Also test veq_pp() out of its argument bounds

diff --git a/t/10-veq-pp.t b/t/10-veq-pp.t
index 58d90b03e445db74b87b3d06001a6d5c4df743b7..75073895ebd5a8099e64796ab92598641a6906ef 100644 (file)
--- a/t/10-veq-pp.t
+++ b/t/10-veq-pp.t
@@ -33,28 +33,31 @@ sub rst {
 }
 
 sub pat {
- my (undef, $a, $b, $x) = @_;
+ my (undef, $a, $b, $x, $y) = @_;
  myfill $_[0], 0,       $a,             $x;
  myfill $_[0], $a,      $b,             1 - $x;
- myfill $_[0], $a + $b, $n - ($a + $b), $x;
+ myfill $_[0], $a + $b, $n - ($a + $b), $x     if $y;
 }
 
-my ($v1, $v2) = ('') x 2;
-
 my @s = ($p - $q) .. ($p + $q);
 for my $s1 (@s) {
  for my $s2 (@s) {
   for my $l (0 .. $n - 1) {
    next if $s1 + $l > $n or $s2 + $l > $n;
-   pat $v1, $s1, $l, 0;
-   pat $v2, $s2, $l, 0;
+   my $v1 = '';
+   my $v2 = '';
+   pat $v1, $s1, $l, 0, 0;
+   pat $v2, $s2, $l, 0, 1;
+   my $desc = "veq_pp $s1, $s2, $l";
    ok   Scalar::Vec::Util::veq_pp($v1 => $s1,     $v2 => $s2, $l),
-        "veq_pp $s1, $s2, $l";
+        "$desc [1<=>2]";
+   ok   Scalar::Vec::Util::veq_pp($v2 => $s2,     $v1 => $s1, $l),
+        "$desc [2<=>1]";
    if ($l > 0) {
     ok !Scalar::Vec::Util::veq_pp($v1 => $s1 - 1, $v2 => $s2, $l),
-        'not veq_pp ' . ($s1-1) . ", $s2, $l";
+        'not veq_pp ' . ($s1-1) . ", $s2, $l [1<=>2]";
     ok !Scalar::Vec::Util::veq_pp($v1 => $s1 + 1, $v2 => $s2, $l),
-        'not veq_pp ' . ($s1+1) . ", $s2, $l";
+        'not veq_pp ' . ($s1+1) . ", $s2, $l [1<=>2]";
    }
   }
  }