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#!/usr/bin/perl
use strict;
use warnings;
use Devel::Backtrace;
use Test::More tests => 8;
Foo::foo1();
{
package Foo;
sub foo1 {
foo2();
}
sub foo2 {
Bar::bar1();
}
}
{
package Bar;
sub bar1 {
bar2();
}
sub bar2 {
Baz::baz1();
}
}
{
package Baz;
sub baz1 {
baz2();
}
sub baz2 {
baz3();
}
sub baz3 {
my $backtrace = Devel::Backtrace->new;
warn "pure backtrace: $backtrace" if $ENV{DEBUG};
# Tell Devel::Backtrace that we are not interested in what Baz method
# calls which Baz method.
$backtrace->skipme;
warn "backtrace: $backtrace" if $ENV{DEBUG};
use Test::More;
is(scalar($backtrace->points), 5, 'skipme count')
or warn "skipme count: $backtrace";
is($backtrace->point(0)->subroutine, 'Baz::baz1', 'skipme')
or warn "skipme: $backtrace";
my $backtrace2 = Devel::Backtrace->new;
# Tell Devel::Backtrace that we are not even interested where the first
# Baz method was called.
$backtrace2->skipmysubs;
is (scalar($backtrace2->points), 4, 'skipmysubs count')
or warn "skipmysubs count: $backtrace";
is ($backtrace2->point(0)->subroutine, 'Bar::bar2', 'skipmysubs')
or warn "skipmysubs: $backtrace";
warn "backtrace2: $backtrace2" if $ENV{DEBUG};
my $backtrace3 = Devel::Backtrace->new(1);
$backtrace3->skipmysubs('Baz');
warn "backtrace3: $backtrace3" if $ENV{DEBUG};
is ($backtrace3->point(1)->to_string(-format => '%I'), 1, '%I')
or warn "%I: $backtrace3";
is ($backtrace3->point(1)->_skip, 4, '_skip')
or warn "_skip: $backtrace3";
is ($backtrace3->point(1)->to_string(-format => '%i'), 5, '%i')
or warn "%i: $backtrace3";
# Same as above, but use -start instead of plain argument to new.
my $backtrace4 = Devel::Backtrace->new(-start => 1);
$backtrace4->skipmysubs('Baz');
is ($backtrace4->point(1)->_skip, 4, '_skip / -start')
or warn "_skip / -start: $backtrace3 --\n$backtrace4";
}
}
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