arena-rework : consolidated patch

[p5sagit/p5-mst-13.2.git] / t / japh / abigail.t

diff --git a/t/japh/abigail.t b/t/japh/abigail.t
index b4c4c8d..9981502 100644 (file)
--- a/t/japh/abigail.t
+++ b/t/japh/abigail.t
@@ -3,6 +3,25 @@
 #
 # Tests derived from Japhs.
 #
+# These test use obscure features of Perl, or surprising combinations
+# of features. The tests were added because in the past, they have
+# exposed several bugs in Perl.
+#
+# Some of these tests may actually (mis)use bugs or use undefined behaviour.
+# These tests are still useful - behavioural changes or bugfixes will be
+# noted, and a remark can be put in the documentation. (Don't forget to
+# disable the test!)
+#
+# Getting everything to run well on the myriad of platforms Perl runs on
+# is unfortunately not a trivial task.
+#
+# WARNING: these tests are obfuscated.  Do not get frustrated.
+# Ask Abigail <abigail@foad.org>, or use the Deparse or Concise
+# modules (the former parses Perl to Perl, the latter shows the
+# op syntax tree) like this:
+# ./perl -Ilib -MO=Deparse foo.pl
+# ./perl -Ilib -MO=Concise foo.pl
+#
 
 BEGIN {
     if (ord("A") == 193) {
@@ -15,6 +34,8 @@ BEGIN {
     undef &skip;
 }
 
+skip_all "Unhappy on MacOS" if $^O eq 'MacOS';
+
 #
 # ./test.pl does real evilness by jumping to a label.
 # This function copies the skip from ./test, omitting the goto.
@@ -121,7 +142,7 @@ plan tests => 130;
 {
     my $datafile = "datatmp000";
     1 while -f ++ $datafile;
-    END {unlink_all $datafile}
+    END {unlink_all $datafile if $datafile}
 
     open  MY_DATA, "> $datafile" or die "Failed to open $datafile: $!";
     print MY_DATA  << "    --";
@@ -201,24 +222,24 @@ plan tests => 130;
 {
     my $progfile = "progtmp000";
     1 while -f ++ $progfile;
-    END {unlink_all $progfile}
+    END {unlink_all $progfile if $progfile}
 
     my @programs = (<< '    --', << '    --');
-#!./perl               --    # No trailing newline after the last line!    
+#!./perl
 BEGIN{$|=$SIG{__WARN__}=sub{$_=$_[0];y-_- -;print/(.)"$/;seek _,-open(_ 
 ,"+<$0"),2;truncate _,tell _;close _;exec$0}}//rekcaH_lreP_rehtona_tsuJ
     --
-#!./perl               --   # Remove trailing newline!
+#!./perl
 BEGIN{$SIG{__WARN__}=sub{$_=pop;y-_- -;print/".*(.)"/;  
 truncate$0,-1+-s$0;exec$0;}}//rekcaH_lreP_rehtona_tsuJ
     --
     chomp @programs;
 
-    if ($^O eq 'VMS') {
+    if ($^O eq 'VMS' or $^O eq 'MSWin32') {
         # VMS needs extensions for files to be executable,
         # but the Japhs above rely on $0 being exactly the
         # filename of the program.
-        skip "VMS", 2 * @programs;
+        skip $^O, 2 * @programs;
         last
     }
 
@@ -397,7 +418,7 @@ EXPECT:   6
 SWITCHES
 -Mstrict='}); print "Just another Perl Hacker"; ({'
 -l
-SKIP_OS: VMS
+SKIP: No longer works in 5.8.2 and beyond.
 MSWin32
 NetWare
 
@@ -456,27 +477,32 @@ SKIP: Abuses a fixed bug.
 
 #######  Prototype fun 2
 print prototype sub "Just another Perl Hacker" {};
+SKIP: Abuses a fixed bug.
 
 #######  Prototype fun 3
 sub _ "Just another Perl Hacker"; print prototype \&_
+SKIP: Abuses a fixed bug.
 
 #######  Split 1
                split // => '"';
 ${"@_"} = "/"; split // => eval join "+" => 1 .. 7;
 *{"@_"} = sub {foreach (sort keys %_)  {print "$_ $_{$_} "}};
 %{"@_"} = %_ = (Just => another => Perl => Hacker); &{%{%_}};
+SKIP: Hashes are now randomized.
 EXPECT: $JaPH_s
 
 #######  Split 2
 $" = "/"; split // => eval join "+" => 1 .. 7;
 *{"@_"} = sub {foreach (sort keys %_) {print "$_ $_{$_} "}};
 %_ = (Just => another => Perl => Hacker); &{%_};
+SKIP: Hashes are now randomized.
 EXPECT: $JaPH_s
 
 #######  Split 3
 $" = "/"; split $, => eval join "+" => 1 .. 7;
 *{"@_"} = sub  {foreach (sort keys %_) {print "$_ $_{$_} "}};
 %{"@_"} = %_ = (Just => another => Perl => Hacker); &{%{%_}};
+SKIP: Hashes are now randomized.
 EXPECT: $JaPH_s
 
 #######  Here documents 1