# }
# test error messages if method loading fails
is(do { eval '$e = bless {}, "E::A"; E::A->foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::A" at/ ? 1 : $@}, 1);
is(do { eval '$e = bless {}, "E::B"; $e->foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::B" at/ ? 1 : $@}, 1);
is(do { eval 'E::C->foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::C" (perhaps / ? 1 : $@}, 1);
is(do { eval 'UNIVERSAL->E::D::foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::D" (perhaps / ? 1 : $@}, 1);
is(do { eval '$e = bless {}, "UNIVERSAL"; $e->E::E::foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::E" (perhaps / ? 1 : $@}, 1);
$e = bless {}, "E::F"; # force package to exist
is(do { eval 'UNIVERSAL->E::F::foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::F" at/ ? 1 : $@}, 1);
is(do { eval '$e = bless {}, "UNIVERSAL"; $e->E::F::foo()';
$@ =~ /^\QCan't locate object method "foo" via package "E::F" at/ ? 1 : $@}, 1);
# TODO: we need some tests for the SUPER:: pseudoclass
# failed method call or UNIVERSAL::can() should not autovivify packages
is( $::{"Foo::"} || "none", "none"); # sanity check 1
is( $::{"Foo::"} || "none", "none"); # sanity check 2
is( UNIVERSAL::can("Foo", "boogie") ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none"); # still missing?
is( Foo->UNIVERSAL::can("boogie") ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none"); # still missing?
is( Foo->can("boogie") ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none"); # still missing?
is( eval 'Foo->boogie(); 1' ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none"); # still missing?
is(do { eval 'Foo->boogie()';
$@ =~ /^\QCan't locate object method "boogie" via package "Foo" (perhaps / ? 1 : $@}, 1);
eval 'sub Foo::boogie { "yes, sir!" }';
is( $::{"Foo::"} ? "ok" : "none", "ok"); # should exist now
is( Foo->boogie(), "yes, sir!");
# TODO: universal.t should test NoSuchPackage->isa()/can()
# This is actually testing parsing of indirect objects and undefined subs
# print foo("bar") where foo does not exist is not an indirect object.
# print foo "bar" where foo does not exist is an indirect object.
eval 'sub AUTOLOAD { "ok ", shift, "\n"; }';
ok(1);
# Bug ID 20010902.002
is(
eval q[
$x = 'x';
sub Foo::x : lvalue { $x }
Foo->$x = 'ok';
] || $@, 'ok'
);
# An autoloaded, inherited DESTROY may be invoked differently than normal
# methods, and has been known to give rise to spurious warnings
# eg <200203121600.QAA11064@gizmo.fdgroup.co.uk>
{
use warnings;
my $w = '';
local $SIG{__WARN__} = sub { $w = $_[0] };
sub AutoDest::Base::AUTOLOAD {}
@AutoDest::ISA = qw(AutoDest::Base);
{ my $x = bless {}, 'AutoDest'; }
$w =~ s/\n//g;
is($w, '');
}
# [ID 20020305.025] PACKAGE::SUPER doesn't work anymore
package main;
our @X;
package Amajor;
sub test {
push @main::X, 'Amajor', @_;
}
package Bminor;
use base qw(Amajor);
package main;
sub Bminor::test {
$_[0]->Bminor::SUPER::test('x', 'y');
push @main::X, 'Bminor', @_;
}
Bminor->test('y', 'z');
is("@X", "Amajor Bminor x y Bminor Bminor y z");
package main;
for my $meth (['Bar', 'Foo::Bar'],
['SUPER::Bar', 'main::SUPER::Bar'],
['Xyz::SUPER::Bar', 'Xyz::SUPER::Bar'])
{
fresh_perl_is(<<EOT,
package UNIVERSAL; sub AUTOLOAD { my \$c = shift; print "\$c \$AUTOLOAD\\n" }
sub DESTROY {} # IO object destructor called in MacOS, because of Mac::err
package Xyz;
package main; Foo->$meth->[0]();
EOT
"Foo $meth->[1]",
{ switches => [ '-w' ] },
"check if UNIVERSAL::AUTOLOAD works",
);
}