1 files changed, 35 insertions, 0 deletions
diff --git a/t/op/cmp.t b/t/op/cmp.t
new file mode 100755
index 0000000000..4a7e68d448
--- /dev/null
+++ b/t/op/cmp.t
@@ -0,0 +1,35 @@
+#!./perl
+
+@FOO = ('s', 'N/A', 'a', 'NaN', -1, undef, 0, 1);
+
+$expect = ($#FOO+2) * ($#FOO+1);
+print "1..$expect\n";
+
+my $ok = 0;
+for my $i (0..$#FOO) {
+    for my $j ($i..$#FOO) {
+	$ok++;
+	my $cmp = $FOO[$i] <=> $FOO[$j];
+	if (!defined($cmp) ||
+	    $cmp == -1 && $FOO[$i] < $FOO[$j] ||
+	    $cmp == 0  && $FOO[$i] == $FOO[$j] ||
+	    $cmp == 1  && $FOO[$i] > $FOO[$j])
+	{
+	    print "ok $ok\n";
+	}
+	else {
+	    print "not ok $ok ($FOO[$i] <=> $FOO[$j]) gives: '$cmp'\n";
+	}
+	$ok++;
+	$cmp = $FOO[$i] cmp $FOO[$j];
+	if ($cmp == -1 && $FOO[$i] lt $FOO[$j] ||
+	    $cmp == 0  && $FOO[$i] eq $FOO[$j] ||
+	    $cmp == 1  && $FOO[$i] gt $FOO[$j])
+	{
+	    print "ok $ok\n";
+	}
+	else {
+	    print "not ok $ok ($FOO[$i] cmp $FOO[$j]) gives '$cmp'\n";
+	}
+    }
+}