# grep() and map() tests
#
-print "1..3\n";
+BEGIN {
+ chdir 't' if -d 't';
+ @INC = qw(. ../lib);
+ require "./test.pl";
+}
+
+plan( tests => 67 );
+
+{
+ my @lol = ([qw(a b c)], [], [qw(1 2 3)]);
+ my @mapped = map {scalar @$_} @lol;
+ cmp_ok("@mapped", 'eq', "3 0 3", 'map scalar list of list');
-$test = 1;
+ my @grepped = grep {scalar @$_} @lol;
+ cmp_ok("@grepped", 'eq', "$lol[0] $lol[2]", 'grep scalar list of list');
+ $test++;
-sub ok {
- my ($got,$expect) = @_;
- print "# expected [$expect], got [$got]\nnot " if $got ne $expect;
- print "ok $test\n";
+ @grepped = grep { $_ } @mapped;
+ cmp_ok( "@grepped", 'eq', "3 3", 'grep basic');
}
{
- my @lol = ([qw(a b c)], [], [qw(1 2 3)]);
- my @mapped = map {scalar @$_} @lol;
- ok "@mapped", "3 0 3";
- $test++;
+ my @res;
+
+ @res = map({$_} ("geronimo"));
+ cmp_ok( scalar(@res), '==', 1, 'basic map nr');
+ cmp_ok( $res[0], 'eq', 'geronimo', 'basic map is');
+
+ @res = map
+ ({$_} ("yoyodyne"));
+ cmp_ok( scalar(@res), '==', 1, 'linefeed map nr');
+ cmp_ok( $res[0], 'eq', 'yoyodyne', 'linefeed map is');
+
+ @res = (map(
+ {a =>$_},
+ ("chobb")))[0]->{a};
+ cmp_ok( scalar(@res), '==', 1, 'deref map nr');
+ cmp_ok( $res[0], 'eq', 'chobb', 'deref map is');
+
+ @res = map {$_} ("geronimo");
+ cmp_ok( scalar(@res), '==', 1, 'no paren basic map nr');
+ cmp_ok( $res[0], 'eq', 'geronimo', 'no paren basic map is');
+
+ @res = map
+ {$_} ("yoyodyne");
+ cmp_ok( scalar(@res), '==', 1, 'no paren linefeed map nr');
+ cmp_ok( $res[0], 'eq', 'yoyodyne', 'no paren linefeed map is');
+
+ @res = (map
+ {a =>$_},
+ ("chobb"))[0]->{a};
+ cmp_ok( scalar(@res), '==', 1, 'no paren deref map nr');
+ cmp_ok( $res[0], 'eq', 'chobb', 'no paren deref map is');
+
+ my $x = "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\n";
+
+ @res = map($_&$x,("sferics\n"));
+ cmp_ok( scalar(@res), '==', 1, 'binand map nr 1');
+ cmp_ok( $res[0], 'eq', "sferics\n", 'binand map is 1');
+
+ @res = map
+ ($_ & $x, ("sferics\n"));
+ cmp_ok( scalar(@res), '==', 1, 'binand map nr 2');
+ cmp_ok( $res[0], 'eq', "sferics\n", 'binand map is 2');
+
+ @res = map { $_ & $x } ("sferics\n");
+ cmp_ok( scalar(@res), '==', 1, 'binand map nr 3');
+ cmp_ok( $res[0], 'eq', "sferics\n", 'binand map is 3');
+
+ @res = map
+ { $_&$x } ("sferics\n");
+ cmp_ok( scalar(@res), '==', 1, 'binand map nr 4');
+ cmp_ok( $res[0], 'eq', "sferics\n", 'binand map is 4');
+
+ @res = grep({$_} ("geronimo"));
+ cmp_ok( scalar(@res), '==', 1, 'basic grep nr');
+ cmp_ok( $res[0], 'eq', 'geronimo', 'basic grep is');
- my @grepped = grep {scalar @$_} @lol;
- ok "@grepped", "$lol[0] $lol[2]";
- $test++;
+ @res = grep
+ ({$_} ("yoyodyne"));
+ cmp_ok( scalar(@res), '==', 1, 'linefeed grep nr');
+ cmp_ok( $res[0], 'eq', 'yoyodyne', 'linefeed grep is');
- @grepped = grep { $_ } @mapped;
- ok "@grepped", "3 3";
- $test++;
+ @res = grep
+ ({a=>$_}->{a},
+ ("chobb"));
+ cmp_ok( scalar(@res), '==', 1, 'deref grep nr');
+ cmp_ok( $res[0], 'eq', 'chobb', 'deref grep is');
+
+ @res = grep {$_} ("geronimo");
+ cmp_ok( scalar(@res), '==', 1, 'no paren basic grep nr');
+ cmp_ok( $res[0], 'eq', 'geronimo', 'no paren basic grep is');
+
+ @res = grep
+ {$_} ("yoyodyne");
+ cmp_ok( scalar(@res), '==', 1, 'no paren linefeed grep nr');
+ cmp_ok( $res[0], 'eq', 'yoyodyne', 'no paren linefeed grep is');
+
+ @res = grep {a=>$_}->{a}, ("chobb");
+ cmp_ok( scalar(@res), '==', 1, 'no paren deref grep nr');
+ cmp_ok( $res[0], 'eq', 'chobb', 'no paren deref grep is');
+
+ @res = grep
+ {a=>$_}->{a}, ("chobb");
+ cmp_ok( scalar(@res), '==', 1, 'no paren deref linefeed nr');
+ cmp_ok( $res[0], 'eq', 'chobb', 'no paren deref linefeed is');
+
+ @res = grep($_&"X", ("bodine"));
+ cmp_ok( scalar(@res), '==', 1, 'binand X grep nr');
+ cmp_ok( $res[0], 'eq', 'bodine', 'binand X grep is');
+
+ @res = grep
+ ($_&"X", ("bodine"));
+ cmp_ok( scalar(@res), '==', 1, 'binand X linefeed grep nr');
+ cmp_ok( $res[0], 'eq', 'bodine', 'binand X linefeed grep is');
+
+ @res = grep {$_&"X"} ("bodine");
+ cmp_ok( scalar(@res), '==', 1, 'no paren binand X grep nr');
+ cmp_ok( $res[0], 'eq', 'bodine', 'no paren binand X grep is');
+
+ @res = grep
+ {$_&"X"} ("bodine");
+ cmp_ok( scalar(@res), '==', 1, 'no paren binand X linefeed grep nr');
+ cmp_ok( $res[0], 'eq', 'bodine', 'no paren binand X linefeed grep is');
}
+{
+ # Tests for "for" in "map" and "grep"
+ # Used to dump core, bug [perl #17771]
+
+ my @x;
+ my $y = '';
+ @x = map { $y .= $_ for 1..2; 1 } 3..4;
+ cmp_ok( "@x,$y",'eq',"1 1,1212", '[perl #17771] for in map 1');
+
+ $y = '';
+ @x = map { $y .= $_ for 1..2; $y .= $_ } 3..4;
+ cmp_ok( "@x,$y",'eq',"123 123124,123124", '[perl #17771] for in map 2');
+
+ $y = '';
+ @x = map { for (1..2) { $y .= $_ } $y .= $_ } 3..4;
+ cmp_ok( "@x,$y",'eq',"123 123124,123124", '[perl #17771] for in map 3');
+
+ $y = '';
+ @x = grep { $y .= $_ for 1..2; 1 } 3..4;
+ cmp_ok( "@x,$y",'eq',"3 4,1212", '[perl #17771] for in grep 1');
+
+ $y = '';
+ @x = grep { for (1..2) { $y .= $_ } 1 } 3..4;
+ cmp_ok( "@x,$y",'eq',"3 4,1212", '[perl #17771] for in grep 2');
+
+ # Add also a sample test from [perl #18153]. (The same bug).
+ $a = 1; map {if ($a){}} (2);
+ pass( '[perl #18153] (not dead yet)' ); # no core dump is all we need
+}
+
+{
+ sub add_an_x(@){
+ map {"${_}x"} @_;
+ };
+ cmp_ok( join("-",add_an_x(1,2,3,4)), 'eq', "1x-2x-3x-4x", 'add-an-x');
+}
+
+{
+ my $gimme;
+
+ sub gimme {
+ my $want = wantarray();
+ if (defined $want) {
+ $gimme = $want ? 'list' : 'scalar';
+ } else {
+ $gimme = 'void';
+ }
+ }
+
+ my @list = 0..9;
+
+ undef $gimme; gimme for @list; cmp_ok($gimme, 'eq', 'void', 'gimme a V!');
+ undef $gimme; grep { gimme } @list; cmp_ok($gimme, 'eq', 'scalar', 'gimme an S!');
+ undef $gimme; map { gimme } @list; cmp_ok($gimme, 'eq', 'list', 'gimme an L!');
+}
+
+{
+ # test scalar context return
+ my @list = (7, 14, 21);
+
+ my $x = map {$_ *= 2} @list;
+ cmp_ok("@list", 'eq', "14 28 42", 'map scalar return');
+ cmp_ok($x, '==', 3, 'map scalar count');
+
+ @list = (9, 16, 25, 36);
+ $x = grep {$_ % 2} @list;
+ cmp_ok($x, '==', 2, 'grep scalar count');
+
+ my @res = grep {$_ % 2} @list;
+ cmp_ok("@res", 'eq', "9 25", 'grep extract');
+}
+
+{
+ # This shouldn't loop indefinitely.
+ my @empty = map { while (1) {} } ();
+ cmp_ok("@empty", 'eq', '', 'staying alive');
+}
+
+{
+ my $x;
+ eval 'grep $x (1,2,3);';
+ like($@, qr/Missing comma after first argument to grep function/,
+ "proper error on variable as block. [perl #37314]");
+}
+
+# [perl #78194] grep/map aliasing op return values
+grep is(\$_, \$_, '[perl #78194] \$_ == \$_ inside grep ..., "$x"'),
+ "${\''}", "${\''}";
+map is(\$_, \$_, '[perl #78194] \$_ == \$_ inside map ..., "$x"'),
+ "${\''}", "${\''}";
+
+# [perl #92254] freeing $_ in gremap block
+{
+ my $y;
+ grep { undef *_ } $y;
+ map { undef *_ } $y;
+}
+pass 'no double frees with grep/map { undef *_ }';
+
+# Don't mortalise PADTMPs.
+# This failed while I was messing with leave stuff (but not in a simple
+# test, so add one). The '1;' ensures the block is wrapped in ENTER/LEAVE;
+# the stringify returns a PADTMP. DAPM.
+
+{
+ my @a = map { 1; "$_" } 1,2;
+ is("@a", "1 2", "PADTMP");
+}
https://perl5.git.perl.org / perl5.git / blobdiff