890 lines
20 KiB
Perl
Executable File
890 lines
20 KiB
Perl
Executable File
#!./perl -w
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BEGIN {
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@INC = '../lib';
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require Config; import Config;
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if ($Config{'extensions'} !~ /\bDB_File\b/) {
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print "1..0 # Skip: DB_File was not built\n";
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exit 0;
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}
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}
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use DB_File;
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use Fcntl;
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use strict ;
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use warnings;
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use vars qw($dbh $Dfile $bad_ones $FA) ;
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# full tied array support started in Perl 5.004_57
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# Double check to see if it is available.
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{
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sub try::TIEARRAY { bless [], "try" }
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sub try::FETCHSIZE { $FA = 1 }
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$FA = 0 ;
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my @a ;
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tie @a, 'try' ;
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my $a = @a ;
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}
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sub ok
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{
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my $no = shift ;
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my $result = shift ;
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print "not " unless $result ;
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print "ok $no\n" ;
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return $result ;
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}
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{
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package Redirect ;
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use Symbol ;
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sub new
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{
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my $class = shift ;
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my $filename = shift ;
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my $fh = gensym ;
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open ($fh, ">$filename") || die "Cannot open $filename: $!" ;
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my $real_stdout = select($fh) ;
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return bless [$fh, $real_stdout ] ;
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}
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sub DESTROY
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{
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my $self = shift ;
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close $self->[0] ;
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select($self->[1]) ;
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}
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}
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sub docat
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{
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my $file = shift;
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local $/ = undef;
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open(CAT,$file) || die "Cannot open $file:$!";
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my $result = <CAT>;
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close(CAT);
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return $result;
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}
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sub docat_del
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{
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my $file = shift;
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local $/ = undef;
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open(CAT,$file) || die "Cannot open $file: $!";
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my $result = <CAT>;
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close(CAT);
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unlink $file ;
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return $result;
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}
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sub bad_one
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{
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print STDERR <<EOM unless $bad_ones++ ;
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#
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# Some older versions of Berkeley DB version 1 will fail tests 51,
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# 53 and 55.
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#
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# You can safely ignore the errors if you're never going to use the
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# broken functionality (recno databases with a modified bval).
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# Otherwise you'll have to upgrade your DB library.
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#
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# If you want to use Berkeley DB version 1, then 1.85 and 1.86 are the
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# last versions that were released. Berkeley DB version 2 is continually
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# being updated -- Check out http://www.sleepycat.com/ for more details.
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#
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EOM
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}
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print "1..128\n";
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my $Dfile = "recno.tmp";
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unlink $Dfile ;
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umask(0);
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# Check the interface to RECNOINFO
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my $dbh = new DB_File::RECNOINFO ;
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ok(1, ! defined $dbh->{bval}) ;
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ok(2, ! defined $dbh->{cachesize}) ;
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ok(3, ! defined $dbh->{psize}) ;
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ok(4, ! defined $dbh->{flags}) ;
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ok(5, ! defined $dbh->{lorder}) ;
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ok(6, ! defined $dbh->{reclen}) ;
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ok(7, ! defined $dbh->{bfname}) ;
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$dbh->{bval} = 3000 ;
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ok(8, $dbh->{bval} == 3000 );
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$dbh->{cachesize} = 9000 ;
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ok(9, $dbh->{cachesize} == 9000 );
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$dbh->{psize} = 400 ;
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ok(10, $dbh->{psize} == 400 );
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$dbh->{flags} = 65 ;
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ok(11, $dbh->{flags} == 65 );
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$dbh->{lorder} = 123 ;
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ok(12, $dbh->{lorder} == 123 );
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$dbh->{reclen} = 1234 ;
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ok(13, $dbh->{reclen} == 1234 );
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$dbh->{bfname} = 1234 ;
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ok(14, $dbh->{bfname} == 1234 );
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# Check that an invalid entry is caught both for store & fetch
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eval '$dbh->{fred} = 1234' ;
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ok(15, $@ =~ /^DB_File::RECNOINFO::STORE - Unknown element 'fred' at/ );
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eval 'my $q = $dbh->{fred}' ;
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ok(16, $@ =~ /^DB_File::RECNOINFO::FETCH - Unknown element 'fred' at/ );
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# Now check the interface to RECNOINFO
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my $X ;
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my @h ;
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ok(17, $X = tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ;
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ok(18, ((stat($Dfile))[2] & 0777) == ($^O eq 'os2' ? 0666 : 0640)
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|| $^O eq 'MSWin32' || $^O eq 'amigaos') ;
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#my $l = @h ;
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my $l = $X->length ;
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ok(19, ($FA ? @h == 0 : !$l) );
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my @data = qw( a b c d ever f g h i j k longername m n o p) ;
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$h[0] = shift @data ;
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ok(20, $h[0] eq 'a' );
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my $ i;
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foreach (@data)
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{ $h[++$i] = $_ }
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unshift (@data, 'a') ;
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ok(21, defined $h[1] );
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ok(22, ! defined $h[16] );
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ok(23, $FA ? @h == @data : $X->length == @data );
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# Overwrite an entry & check fetch it
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$h[3] = 'replaced' ;
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$data[3] = 'replaced' ;
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ok(24, $h[3] eq 'replaced' );
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#PUSH
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my @push_data = qw(added to the end) ;
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($FA ? push(@h, @push_data) : $X->push(@push_data)) ;
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push (@data, @push_data) ;
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ok(25, $h[++$i] eq 'added' );
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ok(26, $h[++$i] eq 'to' );
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ok(27, $h[++$i] eq 'the' );
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ok(28, $h[++$i] eq 'end' );
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# POP
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my $popped = pop (@data) ;
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my $value = ($FA ? pop @h : $X->pop) ;
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ok(29, $value eq $popped) ;
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# SHIFT
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$value = ($FA ? shift @h : $X->shift) ;
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my $shifted = shift @data ;
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ok(30, $value eq $shifted );
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# UNSHIFT
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# empty list
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($FA ? unshift @h : $X->unshift) ;
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ok(31, ($FA ? @h == @data : $X->length == @data ));
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my @new_data = qw(add this to the start of the array) ;
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$FA ? unshift (@h, @new_data) : $X->unshift (@new_data) ;
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unshift (@data, @new_data) ;
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ok(32, $FA ? @h == @data : $X->length == @data );
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ok(33, $h[0] eq "add") ;
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ok(34, $h[1] eq "this") ;
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ok(35, $h[2] eq "to") ;
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ok(36, $h[3] eq "the") ;
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ok(37, $h[4] eq "start") ;
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ok(38, $h[5] eq "of") ;
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ok(39, $h[6] eq "the") ;
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ok(40, $h[7] eq "array") ;
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ok(41, $h[8] eq $data[8]) ;
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# SPLICE
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# Now both arrays should be identical
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my $ok = 1 ;
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my $j = 0 ;
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foreach (@data)
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{
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$ok = 0, last if $_ ne $h[$j ++] ;
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}
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ok(42, $ok );
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# Neagtive subscripts
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# get the last element of the array
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ok(43, $h[-1] eq $data[-1] );
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ok(44, $h[-1] eq $h[ ($FA ? @h : $X->length) -1] );
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# get the first element using a negative subscript
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eval '$h[ - ( $FA ? @h : $X->length)] = "abcd"' ;
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ok(45, $@ eq "" );
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ok(46, $h[0] eq "abcd" );
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# now try to read before the start of the array
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eval '$h[ - (1 + ($FA ? @h : $X->length))] = 1234' ;
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ok(47, $@ =~ '^Modification of non-creatable array value attempted' );
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# IMPORTANT - $X must be undefined before the untie otherwise the
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# underlying DB close routine will not get called.
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undef $X ;
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untie(@h);
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unlink $Dfile;
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{
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# Check bval defaults to \n
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my @h = () ;
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my $dbh = new DB_File::RECNOINFO ;
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ok(48, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ;
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$h[0] = "abc" ;
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$h[1] = "def" ;
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$h[3] = "ghi" ;
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untie @h ;
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my $x = docat($Dfile) ;
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unlink $Dfile;
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ok(49, $x eq "abc\ndef\n\nghi\n") ;
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}
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{
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# Change bval
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my @h = () ;
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my $dbh = new DB_File::RECNOINFO ;
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$dbh->{bval} = "-" ;
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ok(50, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ;
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$h[0] = "abc" ;
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$h[1] = "def" ;
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$h[3] = "ghi" ;
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untie @h ;
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my $x = docat($Dfile) ;
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unlink $Dfile;
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my $ok = ($x eq "abc-def--ghi-") ;
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bad_one() unless $ok ;
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ok(51, $ok) ;
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}
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{
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# Check R_FIXEDLEN with default bval (space)
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my @h = () ;
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my $dbh = new DB_File::RECNOINFO ;
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$dbh->{flags} = R_FIXEDLEN ;
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$dbh->{reclen} = 5 ;
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ok(52, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ;
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$h[0] = "abc" ;
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$h[1] = "def" ;
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$h[3] = "ghi" ;
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untie @h ;
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my $x = docat($Dfile) ;
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unlink $Dfile;
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my $ok = ($x eq "abc def ghi ") ;
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bad_one() unless $ok ;
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ok(53, $ok) ;
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}
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{
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# Check R_FIXEDLEN with user-defined bval
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my @h = () ;
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my $dbh = new DB_File::RECNOINFO ;
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$dbh->{flags} = R_FIXEDLEN ;
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$dbh->{bval} = "-" ;
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$dbh->{reclen} = 5 ;
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ok(54, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ;
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$h[0] = "abc" ;
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$h[1] = "def" ;
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$h[3] = "ghi" ;
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untie @h ;
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my $x = docat($Dfile) ;
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unlink $Dfile;
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my $ok = ($x eq "abc--def-------ghi--") ;
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bad_one() unless $ok ;
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ok(55, $ok) ;
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}
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{
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# check that attempting to tie an associative array to a DB_RECNO will fail
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my $filename = "xyz" ;
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my %x ;
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eval { tie %x, 'DB_File', $filename, O_RDWR|O_CREAT, 0640, $DB_RECNO ; } ;
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ok(56, $@ =~ /^DB_File can only tie an array to a DB_RECNO database/) ;
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unlink $filename ;
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}
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{
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# sub-class test
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package Another ;
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use warnings ;
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use strict ;
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open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ;
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print FILE <<'EOM' ;
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package SubDB ;
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use warnings ;
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use strict ;
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use vars qw( @ISA @EXPORT) ;
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require Exporter ;
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use DB_File;
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@ISA=qw(DB_File);
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@EXPORT = @DB_File::EXPORT ;
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sub STORE {
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my $self = shift ;
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my $key = shift ;
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my $value = shift ;
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$self->SUPER::STORE($key, $value * 2) ;
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}
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sub FETCH {
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my $self = shift ;
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my $key = shift ;
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$self->SUPER::FETCH($key) - 1 ;
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}
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sub put {
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my $self = shift ;
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my $key = shift ;
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my $value = shift ;
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$self->SUPER::put($key, $value * 3) ;
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}
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sub get {
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my $self = shift ;
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$self->SUPER::get($_[0], $_[1]) ;
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$_[1] -= 2 ;
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}
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sub A_new_method
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{
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my $self = shift ;
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my $key = shift ;
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my $value = $self->FETCH($key) ;
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return "[[$value]]" ;
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}
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1 ;
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EOM
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close FILE ;
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BEGIN { push @INC, '.'; }
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eval 'use SubDB ; ';
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main::ok(57, $@ eq "") ;
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my @h ;
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my $X ;
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eval '
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$X = tie(@h, "SubDB","recno.tmp", O_RDWR|O_CREAT, 0640, $DB_RECNO );
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' ;
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main::ok(58, $@ eq "") ;
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my $ret = eval '$h[3] = 3 ; return $h[3] ' ;
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main::ok(59, $@ eq "") ;
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main::ok(60, $ret == 5) ;
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my $value = 0;
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$ret = eval '$X->put(1, 4) ; $X->get(1, $value) ; return $value' ;
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main::ok(61, $@ eq "") ;
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main::ok(62, $ret == 10) ;
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$ret = eval ' R_NEXT eq main::R_NEXT ' ;
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main::ok(63, $@ eq "" ) ;
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main::ok(64, $ret == 1) ;
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$ret = eval '$X->A_new_method(1) ' ;
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main::ok(65, $@ eq "") ;
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main::ok(66, $ret eq "[[11]]") ;
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undef $X;
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untie(@h);
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unlink "SubDB.pm", "recno.tmp" ;
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}
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{
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# test $#
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my $self ;
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unlink $Dfile;
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ok(67, $self = tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ;
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$h[0] = "abc" ;
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$h[1] = "def" ;
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$h[2] = "ghi" ;
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$h[3] = "jkl" ;
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ok(68, $FA ? $#h == 3 : $self->length() == 4) ;
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undef $self ;
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untie @h ;
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my $x = docat($Dfile) ;
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ok(69, $x eq "abc\ndef\nghi\njkl\n") ;
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# $# sets array to same length
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ok(70, $self = tie @h, 'DB_File', $Dfile, O_RDWR, 0640, $DB_RECNO ) ;
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if ($FA)
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{ $#h = 3 }
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else
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{ $self->STORESIZE(4) }
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ok(71, $FA ? $#h == 3 : $self->length() == 4) ;
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undef $self ;
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untie @h ;
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$x = docat($Dfile) ;
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ok(72, $x eq "abc\ndef\nghi\njkl\n") ;
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# $# sets array to bigger
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ok(73, $self = tie @h, 'DB_File', $Dfile, O_RDWR, 0640, $DB_RECNO ) ;
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if ($FA)
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{ $#h = 6 }
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else
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{ $self->STORESIZE(7) }
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ok(74, $FA ? $#h == 6 : $self->length() == 7) ;
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undef $self ;
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untie @h ;
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$x = docat($Dfile) ;
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ok(75, $x eq "abc\ndef\nghi\njkl\n\n\n\n") ;
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# $# sets array smaller
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ok(76, $self = tie @h, 'DB_File', $Dfile, O_RDWR, 0640, $DB_RECNO ) ;
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if ($FA)
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{ $#h = 2 }
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else
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{ $self->STORESIZE(3) }
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ok(77, $FA ? $#h == 2 : $self->length() == 3) ;
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undef $self ;
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untie @h ;
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$x = docat($Dfile) ;
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ok(78, $x eq "abc\ndef\nghi\n") ;
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unlink $Dfile;
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}
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{
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# DBM Filter tests
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use warnings ;
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use strict ;
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my (@h, $db) ;
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my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
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unlink $Dfile;
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sub checkOutput
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{
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my($fk, $sk, $fv, $sv) = @_ ;
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return
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$fetch_key eq $fk && $store_key eq $sk &&
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$fetch_value eq $fv && $store_value eq $sv &&
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$_ eq 'original' ;
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}
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ok(79, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) );
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$db->filter_fetch_key (sub { $fetch_key = $_ }) ;
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$db->filter_store_key (sub { $store_key = $_ }) ;
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$db->filter_fetch_value (sub { $fetch_value = $_}) ;
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$db->filter_store_value (sub { $store_value = $_ }) ;
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$_ = "original" ;
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$h[0] = "joe" ;
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# fk sk fv sv
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ok(80, checkOutput( "", 0, "", "joe")) ;
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($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(81, $h[0] eq "joe");
|
|
# fk sk fv sv
|
|
ok(82, checkOutput( "", 0, "joe", "")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(83, $db->FIRSTKEY() == 0) ;
|
|
# fk sk fv sv
|
|
ok(84, checkOutput( 0, "", "", "")) ;
|
|
|
|
# replace the filters, but remember the previous set
|
|
my ($old_fk) = $db->filter_fetch_key
|
|
(sub { ++ $_ ; $fetch_key = $_ }) ;
|
|
my ($old_sk) = $db->filter_store_key
|
|
(sub { $_ *= 2 ; $store_key = $_ }) ;
|
|
my ($old_fv) = $db->filter_fetch_value
|
|
(sub { $_ = "[$_]"; $fetch_value = $_ }) ;
|
|
my ($old_sv) = $db->filter_store_value
|
|
(sub { s/o/x/g; $store_value = $_ }) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
$h[1] = "Joe" ;
|
|
# fk sk fv sv
|
|
ok(85, checkOutput( "", 2, "", "Jxe")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(86, $h[1] eq "[Jxe]");
|
|
# fk sk fv sv
|
|
ok(87, checkOutput( "", 2, "[Jxe]", "")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(88, $db->FIRSTKEY() == 1) ;
|
|
# fk sk fv sv
|
|
ok(89, checkOutput( 1, "", "", "")) ;
|
|
|
|
# put the original filters back
|
|
$db->filter_fetch_key ($old_fk);
|
|
$db->filter_store_key ($old_sk);
|
|
$db->filter_fetch_value ($old_fv);
|
|
$db->filter_store_value ($old_sv);
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
$h[0] = "joe" ;
|
|
ok(90, checkOutput( "", 0, "", "joe")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(91, $h[0] eq "joe");
|
|
ok(92, checkOutput( "", 0, "joe", "")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(93, $db->FIRSTKEY() == 0) ;
|
|
ok(94, checkOutput( 0, "", "", "")) ;
|
|
|
|
# delete the filters
|
|
$db->filter_fetch_key (undef);
|
|
$db->filter_store_key (undef);
|
|
$db->filter_fetch_value (undef);
|
|
$db->filter_store_value (undef);
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
$h[0] = "joe" ;
|
|
ok(95, checkOutput( "", "", "", "")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(96, $h[0] eq "joe");
|
|
ok(97, checkOutput( "", "", "", "")) ;
|
|
|
|
($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
|
|
ok(98, $db->FIRSTKEY() == 0) ;
|
|
ok(99, checkOutput( "", "", "", "")) ;
|
|
|
|
undef $db ;
|
|
untie @h;
|
|
unlink $Dfile;
|
|
}
|
|
|
|
{
|
|
# DBM Filter with a closure
|
|
|
|
use warnings ;
|
|
use strict ;
|
|
my (@h, $db) ;
|
|
|
|
unlink $Dfile;
|
|
ok(100, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) );
|
|
|
|
my %result = () ;
|
|
|
|
sub Closure
|
|
{
|
|
my ($name) = @_ ;
|
|
my $count = 0 ;
|
|
my @kept = () ;
|
|
|
|
return sub { ++$count ;
|
|
push @kept, $_ ;
|
|
$result{$name} = "$name - $count: [@kept]" ;
|
|
}
|
|
}
|
|
|
|
$db->filter_store_key(Closure("store key")) ;
|
|
$db->filter_store_value(Closure("store value")) ;
|
|
$db->filter_fetch_key(Closure("fetch key")) ;
|
|
$db->filter_fetch_value(Closure("fetch value")) ;
|
|
|
|
$_ = "original" ;
|
|
|
|
$h[0] = "joe" ;
|
|
ok(101, $result{"store key"} eq "store key - 1: [0]");
|
|
ok(102, $result{"store value"} eq "store value - 1: [joe]");
|
|
ok(103, ! defined $result{"fetch key"} );
|
|
ok(104, ! defined $result{"fetch value"} );
|
|
ok(105, $_ eq "original") ;
|
|
|
|
ok(106, $db->FIRSTKEY() == 0 ) ;
|
|
ok(107, $result{"store key"} eq "store key - 1: [0]");
|
|
ok(108, $result{"store value"} eq "store value - 1: [joe]");
|
|
ok(109, $result{"fetch key"} eq "fetch key - 1: [0]");
|
|
ok(110, ! defined $result{"fetch value"} );
|
|
ok(111, $_ eq "original") ;
|
|
|
|
$h[7] = "john" ;
|
|
ok(112, $result{"store key"} eq "store key - 2: [0 7]");
|
|
ok(113, $result{"store value"} eq "store value - 2: [joe john]");
|
|
ok(114, $result{"fetch key"} eq "fetch key - 1: [0]");
|
|
ok(115, ! defined $result{"fetch value"} );
|
|
ok(116, $_ eq "original") ;
|
|
|
|
ok(117, $h[0] eq "joe");
|
|
ok(118, $result{"store key"} eq "store key - 3: [0 7 0]");
|
|
ok(119, $result{"store value"} eq "store value - 2: [joe john]");
|
|
ok(120, $result{"fetch key"} eq "fetch key - 1: [0]");
|
|
ok(121, $result{"fetch value"} eq "fetch value - 1: [joe]");
|
|
ok(122, $_ eq "original") ;
|
|
|
|
undef $db ;
|
|
untie @h;
|
|
unlink $Dfile;
|
|
}
|
|
|
|
{
|
|
# DBM Filter recursion detection
|
|
use warnings ;
|
|
use strict ;
|
|
my (@h, $db) ;
|
|
unlink $Dfile;
|
|
|
|
ok(123, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) );
|
|
|
|
$db->filter_store_key (sub { $_ = $h[0] }) ;
|
|
|
|
eval '$h[1] = 1234' ;
|
|
ok(124, $@ =~ /^recursion detected in filter_store_key at/ );
|
|
|
|
undef $db ;
|
|
untie @h;
|
|
unlink $Dfile;
|
|
}
|
|
|
|
|
|
{
|
|
# Examples from the POD
|
|
|
|
my $file = "xyzt" ;
|
|
{
|
|
my $redirect = new Redirect $file ;
|
|
|
|
use warnings FATAL => qw(all);
|
|
use strict ;
|
|
use DB_File ;
|
|
|
|
my $filename = "text" ;
|
|
unlink $filename ;
|
|
|
|
my @h ;
|
|
my $x = tie @h, "DB_File", $filename, O_RDWR|O_CREAT, 0640, $DB_RECNO
|
|
or die "Cannot open file 'text': $!\n" ;
|
|
|
|
# Add a few key/value pairs to the file
|
|
$h[0] = "orange" ;
|
|
$h[1] = "blue" ;
|
|
$h[2] = "yellow" ;
|
|
|
|
$FA ? push @h, "green", "black"
|
|
: $x->push("green", "black") ;
|
|
|
|
my $elements = $FA ? scalar @h : $x->length ;
|
|
print "The array contains $elements entries\n" ;
|
|
|
|
my $last = $FA ? pop @h : $x->pop ;
|
|
print "popped $last\n" ;
|
|
|
|
$FA ? unshift @h, "white"
|
|
: $x->unshift("white") ;
|
|
my $first = $FA ? shift @h : $x->shift ;
|
|
print "shifted $first\n" ;
|
|
|
|
# Check for existence of a key
|
|
print "Element 1 Exists with value $h[1]\n" if $h[1] ;
|
|
|
|
# use a negative index
|
|
print "The last element is $h[-1]\n" ;
|
|
print "The 2nd last element is $h[-2]\n" ;
|
|
|
|
undef $x ;
|
|
untie @h ;
|
|
|
|
unlink $filename ;
|
|
}
|
|
|
|
ok(125, docat_del($file) eq <<'EOM') ;
|
|
The array contains 5 entries
|
|
popped black
|
|
shifted white
|
|
Element 1 Exists with value blue
|
|
The last element is green
|
|
The 2nd last element is yellow
|
|
EOM
|
|
|
|
my $save_output = "xyzt" ;
|
|
{
|
|
my $redirect = new Redirect $save_output ;
|
|
|
|
use warnings FATAL => qw(all);
|
|
use strict ;
|
|
use vars qw(@h $H $file $i) ;
|
|
use DB_File ;
|
|
use Fcntl ;
|
|
|
|
$file = "text" ;
|
|
|
|
unlink $file ;
|
|
|
|
$H = tie @h, "DB_File", $file, O_RDWR|O_CREAT, 0640, $DB_RECNO
|
|
or die "Cannot open file $file: $!\n" ;
|
|
|
|
# first create a text file to play with
|
|
$h[0] = "zero" ;
|
|
$h[1] = "one" ;
|
|
$h[2] = "two" ;
|
|
$h[3] = "three" ;
|
|
$h[4] = "four" ;
|
|
|
|
|
|
# Print the records in order.
|
|
#
|
|
# The length method is needed here because evaluating a tied
|
|
# array in a scalar context does not return the number of
|
|
# elements in the array.
|
|
|
|
print "\nORIGINAL\n" ;
|
|
foreach $i (0 .. $H->length - 1) {
|
|
print "$i: $h[$i]\n" ;
|
|
}
|
|
|
|
# use the push & pop methods
|
|
$a = $H->pop ;
|
|
$H->push("last") ;
|
|
print "\nThe last record was [$a]\n" ;
|
|
|
|
# and the shift & unshift methods
|
|
$a = $H->shift ;
|
|
$H->unshift("first") ;
|
|
print "The first record was [$a]\n" ;
|
|
|
|
# Use the API to add a new record after record 2.
|
|
$i = 2 ;
|
|
$H->put($i, "Newbie", R_IAFTER) ;
|
|
|
|
# and a new record before record 1.
|
|
$i = 1 ;
|
|
$H->put($i, "New One", R_IBEFORE) ;
|
|
|
|
# delete record 3
|
|
$H->del(3) ;
|
|
|
|
# now print the records in reverse order
|
|
print "\nREVERSE\n" ;
|
|
for ($i = $H->length - 1 ; $i >= 0 ; -- $i)
|
|
{ print "$i: $h[$i]\n" }
|
|
|
|
# same again, but use the API functions instead
|
|
print "\nREVERSE again\n" ;
|
|
my ($s, $k, $v) = (0, 0, 0) ;
|
|
for ($s = $H->seq($k, $v, R_LAST) ;
|
|
$s == 0 ;
|
|
$s = $H->seq($k, $v, R_PREV))
|
|
{ print "$k: $v\n" }
|
|
|
|
undef $H ;
|
|
untie @h ;
|
|
|
|
unlink $file ;
|
|
}
|
|
|
|
ok(126, docat_del($save_output) eq <<'EOM') ;
|
|
|
|
ORIGINAL
|
|
0: zero
|
|
1: one
|
|
2: two
|
|
3: three
|
|
4: four
|
|
|
|
The last record was [four]
|
|
The first record was [zero]
|
|
|
|
REVERSE
|
|
5: last
|
|
4: three
|
|
3: Newbie
|
|
2: one
|
|
1: New One
|
|
0: first
|
|
|
|
REVERSE again
|
|
5: last
|
|
4: three
|
|
3: Newbie
|
|
2: one
|
|
1: New One
|
|
0: first
|
|
EOM
|
|
|
|
}
|
|
|
|
{
|
|
# Bug ID 20001013.009
|
|
#
|
|
# test that $hash{KEY} = undef doesn't produce the warning
|
|
# Use of uninitialized value in null operation
|
|
use warnings ;
|
|
use strict ;
|
|
use DB_File ;
|
|
|
|
unlink $Dfile;
|
|
my @h ;
|
|
my $a = "";
|
|
local $SIG{__WARN__} = sub {$a = $_[0]} ;
|
|
|
|
tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0664, $DB_RECNO
|
|
or die "Can't open file: $!\n" ;
|
|
$h[0] = undef;
|
|
ok(127, $a eq "") ;
|
|
untie @h ;
|
|
unlink $Dfile;
|
|
}
|
|
|
|
{
|
|
# test that %hash = () doesn't produce the warning
|
|
# Argument "" isn't numeric in entersub
|
|
use warnings ;
|
|
use strict ;
|
|
use DB_File ;
|
|
my $a = "";
|
|
local $SIG{__WARN__} = sub {$a = $_[0]} ;
|
|
|
|
unlink $Dfile;
|
|
my @h ;
|
|
|
|
tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0664, $DB_RECNO
|
|
or die "Can't open file: $!\n" ;
|
|
@h = (); ;
|
|
ok(128, $a eq "") ;
|
|
untie @h ;
|
|
unlink $Dfile;
|
|
}
|
|
|
|
exit ;
|