Patch for Perlbug #4253

[p5sagit/p5-mst-13.2.git] / t / op / range.t

diff --git a/t/op/range.t b/t/op/range.t
index 746da46..310f480 100755 (executable)
--- a/t/op/range.t
+++ b/t/op/range.t
@@ -1,8 +1,13 @@
 #!./perl
 
-# $RCSfile: range.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:14 $
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}   
 
-print "1..8\n";
+use Config;
+
+print "1..37\n";
 
 print join(':',1..5) eq '1:2:3:4:5' ? "ok 1\n" : "not ok 1\n";
 
@@ -34,3 +39,104 @@ print $x eq 'abcdefghijklmnopqrstuvwxyz' ? "ok 7\n" : "not ok 7 $x\n";
 
 @x = 'A'..'ZZ';
 print @x == 27 * 26 ? "ok 8\n" : "not ok 8\n";
+
+@x = '09' .. '08';  # should produce '09', '10',... '99' (strange but true)
+print "not " unless join(",", @x) eq
+                    join(",", map {sprintf "%02d",$_} 9..99);
+print "ok 9\n";
+
+# same test with foreach (which is a separate implementation)
+@y = ();
+foreach ('09'..'08') {
+    push(@y, $_);
+}
+print "not " unless join(",", @y) eq join(",", @x);
+print "ok 10\n";
+
+# check bounds
+if ($Config{ivsize} == 8) {
+  @a = eval "0x7ffffffffffffffe..0x7fffffffffffffff";
+  $a = "9223372036854775806 9223372036854775807";
+  @b = eval "-0x7fffffffffffffff..-0x7ffffffffffffffe";
+  $b = "-9223372036854775807 -9223372036854775806";
+}
+else {
+  @a = eval "0x7ffffffe..0x7fffffff";
+  $a = "2147483646 2147483647";
+  @b = eval "-0x7fffffff..-0x7ffffffe";
+  $b = "-2147483647 -2147483646";
+}
+
+print "not " unless "@a" eq $a;
+print "ok 11\n";
+
+print "not " unless "@b" eq $b;
+print "ok 12\n";
+
+# check magic
+{
+    my $bad = 0;
+    local $SIG{'__WARN__'} = sub { $bad = 1 };
+    my $x = 'a-e';
+    $x =~ s/(\w)-(\w)/join ':', $1 .. $2/e;
+    $bad = 1 unless $x eq 'a:b:c:d:e';
+    print $bad ? "not ok 13\n" : "ok 13\n";
+}
+
+# Should use magical autoinc only when both are strings
+print "not " unless 0 == (() = "0"..-1);
+print "ok 14\n";
+
+for my $x ("0"..-1) {
+    print "not ";
+}
+print "ok 15\n";
+
+# [#18165] Should allow "-4".."0", broken by #4730. (AMS 20021031)
+print join(":","-4".."0")      eq "-4:-3:-2:-1:0" ? "ok 16\n" : "not ok 16\n";
+print join(":","-4".."-0")     eq "-4:-3:-2:-1:0" ? "ok 17\n" : "not ok 17\n";
+print join(":","-4\n".."0\n")  eq "-4:-3:-2:-1:0" ? "ok 18\n" : "not ok 18\n";
+print join(":","-4\n".."-0\n") eq "-4:-3:-2:-1:0" ? "ok 19\n" : "not ok 19\n";
+
+# undef should be treated as 0 for numerical range
+print join(":",undef..2) eq '0:1:2' ? "ok 20\n" : "not ok 20\n";
+print join(":",-2..undef) eq '-2:-1:0' ? "ok 21\n" : "not ok 21\n";
+print join(":",undef..'2') eq '0:1:2' ? "ok 22\n" : "not ok 22\n";
+print join(":",'-2'..undef) eq '-2:-1:0' ? "ok 23\n" : "not ok 23\n";
+
+# undef should be treated as "" for magical range
+print join(":", map "[$_]", "".."B") eq '[]' ? "ok 24\n" : "not ok 24\n";
+print join(":", map "[$_]", undef.."B") eq '[]' ? "ok 25\n" : "not ok 25\n";
+print join(":", map "[$_]", "B".."") eq '' ? "ok 26\n" : "not ok 26\n";
+print join(":", map "[$_]", "B"..undef) eq '' ? "ok 27\n" : "not ok 27\n";
+
+# undef..undef used to segfault
+print join(":", map "[$_]", undef..undef) eq '[]' ? "ok 28\n" : "not ok 28\n";
+
+# also test undef in foreach loops
+@foo=(); push @foo, $_ for undef..2;
+print join(":", @foo) eq '0:1:2' ? "ok 29\n" : "not ok 29\n";
+
+@foo=(); push @foo, $_ for -2..undef;
+print join(":", @foo) eq '-2:-1:0' ? "ok 30\n" : "not ok 30\n";
+
+@foo=(); push @foo, $_ for undef..'2';
+print join(":", @foo) eq '0:1:2' ? "ok 31\n" : "not ok 31\n";
+
+@foo=(); push @foo, $_ for '-2'..undef;
+print join(":", @foo) eq '-2:-1:0' ? "ok 32\n" : "not ok 32\n";
+
+@foo=(); push @foo, $_ for undef.."B";
+print join(":", map "[$_]", @foo) eq '[]' ? "ok 33\n" : "not ok 33\n";
+
+@foo=(); push @foo, $_ for "".."B";
+print join(":", map "[$_]", @foo) eq '[]' ? "ok 34\n" : "not ok 34\n";
+
+@foo=(); push @foo, $_ for "B"..undef;
+print join(":", map "[$_]", @foo) eq '' ? "ok 35\n" : "not ok 35\n";
+
+@foo=(); push @foo, $_ for "B".."";
+print join(":", map "[$_]", @foo) eq '' ? "ok 36\n" : "not ok 36\n";
+
+@foo=(); push @foo, $_ for undef..undef;
+print join(":", map "[$_]", @foo) eq '[]' ? "ok 37\n" : "not ok 37\n";