#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = qw(../lib lib);
}
BEGIN { require "./test.pl"; }
# This test depends on t/lib/Devel/switchd*.pm.
plan(tests => 10);
my $r;
my $filename = tempfile();
SKIP: {
open my $f, ">$filename"
or skip( "Can't write temp file $filename: $!" );
print $f <<'__SWDTEST__';
package Bar;
sub bar { $_[0] * $_[0] }
package Foo;
sub foo {
my $s;
$s += Bar::bar($_) for 1..$_[0];
}
package main;
Foo::foo(3);
__SWDTEST__
close $f;
$| = 1; # Unbufferize.
$r = runperl(
switches => [ '-Ilib', '-f', '-d:switchd' ],
progfile => $filename,
args => ['3'],
);
like($r, qr/^sub<Devel::switchd::import>;import<Devel::switchd>;DB<main,$::tempfile_regexp,9>;sub<Foo::foo>;DB<Foo,$::tempfile_regexp,5>;DB<Foo,$::tempfile_regexp,6>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;$/);
$r = runperl(
switches => [ '-Ilib', '-f', '-d:switchd=a,42' ],
progfile => $filename,
args => ['4'],
);
like($r, qr/^sub<Devel::switchd::import>;import<Devel::switchd a 42>;DB<main,$::tempfile_regexp,9>;sub<Foo::foo>;DB<Foo,$::tempfile_regexp,5>;DB<Foo,$::tempfile_regexp,6>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;$/);
$r = runperl(
switches => [ '-Ilib', '-f', '-d:-switchd=a,42' ],
progfile => $filename,
args => ['4'],
);
like($r, qr/^sub<Devel::switchd::unimport>;unimport<Devel::switchd a 42>;DB<main,$::tempfile_regexp,9>;sub<Foo::foo>;DB<Foo,$::tempfile_regexp,5>;DB<Foo,$::tempfile_regexp,6>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;$/);
}
# [perl #71806]
cmp_ok(
runperl( # less is useful for something :-)
switches => [ '"-Mless ++INC->{q-Devel/_.pm-}"' ],
progs => [
'#!perl -d:_',
'sub DB::DB{} print scalar @{q/_</.__FILE__}',
],
),
'>',
0,
'The debugger can see the lines of the main program under #!perl -d',
);
# [perl #48332]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [
'sub foo { print qq _1\n_ }',
'*old_foo = \&foo;',
'*foo = sub { print qq _2\n_ };',
'old_foo(); foo();',
],
),
qr "1\r?\n2\r?\n",
'Subroutine redefinition works in the debugger [perl #48332]',
);
# [rt.cpan.org #69862]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [
'sub DB::sub { goto &$DB::sub }',
'sub foo { print qq _1\n_ }',
'sub bar { print qq _2\n_ }',
'delete $::{foo}; eval { foo() };',
'my $bar = *bar; undef *bar; eval { &$bar };',
],
),
qr "1\r?\n2\r?\n",
'Subroutines no longer found under their names can be called',
);
# [rt.cpan.org #69862]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [
'sub DB::sub { goto &$DB::sub }',
'sub foo { goto &bar::baz; }',
'sub bar::baz { print qq _ok\n_ }',
'delete $::{bar::::};',
'foo();',
],
),
qr "ok\r?\n",
'No crash when calling orphaned subroutine via goto &',
);
# test when DB::DB is seen but not defined [perl #114990]
like(
runperl(
switches => [ '-Ilib', '-d:nodb' ],
prog => [ '1' ],
stderr => 1,
),
qr/^No DB::DB routine defined/,
"No crash when *DB::DB exists but not &DB::DB",
);
like(
runperl(
switches => [ '-Ilib' ],
prog => 'sub DB::DB; BEGIN { $^P = 0x22; } for(0..9){ warn }',
stderr => 1,
),
qr/^No DB::DB routine defined/,
"No crash when &DB::DB exists but isn't actually defined",
);
# [perl #115742] Recursive DB::DB clobbering its own pad
like(
runperl(
switches => [ '-Ilib' ],
progs => [ split "\n", <<'='
BEGIN {
$^P = 0x22;
}
package DB;
sub DB {
my $x = 42;
return if $__++;
$^D |= 1 << 30; # allow recursive calls
main::foo();
print $x//q-u-, qq-\n-;
}
package main;
chop;
sub foo { chop; }
=
],
stderr => 1,
),
qr/42/,
"Recursive DB::DB does not clobber its own pad",
);