Add a lot of tests for combinations of values, offsets and lengths

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

diff --git a/t/op/eval.t b/t/op/eval.t
index 6487b9e..6aef5b8 100755 (executable)
--- a/t/op/eval.t
+++ b/t/op/eval.t
@@ -1,6 +1,11 @@
 #!./perl
 
-print "1..77\n";
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+print "1..91\n";
 
 eval 'print "ok 1\n";';
 
@@ -340,6 +345,96 @@ eval q{
 };
 fred5();
 { my $yyy = 88; my $zzz = 99; fred5(); }
-eval q{ my $yyy = 888; my $zzz = 999; fred5(); }
+eval q{ my $yyy = 888; my $zzz = 999; fred5(); };
+
+# [perl #9728] used to dump core
+{
+   $eval = eval 'sub { eval "sub { %S }" }';
+   $eval->({});
+   print "ok $test\n";
+   $test++;
+}
+
+# evals that appear in the DB package should see the lexical scope of the
+# thing outside DB that called them (usually the debugged code), rather
+# than the usual surrounding scope
+
+$test=79;
+our $x = 1;
+{
+    my $x=2;
+    sub db1    { $x; eval '$x' }
+    sub DB::db2        { $x; eval '$x' }
+    package DB;
+    sub db3    { eval '$x' }
+    sub DB::db4        { eval '$x' }
+    sub db5    { my $x=4; eval '$x' }
+    package main;
+    sub db6    { my $x=4; eval '$x' }
+}
+{
+    my $x = 3;
+    print db1()     == 2 ? 'ok' : 'not ok', " $test\n"; $test++;
+    print DB::db2() == 2 ? 'ok' : 'not ok', " $test\n"; $test++;
+    print DB::db3() == 3 ? 'ok' : 'not ok', " $test\n"; $test++;
+    print DB::db4() == 3 ? 'ok' : 'not ok', " $test\n"; $test++;
+    print DB::db5() == 3 ? 'ok' : 'not ok', " $test\n"; $test++;
+    print db6()     == 4 ? 'ok' : 'not ok', " $test\n"; $test++;
+}
+require './test.pl';
+$NO_ENDING = 1;
+# [perl #19022] used to end up with shared hash warnings
+# The program should generate no output, so anything we see is on stderr
+my $got = runperl (prog => '$h{a}=1; foreach my $k (keys %h) {eval qq{\$k}}',
+                  stderr => 1);
+
+if ($got eq '') {
+  print "ok $test\n";
+} else {
+  print "not ok $test\n";
+  _diag ("# Got '$got'\n");
+}
+$test++;
 
+# And a buggy way of fixing #19022 made this fail - $k became undef after the
+# eval for a build with copy on write
+{
+  my %h;
+  $h{a}=1;
+  foreach my $k (keys %h) {
+    if (defined $k and $k eq 'a') {
+      print "ok $test\n";
+    } else {
+      print "not $test # got ", _q ($k), "\n";
+    }
+    $test++;
+
+    eval "\$k";
+
+    if (defined $k and $k eq 'a') {
+      print "ok $test\n";
+    } else {
+      print "not $test # got ", _q ($k), "\n";
+    }
+    $test++;
+  }
+}
 
+sub Foo {} print Foo(eval {});
+print "ok ",$test++," - #20798 (used to dump core)\n";
+
+# check for context in string eval
+{
+  my(@r,$r,$c);
+  sub context { defined(wantarray) ? (wantarray ? ($c='A') : ($c='S')) : ($c='V') }
+
+  my $code = q{ context() };
+  @r = qw( a b );
+  $r = 'ab';
+  @r = eval $code;
+  print "@r$c" eq 'AA' ? "ok " : "# '@r$c' ne 'AA'\nnot ok ", $test++, "\n";
+  $r = eval $code;
+  print "$r$c" eq 'SS' ? "ok " : "# '$r$c' ne 'SS'\nnot ok ", $test++, "\n";
+  eval $code;
+  print   $c   eq 'V'  ? "ok " : "# '$c' ne 'V'\nnot ok ", $test++, "\n";
+}