## name standard filehandles are OK
## failures 0
## cut

open(STDIN, '<', '/dev/null') or die;
open(STDOUT, '>', '/dev/null') or die;
open(STDERR, '>', '/dev/null') or die;

#-----------------------------------------------------------------------------

## name basic failures
## failures 5
## cut

open FH, '>', $some_file;
open FH, '>', $some_file or die;
open(FH, '>', $some_file);
open(FH, '>', $some_file) or die;
open(STDERROR, '>', '/dev/null') or die;

#-----------------------------------------------------------------------------

## name basic passes
## failures 0
## cut
open $fh, '>', $some_file;
open $fh, '>', $some_file or die;
open($fh, '>', $some_file);
open($fh, '>', $some_file) or die;

open my $fh, '>', $some_file;
open my $fh, '>', $some_file or die;
open(my $fh, '>', $some_file);
open(my $fh, '>', $some_file) or die;

$foo{open}; # not a function call
{open}; # zero args, for Devel::Cover