I want to test open and print failures. This crude trick overrides open with a failing one: 

BEGIN {
    *CORE::GLOBAL::open = sub (*;$$) { return undef };
}
open(my $fh, '>', 'f.tmp') or die "error: open";
print $fh "hello\n" or die "error: print";

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However, this attempt does not override print with a failing one: 
BEGIN {
    *CORE::GLOBAL::print = sub (*;@) { return undef };
}
open(my $fh, '>', 'f.tmp') or die "error: open";
print $fh "hello\n" or die "error: print";

[download]
I suspect I just need to get the right prototype for print. How do I override the print function to make it fail?

In reply to Testing failures: How to override print to make it fail? by eyepopslikeamosquito

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