[perl5.git] / t / io / defout.t

#!./perl
#
# tests for default output handle

# DAPM 30/4/10 this area seems to have been undertested. For now, the only
# tests are ensuring things don't crash when PL_defoutgv isn't a GV;
# it probably needs expanding at some point to cover other stuff.

BEGIN {
    chdir 't';
    @INC = '../lib';
    require './test.pl';
}

plan tests => 16;


my $stderr = *STDERR;
select($stderr);
$stderr = 1; # whoops, PL_defoutgv no longer a GV!

# note that in the tests below, the return values aren't as important
# as the fact that they don't crash

ok !print(""), 'print';
ok !select(), 'select';
$a = 'fooo';
format STDERR =
#@<<
$a;
.
ok ! write(), 'write';

is($^, "",     '$^');
is($~, "",     '$~');
is($=, undef,  '$=');
is($-, undef,  '$-');
is($%, undef,  '$%');
is($|, 0,      '$|');
$^ = 1; pass '$^ = 1';
$~ = 1; pass '$~ = 1';
$= = 1; pass '$= = 1';
$- = 1; pass '$- = 1';
$% = 1; pass '$% = 1';
$| = 1; pass '$| = 1';
ok !close(), 'close';
Commit	Line	Data
099be4f1 DM	1	#!./perl
	2	#
	3	# tests for default output handle
	4
	5	# DAPM 30/4/10 this area seems to have been undertested. For now, the only
	6	# tests are ensuring things don't crash when PL_defoutgv isn't a GV;
	7	# it probably needs expanding at some point to cover other stuff.
	8
	9	BEGIN {
	10	chdir 't';
	11	@INC = '../lib';
	12	require './test.pl';
	13	}
	14
	15	plan tests => 16;
	16
	17
	18	my $stderr = *STDERR;
	19	select($stderr);
	20	$stderr = 1; # whoops, PL_defoutgv no longer a GV!
	21
	22	# note that in the tests below, the return values aren't as important
	23	# as the fact that they don't crash
	24
	25	ok !print(""), 'print';
	26	ok !select(), 'select';
	27	$a = 'fooo';
	28	format STDERR =
	29	#@<<
	30	$a;
	31	.
	32	ok ! write(), 'write';
	33
	34	is($^, "", '$^');
	35	is($~, "", '$~');
	36	is($=, undef, '$=');
	37	is($-, undef, '$-');
	38	is($%, undef, '$%');
	39	is($\|, 0, '$\|');
	40	$^ = 1; pass '$^ = 1';
	41	$~ = 1; pass '$~ = 1';
	42	$= = 1; pass '$= = 1';
	43	$- = 1; pass '$- = 1';
	44	$% = 1; pass '$% = 1';
	45	$\| = 1; pass '$\| = 1';
	46	ok !close(), 'close';
	47