I have a module with some code a bit like this: 
sub {
....
my $string = get_string();

local *STDIN;
open(STDIN, '<', \$string) or die "could not open $string";
binmode STDIN;

....
}

[download]
I cannot find a way in a test script of making the open call fail. I have tried Test::MockObject and subs and liberal use of "BEGIN". The method appears to be loaded from IO::File.

In reply to Making open fail by SilasTheMonk

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