Chip noticed that the intended optionality of the 'IV' was

[p5sagit/p5-mst-13.2.git] / ext / ODBM_File / odbm.t

diff --git a/ext/ODBM_File/odbm.t b/ext/ODBM_File/odbm.t
index a43e70b..c4df3d8 100755 (executable)
--- a/ext/ODBM_File/odbm.t
+++ b/ext/ODBM_File/odbm.t
@@ -28,7 +28,7 @@ require ODBM_File;
 #If Fcntl is not available, try 0x202 or 0x102 for O_RDWR|O_CREAT
 use Fcntl;
 
-print "1..66\n";
+print "1..78\n";
 
 unlink <Op.dbmx*>;
 
@@ -425,6 +425,92 @@ EOM
     unlink <Op.dbmx*>;
 }
 
+{
+    # When iterating over a tied hash using "each", the key passed to FETCH
+    # will be recycled and passed to NEXTKEY. If a Source Filter modifies the
+    # key in FETCH via a filter_fetch_key method we need to check that the
+    # modified key doesn't get passed to NEXTKEY.
+    # Also Test "keys" & "values" while we are at it.
+
+    use warnings ;
+    use strict ;
+    use ODBM_File ;
+
+    unlink <Op.dbmx*>;
+    my $bad_key = 0 ;
+    my %h = () ;
+    ok(67, my $db = tie(%h, 'ODBM_File','Op.dbmx', O_RDWR|O_CREAT, 0640)) ;
+    $db->filter_fetch_key (sub { $_ =~ s/^Beta_/Alpha_/ if defined $_}) ;
+    $db->filter_store_key (sub { $bad_key = 1 if /^Beta_/ ; $_ =~ s/^Alpha_/Beta_/}) ;
+
+    $h{'Alpha_ABC'} = 2 ;
+    $h{'Alpha_DEF'} = 5 ;
+
+    ok(68, $h{'Alpha_ABC'} == 2);
+    ok(69, $h{'Alpha_DEF'} == 5);
+
+    my ($k, $v) = ("","");
+    while (($k, $v) = each %h) {}
+    ok(70, $bad_key == 0);
+
+    $bad_key = 0 ;
+    foreach $k (keys %h) {}
+    ok(71, $bad_key == 0);
+
+    $bad_key = 0 ;
+    foreach $v (values %h) {}
+    ok(72, $bad_key == 0);
+
+    undef $db ;
+    untie %h ;
+    unlink <Op.dbmx*>;
+}
+
+
+{
+   # Check that DBM Filter can cope with read-only $_
+
+   use warnings ;
+   use strict ;
+   my %h ;
+   unlink <Op.dbmx*>;
+
+   ok(73, my $db = tie(%h, 'ODBM_File','Op.dbmx', O_RDWR|O_CREAT, 0640)) ;
+
+   $db->filter_fetch_key   (sub { }) ;
+   $db->filter_store_key   (sub { }) ;
+   $db->filter_fetch_value (sub { }) ;
+   $db->filter_store_value (sub { }) ;
+
+   $_ = "original" ;
+
+   $h{"fred"} = "joe" ;
+   ok(74, $h{"fred"} eq "joe");
+
+   eval { grep { $h{$_} } (1, 2, 3) };
+   ok (75, ! $@);
+
+
+   # delete the filters
+   $db->filter_fetch_key   (undef);
+   $db->filter_store_key   (undef);
+   $db->filter_fetch_value (undef);
+   $db->filter_store_value (undef);
+
+   $h{"fred"} = "joe" ;
+
+   ok(76, $h{"fred"} eq "joe");
+
+   ok(77, $db->FIRSTKEY() eq "fred") ;
+   
+   eval { grep { $h{$_} } (1, 2, 3) };
+   ok (78, ! $@);
+
+   undef $db ;
+   untie %h;
+   unlink <Op.dbmx*>;
+}
+exit ;
 if ($^O eq 'hpux') {
     print <<EOM;
 #