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|
#!./perl
#
# grep() and map() tests
#
print "1..38\n";
$test = 1;
sub ok {
my ($got,$expect) = @_;
print "# expected [$expect], got [$got]\nnot " if $got ne $expect;
print "ok $test\n";
}
{
my @lol = ([qw(a b c)], [], [qw(1 2 3)]);
my @mapped = map {scalar @$_} @lol;
ok "@mapped", "3 0 3";
$test++;
my @grepped = grep {scalar @$_} @lol;
ok "@grepped", "$lol[0] $lol[2]";
$test++;
@grepped = grep { $_ } @mapped;
ok "@grepped", "3 3";
$test++;
}
{
print map({$_} ("ok $test\n"));
$test++;
print map
({$_} ("ok $test\n"));
$test++;
print((map({a => $_}, ("ok $test\n")))[0]->{a});
$test++;
print((map
({a=>$_},
("ok $test\n")))[0]->{a});
$test++;
print map { $_ } ("ok $test\n");
$test++;
print map
{ $_ } ("ok $test\n");
$test++;
print((map {a => $_}, ("ok $test\n"))[0]->{a});
$test++;
print((map
{a=>$_},
("ok $test\n"))[0]->{a});
$test++;
my $x = "ok \xFF\xFF\n";
print map($_&$x,("ok $test\n"));
$test++;
print map
($_ & $x, ("ok $test\n"));
$test++;
print map { $_ & $x } ("ok $test\n");
$test++;
print map
{ $_&$x } ("ok $test\n");
$test++;
print grep({$_} ("ok $test\n"));
$test++;
print grep
({$_} ("ok $test\n"));
$test++;
print grep({a => $_}->{a}, ("ok $test\n"));
$test++;
print grep
({a => $_}->{a},
("ok $test\n"));
$test++;
print grep { $_ } ("ok $test\n");
$test++;
print grep
{ $_ } ("ok $test\n");
$test++;
print grep {a => $_}->{a}, ("ok $test\n");
$test++;
print grep
{a => $_}->{a},
("ok $test\n");
$test++;
print grep($_&"X",("ok $test\n"));
$test++;
print grep
($_&"X", ("ok $test\n"));
$test++;
print grep { $_ & "X" } ("ok $test\n");
$test++;
print grep
{ $_ & "X" } ("ok $test\n");
$test++;
}
# Tests for "for" in "map" and "grep"
# Used to dump core, bug [perl #17771]
{
my @x;
my $y = '';
@x = map { $y .= $_ for 1..2; 1 } 3..4;
print "# @x,$y\n";
print "@x,$y" eq "1 1,1212" ? "ok $test\n" : "not ok $test\n";
$test++;
$y = '';
@x = map { $y .= $_ for 1..2; $y .= $_ } 3..4;
print "# @x,$y\n";
print "@x,$y" eq "123 123124,123124" ? "ok $test\n" : "not ok $test\n";
$test++;
$y = '';
@x = map { for (1..2) { $y .= $_ } $y .= $_ } 3..4;
print "# @x,$y\n";
print "@x,$y" eq "123 123124,123124" ? "ok $test\n" : "not ok $test\n";
$test++;
$y = '';
@x = grep { $y .= $_ for 1..2; 1 } 3..4;
print "# @x,$y\n";
print "@x,$y" eq "3 4,1212" ? "ok $test\n" : "not ok $test\n";
$test++;
$y = '';
@x = grep { for (1..2) { $y .= $_ } 1 } 3..4;
print "# @x,$y\n";
print "@x,$y" eq "3 4,1212" ? "ok $test\n" : "not ok $test\n";
$test++;
# Add also a sample test from [perl #18153]. (The same bug).
$a = 1; map {if ($a){}} (2);
print "ok $test\n"; # no core dump is all we need
$test++;
}
{
sub add_an_x(@){
map {"${_}x"} @_;
};
ok join("-",add_an_x(1,2,3,4)), "1x-2x-3x-4x";
$test++;
}
{
my $gimme;
sub gimme {
my $want = wantarray();
if (defined $want) {
$gimme = $want ? 'list' : 'scalar';
} else {
$gimme = 'void';
}
}
my @list = 0..9;
undef $gimme; gimme for @list; ok($gimme, 'void'); $test++;
undef $gimme; grep { gimme } @list; ok($gimme, 'scalar'); $test++;
undef $gimme; map { gimme } @list; ok($gimme, 'list'); $test++;
}
{
# This shouldn't loop indefinitively.
my @empty = map { while (1) {} } ();
ok("@empty", '');
}
|
