The Perl and Raku Conference 2025: Greenville, South Carolina - June 27-29 Learn more

#!/usr/bin/perl -w
BEGIN {
unshift @INC, 't/lib';
}
use strict;
use Test::More tests => 11;
use TieOut;
use TieIn;
eval q{
prompt();
};
like( $@, qr/^Not enough arguments for ExtUtils::MakeMaker::prompt/,
'no args' );
eval {
prompt(undef);
};
like( $@, qr/^prompt function called without an argument/,
'undef message' );
my $stdout = tie *STDOUT, 'TieOut' or die;
$ENV{PERL_MM_USE_DEFAULT} = 1;
is( prompt("Foo?"), '', 'no default' );
like( $stdout->read, qr/^Foo\?\s*\n$/, ' question' );
is( prompt("Foo?", undef), '', 'undef default' );
like( $stdout->read, qr/^Foo\?\s*\n$/, ' question' );
is( prompt("Foo?", 'Bar!'), 'Bar!', 'default' );
like( $stdout->read, qr/^Foo\? \[Bar!\]\s+Bar!\n$/, ' question' );
$ENV{PERL_MM_USE_DEFAULT} = 0;
close STDIN;
my $stdin = tie *STDIN, 'TieIn' or die;
$stdin->write("From STDIN");
ok( !-t STDIN, 'STDIN not a tty' );
is( prompt("Foo?", 'Bar!'), 'From STDIN', 'from STDIN' );
like( $stdout->read, qr/^Foo\? \[Bar!\]\s*$/, ' question' );