source: vendor/perl/5.8.8/ext/threads/t/basic.t

#
# The reason this does not use a Test module is that
# they mess up test numbers between threads
#
# And even when that will be fixed, this is a basic
# test and should not rely on shared variables
#
# This will test the basic API, it will not use any coderefs
# as they are more advanced
#
#########################


BEGIN {
    chdir 't' if -d 't';
    push @INC, '../lib';
    require Config; import Config;
    unless ($Config{'useithreads'}) {
        print "1..0 # Skip: no useithreads\n";
        exit 0; 
    }
}

use ExtUtils::testlib;
use strict;
BEGIN { $| = 1; print "1..19\n" };
use threads;



print "ok 1\n";


#########################




sub ok {        
    my ($id, $ok, $name) = @_;

    # You have to do it this way or VMS will get confused.
    print $ok ? "ok $id - $name\n" : "not ok $id - $name\n";

    printf "# Failed test at line %d\n", (caller)[2] unless $ok;

    return $ok;
}



sub test1 {
        ok(2,'bar' eq $_[0],"Test that argument passing works");
}
threads->create('test1','bar')->join();

sub test2 {
        ok(3,'bar' eq $_[0]->[0]->{foo},"Test that passing arguments as references work");
}

threads->create('test2',[{foo => 'bar'}])->join();


#test execuion of normal sub
sub test3 { ok(4,shift() == 1,"Test a normal sub") }
threads->create('test3',1)->join();


#check Config
ok(5, 1 == $threads::threads,"Check that threads::threads is true");

#test trying to detach thread

sub test4 { ok(6,1,"Detach test") }

my $thread1 = threads->create('test4');

$thread1->detach();
threads->yield; # help out non-preemptive thread implementations
sleep 2;
ok(7,1,"Detach test");



sub test5 {
        threads->create('test6')->join();
        ok(9,1,"Nested thread test");
}

sub test6 {
        ok(8,1,"Nested thread test");
}

threads->create('test5')->join();

sub test7 {
        my $self = threads->self();
        ok(10, $self->tid == 7, "Wanted 7, got ".$self->tid);
        ok(11, threads->tid() == 7, "Wanted 7, got ".threads->tid());
}

threads->create('test7')->join;

sub test8 {
        my $self = threads->self();
        ok(12, $self->tid == 8, "Wanted 8, got ".$self->tid);
        ok(13, threads->tid() == 8, "Wanted 8, got ".threads->tid());
}

threads->create('test8')->join;


#check support for threads->self() in main thread
ok(14, 0 == threads->self->tid(),"Check so that tid for threads work for main thread");
ok(15, 0 == threads->tid(),"Check so that tid for threads work for main thread");

{
        no warnings;
    local *CLONE = sub { ok(16, threads->tid() == 9, "Tid should be correct in the clone")};
    threads->create(sub { ok(17, threads->tid() == 9, "And tid be 9 here too") })->join();
}

{ 

    sub Foo::DESTROY { 
        ok(19, threads->tid() == 10, "In destroy it should be correct too" )
        }
    my $foo;
    threads->create(sub { ok(18, threads->tid() == 10, "And tid be 10 here");
                          $foo = bless {}, 'Foo';                         
                          return undef;
                      })->join();

}
1;