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|
#!perl -w
use strict;
use Test::More tests => 72;
BEGIN { use_ok( 'Devel::Caller', qw( caller_cv caller_args caller_vars called_with called_as_method ) ) }
package CV;
use Test::More;
my $cv;
$cv = sub {
is( ::caller_cv(0), $cv, "caller_cv" );
};
$cv->();
sub foo { bar(my $bar) }
sub bar { baz(my $baz) }
sub baz { check(my $check) }
sub check {
my $i = 0;
for (qw( check baz bar foo )) {
is( ::caller_cv($i), \&{"CV::$_"}, "caller_cv $i is $_" );
is_deeply( [::called_with($i,1)], [ "\$$_" ], "called_with $i is \$$_" );
++$i;
}
}
foo(my $foo);
package main;
my (@foo, %foo);
sub called_lex {
my @called = called_with(0);
is( scalar @called, 3, "right count");
is( $called[0], \$foo, "with lexical \$foo" );
is( $called[1], \@foo, "with lexical \@foo" );
is( $called[2], \%foo, "with lexical \%foo" );
}
called_lex($foo, @foo, %foo);
sub called_lex_names {
my @called = called_with(0, 1);
is( @called, 3, "right count");
is( $called[0], '$foo', "with lexical name \$foo" );
is( $called[1], '@foo', "with lexical name \@foo" );
is( $called[2], '%foo', "with lexical name \%foo" );
}
called_lex_names($foo, @foo, %foo);
# called_with muddied with assignments
my @expect;
my $what;
sub called_assign {
is_deeply([ called_with(0, 1) ], \@expect,
"$what called_assign(".join(', ', map { $_ || "undef"} @expect).")");
}
$what = 'constant';
{
my $foo;
@expect = undef; called_assign('foo');
@expect = (undef, '$foo'); called_assign('foo', $foo);
@expect = (undef, '$foo'); called_assign(['foo'], $foo);
}
$what = 'lexical create';
{ # test scalars
@expect = qw( $bar ); called_assign(my $bar = q(some value));
@expect = qw( $baz ); called_assign(my $baz = $foo);
@expect = qw( $quux $bar ); called_assign(my $quux = $foo, $bar);
}
{ # same again for arrays
@expect = qw( @bar ); called_assign(my @bar = qw(some values));
@expect = qw( @baz ); called_assign(my @baz = @foo);
@expect = qw( @quux @bar ); called_assign(my @quux = @foo, @bar);
@expect = qw( @flange ); called_assign(my @flange = (@foo, @bar));
}
{ # and again for hashes
@expect = qw( %bar ); called_assign(my %bar = qw(some values));
@expect = qw( %baz ); called_assign(my %baz = %foo);
@expect = qw( %quux %bar ); called_assign(my %quux = %foo, %bar);
@expect = qw( %flange ); called_assign(my %flange = (%foo, %bar));
}
$what = 'lexical prexist';
{ # test scalars
my ($bar, $baz, $quux);
@expect = qw( $bar ); called_assign($bar = q(some value));
@expect = qw( $baz ); called_assign($baz = $foo);
@expect = qw( $quux $bar ); called_assign($quux = $foo, $bar);
}
{ # same again for arrays
my (@bar, @baz, @quux, @flange);
@expect = qw( @bar ); called_assign(@bar = qw(some values));
@expect = qw( @baz ); called_assign(@baz = @foo);
@expect = qw( @quux @bar ); called_assign(@quux = @foo, @bar);
@expect = qw( @flange ); called_assign(@flange = (@foo, @bar));
}
{ # and again for hashes
my (%bar, %baz, %quux, %flange);
@expect = qw( %bar ); called_assign(%bar = qw(some values));
@expect = qw( %baz ); called_assign(%baz = %foo);
@expect = qw( %quux %bar ); called_assign(%quux = %foo, %bar);
@expect = qw( %flange ); called_assign(%flange = (%foo, %bar));
}
use vars qw( $quux @quux %quux );
sub called {
my @called = caller_vars(0);
is( scalar @called, 3, "right count");
is( $called[0], \$quux, "with \$quux" );
is( $called[1], \@quux, "with \@quux" );
is( $called[2], \%quux, "with \%quux" );
}
called($quux, @quux, %quux);
sub called_names {
my @called = called_with(0, 1);
is( scalar @called, 3, "right count");
is( $called[0], '$main::quux', "with name 0" );
is( $called[1], '@main::quux', "with name 1" );
is( $called[2], '%main::quux', "with name 2" );
}
called_names($quux, @quux, %quux);
sub called_globs {
my @called = called_with(0, 1);
is( scalar @called, 3, "right count");
is( $called[0], '*main::STDIN', "with name 0" );
is( $called[1], '*main::STDOUT', "with name 1" );
is( $called[2], '*main::STDERR', "with name 2" );
}
called_globs(*STDIN, *STDOUT, *STDERR);
package T;
$what = 'package';
*called_assign = \&::called_assign;
{ # test scalars
use vars qw( $bar $baz $quux );
@expect = qw( $T::bar ); called_assign($bar = q(a value));
@expect = qw( $T::baz ); called_assign($baz = $foo);
@expect = qw( $T::quux $T::bar ); called_assign($quux = $foo, $bar);
}
{ # same again for arrays
use vars qw( @bar @baz @quux @flange );
{
local $::TODO = "splitops under 5.00503"
if $] < 5.006;
@expect = qw( @T::bar ); called_assign(@bar = qw(some values));
}
@expect = qw( @T::baz ); called_assign(@baz = @foo);
@expect = qw( @T::quux @T::bar ); called_assign(@quux = @foo, @bar);
@expect = qw( @T::flange ); called_assign(@flange = (@foo, @bar));
}
{ # and again for hashes
use vars qw( %bar %baz %quux %flange );
@expect = qw( %T::bar ); called_assign(%bar = qw(1 2));
@expect = qw( %T::baz ); called_assign(%baz = %foo);
@expect = qw( %T::quux %T::bar ); called_assign(%quux = %foo, %bar);
@expect = qw( %T::flange ); called_assign(%flange = (%foo, %bar));
}
package main;
# were we called as a method or a sub
my $called;
sub maybe_method {
is( called_as_method(), $called, "called_as_method" );
}
maybe_method();
$called = 1;
main->maybe_method();
my $name = 'maybe_method';
main->$name();
sub args {
is_deeply( \@_, [ caller_args(0) ] );
}
args('foo', 'bar');
# rt.cpan.org 2878
my $coy = rand 6;
print "# cunning coy tests\n";
real( $coy, $coy );
print "# concat\n";
print "# print ", real( $coy, $coy ), "\n";
sub real {
is_deeply( [ called_with(0,1) ], [qw( $coy $coy )], 'real( $coy, $coy )' );
}
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