db-hash.t
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:16k
- #!./perl
- use warnings ;
- use strict ;
- BEGIN {
- unless(grep /blib/, @INC) {
- chdir 't' if -d 't';
- @INC = '../lib' if -d '../lib';
- }
- }
-
- use Config;
-
- BEGIN {
- if(-d "lib" && -f "TEST") {
- if ($Config{'extensions'} !~ /bDB_Fileb/ ) {
- print "1..111n";
- exit 0;
- }
- }
- }
- use DB_File;
- use Fcntl;
- print "1..111n";
- sub ok
- {
- my $no = shift ;
- my $result = shift ;
-
- print "not " unless $result ;
- print "ok $non" ;
- }
- {
- package Redirect ;
- use Symbol ;
- sub new
- {
- my $class = shift ;
- my $filename = shift ;
- my $fh = gensym ;
- open ($fh, ">$filename") || die "Cannot open $filename: $!" ;
- my $real_stdout = select($fh) ;
- return bless [$fh, $real_stdout ] ;
- }
- sub DESTROY
- {
- my $self = shift ;
- close $self->[0] ;
- select($self->[1]) ;
- }
- }
- sub docat_del
- {
- my $file = shift;
- local $/ = undef;
- open(CAT,$file) || die "Cannot open $file: $!";
- my $result = <CAT>;
- close(CAT);
- unlink $file ;
- return $result;
- }
- my $Dfile = "dbhash.tmp";
- my $null_keys_allowed = ($DB_File::db_ver < 2.004010
- || $DB_File::db_ver >= 3.1 );
- unlink $Dfile;
- umask(0);
- # Check the interface to HASHINFO
- my $dbh = new DB_File::HASHINFO ;
- ok(1, ! defined $dbh->{bsize}) ;
- ok(2, ! defined $dbh->{ffactor}) ;
- ok(3, ! defined $dbh->{nelem}) ;
- ok(4, ! defined $dbh->{cachesize}) ;
- ok(5, ! defined $dbh->{hash}) ;
- ok(6, ! defined $dbh->{lorder}) ;
- $dbh->{bsize} = 3000 ;
- ok(7, $dbh->{bsize} == 3000 );
- $dbh->{ffactor} = 9000 ;
- ok(8, $dbh->{ffactor} == 9000 );
- $dbh->{nelem} = 400 ;
- ok(9, $dbh->{nelem} == 400 );
- $dbh->{cachesize} = 65 ;
- ok(10, $dbh->{cachesize} == 65 );
- $dbh->{hash} = "abc" ;
- ok(11, $dbh->{hash} eq "abc" );
- $dbh->{lorder} = 1234 ;
- ok(12, $dbh->{lorder} == 1234 );
- # Check that an invalid entry is caught both for store & fetch
- eval '$dbh->{fred} = 1234' ;
- ok(13, $@ =~ /^DB_File::HASHINFO::STORE - Unknown element 'fred' at/ );
- eval 'my $q = $dbh->{fred}' ;
- ok(14, $@ =~ /^DB_File::HASHINFO::FETCH - Unknown element 'fred' at/ );
- # Now check the interface to HASH
- my ($X, %h);
- ok(15, $X = tie(%h, 'DB_File',$Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
- my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
- $blksize,$blocks) = stat($Dfile);
- ok(16, ($mode & 0777) == ($^O eq 'os2' ? 0666 : 0640) || $^O eq 'amigaos' || $^O eq 'MSWin32');
- my ($key, $value, $i);
- while (($key,$value) = each(%h)) {
- $i++;
- }
- ok(17, !$i );
- $h{'goner1'} = 'snork';
- $h{'abc'} = 'ABC';
- ok(18, $h{'abc'} eq 'ABC' );
- ok(19, !defined $h{'jimmy'} );
- ok(20, !exists $h{'jimmy'} );
- ok(21, exists $h{'abc'} );
- $h{'def'} = 'DEF';
- $h{'jkl','mno'} = "JKL34MNO";
- $h{'a',2,3,4,5} = join("34",'A',2,3,4,5);
- $h{'a'} = 'A';
- #$h{'b'} = 'B';
- $X->STORE('b', 'B') ;
- $h{'c'} = 'C';
- #$h{'d'} = 'D';
- $X->put('d', 'D') ;
- $h{'e'} = 'E';
- $h{'f'} = 'F';
- $h{'g'} = 'X';
- $h{'h'} = 'H';
- $h{'i'} = 'I';
- $h{'goner2'} = 'snork';
- delete $h{'goner2'};
- # IMPORTANT - $X must be undefined before the untie otherwise the
- # underlying DB close routine will not get called.
- undef $X ;
- untie(%h);
- # tie to the same file again, do not supply a type - should default to HASH
- ok(22, $X = tie(%h,'DB_File',$Dfile, O_RDWR, 0640) );
- # Modify an entry from the previous tie
- $h{'g'} = 'G';
- $h{'j'} = 'J';
- $h{'k'} = 'K';
- $h{'l'} = 'L';
- $h{'m'} = 'M';
- $h{'n'} = 'N';
- $h{'o'} = 'O';
- $h{'p'} = 'P';
- $h{'q'} = 'Q';
- $h{'r'} = 'R';
- $h{'s'} = 'S';
- $h{'t'} = 'T';
- $h{'u'} = 'U';
- $h{'v'} = 'V';
- $h{'w'} = 'W';
- $h{'x'} = 'X';
- $h{'y'} = 'Y';
- $h{'z'} = 'Z';
- $h{'goner3'} = 'snork';
- delete $h{'goner1'};
- $X->DELETE('goner3');
- my @keys = keys(%h);
- my @values = values(%h);
- ok(23, $#keys == 29 && $#values == 29) ;
- $i = 0 ;
- while (($key,$value) = each(%h)) {
- if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
- $key =~ y/a-z/A-Z/;
- $i++ if $key eq $value;
- }
- }
- ok(24, $i == 30) ;
- @keys = ('blurfl', keys(%h), 'dyick');
- ok(25, $#keys == 31) ;
- $h{'foo'} = '';
- ok(26, $h{'foo'} eq '' );
- # Berkeley DB from version 2.4.10 to 3.0 does not allow null keys.
- # This feature was reenabled in version 3.1 of Berkeley DB.
- my $result = 0 ;
- if ($null_keys_allowed) {
- $h{''} = 'bar';
- $result = ( $h{''} eq 'bar' );
- }
- else
- { $result = 1 }
- ok(27, $result) ;
- # check cache overflow and numeric keys and contents
- my $ok = 1;
- for ($i = 1; $i < 200; $i++) { $h{$i + 0} = $i + 0; }
- for ($i = 1; $i < 200; $i++) { $ok = 0 unless $h{$i} == $i; }
- ok(28, $ok );
- ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
- $blksize,$blocks) = stat($Dfile);
- ok(29, $size > 0 );
- @h{0..200} = 200..400;
- my @foo = @h{0..200};
- ok(30, join(':',200..400) eq join(':',@foo) );
- # Now check all the non-tie specific stuff
- # Check NOOVERWRITE will make put fail when attempting to overwrite
- # an existing record.
-
- my $status = $X->put( 'x', 'newvalue', R_NOOVERWRITE) ;
- ok(31, $status == 1 );
-
- # check that the value of the key 'x' has not been changed by the
- # previous test
- ok(32, $h{'x'} eq 'X' );
- # standard put
- $status = $X->put('key', 'value') ;
- ok(33, $status == 0 );
- #check that previous put can be retrieved
- $value = 0 ;
- $status = $X->get('key', $value) ;
- ok(34, $status == 0 );
- ok(35, $value eq 'value' );
- # Attempting to delete an existing key should work
- $status = $X->del('q') ;
- ok(36, $status == 0 );
- # Make sure that the key deleted, cannot be retrieved
- {
- no warnings 'uninitialized' ;
- ok(37, $h{'q'} eq undef );
- }
- # Attempting to delete a non-existant key should fail
- $status = $X->del('joe') ;
- ok(38, $status == 1 );
- # Check the get interface
- # First a non-existing key
- $status = $X->get('aaaa', $value) ;
- ok(39, $status == 1 );
- # Next an existing key
- $status = $X->get('a', $value) ;
- ok(40, $status == 0 );
- ok(41, $value eq 'A' );
- # seq
- # ###
- # ditto, but use put to replace the key/value pair.
- # use seq to walk backwards through a file - check that this reversed is
- # check seq FIRST/LAST
- # sync
- # ####
- $status = $X->sync ;
- ok(42, $status == 0 );
- # fd
- # ##
- $status = $X->fd ;
- ok(43, $status != 0 );
- undef $X ;
- untie %h ;
- unlink $Dfile;
- # clear
- # #####
- ok(44, tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
- foreach (1 .. 10)
- { $h{$_} = $_ * 100 }
- # check that there are 10 elements in the hash
- $i = 0 ;
- while (($key,$value) = each(%h)) {
- $i++;
- }
- ok(45, $i == 10);
- # now clear the hash
- %h = () ;
- # check it is empty
- $i = 0 ;
- while (($key,$value) = each(%h)) {
- $i++;
- }
- ok(46, $i == 0);
- untie %h ;
- unlink $Dfile ;
- # Now try an in memory file
- ok(47, $X = tie(%h, 'DB_File',undef, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
- # fd with an in memory file should return fail
- $status = $X->fd ;
- ok(48, $status == -1 );
- undef $X ;
- untie %h ;
- {
- # check ability to override the default hashing
- my %x ;
- my $filename = "xyz" ;
- my $hi = new DB_File::HASHINFO ;
- $::count = 0 ;
- $hi->{hash} = sub { ++$::count ; length $_[0] } ;
- ok(49, tie %x, 'DB_File', $filename, O_RDWR|O_CREAT, 0640, $hi ) ;
- $h{"abc"} = 123 ;
- ok(50, $h{"abc"} == 123) ;
- untie %x ;
- unlink $filename ;
- ok(51, $::count >0) ;
- }
- {
- # check that attempting to tie an array to a DB_HASH will fail
- my $filename = "xyz" ;
- my @x ;
- eval { tie @x, 'DB_File', $filename, O_RDWR|O_CREAT, 0640, $DB_HASH ; } ;
- ok(52, $@ =~ /^DB_File can only tie an associative array to a DB_HASH database/) ;
- unlink $filename ;
- }
- {
- # sub-class test
- package Another ;
- use warnings ;
- use strict ;
- open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!n" ;
- print FILE <<'EOM' ;
- package SubDB ;
- use warnings ;
- use strict ;
- use vars qw( @ISA @EXPORT) ;
- require Exporter ;
- use DB_File;
- @ISA=qw(DB_File);
- @EXPORT = @DB_File::EXPORT ;
- sub STORE {
- my $self = shift ;
- my $key = shift ;
- my $value = shift ;
- $self->SUPER::STORE($key, $value * 2) ;
- }
- sub FETCH {
- my $self = shift ;
- my $key = shift ;
- $self->SUPER::FETCH($key) - 1 ;
- }
- sub put {
- my $self = shift ;
- my $key = shift ;
- my $value = shift ;
- $self->SUPER::put($key, $value * 3) ;
- }
- sub get {
- my $self = shift ;
- $self->SUPER::get($_[0], $_[1]) ;
- $_[1] -= 2 ;
- }
- sub A_new_method
- {
- my $self = shift ;
- my $key = shift ;
- my $value = $self->FETCH($key) ;
- return "[[$value]]" ;
- }
- 1 ;
- EOM
- close FILE ;
- BEGIN { push @INC, '.'; }
- eval 'use SubDB ; ';
- main::ok(53, $@ eq "") ;
- my %h ;
- my $X ;
- eval '
- $X = tie(%h, "SubDB","dbhash.tmp", O_RDWR|O_CREAT, 0640, $DB_HASH );
- ' ;
- main::ok(54, $@ eq "") ;
- my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
- main::ok(55, $@ eq "") ;
- main::ok(56, $ret == 5) ;
- my $value = 0;
- $ret = eval '$X->put("joe", 4) ; $X->get("joe", $value) ; return $value' ;
- main::ok(57, $@ eq "") ;
- main::ok(58, $ret == 10) ;
- $ret = eval ' R_NEXT eq main::R_NEXT ' ;
- main::ok(59, $@ eq "" ) ;
- main::ok(60, $ret == 1) ;
- $ret = eval '$X->A_new_method("joe") ' ;
- main::ok(61, $@ eq "") ;
- main::ok(62, $ret eq "[[11]]") ;
- undef $X;
- untie(%h);
- unlink "SubDB.pm", "dbhash.tmp" ;
- }
- {
- # DBM Filter tests
- use warnings ;
- use strict ;
- my (%h, $db) ;
- my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- unlink $Dfile;
- sub checkOutput
- {
- my($fk, $sk, $fv, $sv) = @_ ;
- return
- $fetch_key eq $fk && $store_key eq $sk &&
- $fetch_value eq $fv && $store_value eq $sv &&
- $_ eq 'original' ;
- }
-
- ok(63, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
- $db->filter_fetch_key (sub { $fetch_key = $_ }) ;
- $db->filter_store_key (sub { $store_key = $_ }) ;
- $db->filter_fetch_value (sub { $fetch_value = $_}) ;
- $db->filter_store_value (sub { $store_value = $_ }) ;
- $_ = "original" ;
- $h{"fred"} = "joe" ;
- # fk sk fv sv
- ok(64, checkOutput( "", "fred", "", "joe")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(65, $h{"fred"} eq "joe");
- # fk sk fv sv
- ok(66, checkOutput( "", "fred", "joe", "")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(67, $db->FIRSTKEY() eq "fred") ;
- # fk sk fv sv
- ok(68, checkOutput( "fred", "", "", "")) ;
- # replace the filters, but remember the previous set
- my ($old_fk) = $db->filter_fetch_key
- (sub { $_ = uc $_ ; $fetch_key = $_ }) ;
- my ($old_sk) = $db->filter_store_key
- (sub { $_ = lc $_ ; $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 ;
- $h{"Fred"} = "Joe" ;
- # fk sk fv sv
- ok(69, checkOutput( "", "fred", "", "Jxe")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(70, $h{"Fred"} eq "[Jxe]");
- # fk sk fv sv
- ok(71, checkOutput( "", "fred", "[Jxe]", "")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(72, $db->FIRSTKEY() eq "FRED") ;
- # fk sk fv sv
- ok(73, checkOutput( "FRED", "", "", "")) ;
- # 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 ;
- $h{"fred"} = "joe" ;
- ok(74, checkOutput( "", "fred", "", "joe")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(75, $h{"fred"} eq "joe");
- ok(76, checkOutput( "", "fred", "joe", "")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(77, $db->FIRSTKEY() eq "fred") ;
- ok(78, checkOutput( "fred", "", "", "")) ;
- # 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 ;
- $h{"fred"} = "joe" ;
- ok(79, checkOutput( "", "", "", "")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(80, $h{"fred"} eq "joe");
- ok(81, checkOutput( "", "", "", "")) ;
- ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
- ok(82, $db->FIRSTKEY() eq "fred") ;
- ok(83, checkOutput( "", "", "", "")) ;
- undef $db ;
- untie %h;
- unlink $Dfile;
- }
- {
- # DBM Filter with a closure
- use warnings ;
- use strict ;
- my (%h, $db) ;
- unlink $Dfile;
- ok(84, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
- my %result = () ;
- sub Closure
- {
- my ($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{"fred"} = "joe" ;
- ok(85, $result{"store key"} eq "store key - 1: [fred]");
- ok(86, $result{"store value"} eq "store value - 1: [joe]");
- ok(87, ! defined $result{"fetch key"} );
- ok(88, ! defined $result{"fetch value"} );
- ok(89, $_ eq "original") ;
- ok(90, $db->FIRSTKEY() eq "fred") ;
- ok(91, $result{"store key"} eq "store key - 1: [fred]");
- ok(92, $result{"store value"} eq "store value - 1: [joe]");
- ok(93, $result{"fetch key"} eq "fetch key - 1: [fred]");
- ok(94, ! defined $result{"fetch value"} );
- ok(95, $_ eq "original") ;
- $h{"jim"} = "john" ;
- ok(96, $result{"store key"} eq "store key - 2: [fred jim]");
- ok(97, $result{"store value"} eq "store value - 2: [joe john]");
- ok(98, $result{"fetch key"} eq "fetch key - 1: [fred]");
- ok(99, ! defined $result{"fetch value"} );
- ok(100, $_ eq "original") ;
- ok(101, $h{"fred"} eq "joe");
- ok(102, $result{"store key"} eq "store key - 3: [fred jim fred]");
- ok(103, $result{"store value"} eq "store value - 2: [joe john]");
- ok(104, $result{"fetch key"} eq "fetch key - 1: [fred]");
- ok(105, $result{"fetch value"} eq "fetch value - 1: [joe]");
- ok(106, $_ eq "original") ;
- undef $db ;
- untie %h;
- unlink $Dfile;
- }
- {
- # DBM Filter recursion detection
- use warnings ;
- use strict ;
- my (%h, $db) ;
- unlink $Dfile;
- ok(107, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
- $db->filter_store_key (sub { $_ = $h{$_} }) ;
- eval '$h{1} = 1234' ;
- ok(108, $@ =~ /^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 ;
- use vars qw( %h $k $v ) ;
- unlink "fruit" ;
- tie %h, "DB_File", "fruit", O_RDWR|O_CREAT, 0640, $DB_HASH
- or die "Cannot open file 'fruit': $!n";
- # Add a few key/value pairs to the file
- $h{"apple"} = "red" ;
- $h{"orange"} = "orange" ;
- $h{"banana"} = "yellow" ;
- $h{"tomato"} = "red" ;
- # Check for existence of a key
- print "Banana Existsnn" if $h{"banana"} ;
- # Delete a key/value pair.
- delete $h{"apple"} ;
- # print the contents of the file
- while (($k, $v) = each %h)
- { print "$k -> $vn" }
- untie %h ;
- unlink "fruit" ;
- }
- ok(109, docat_del($file) eq <<'EOM') ;
- Banana Exists
- orange -> orange
- tomato -> red
- banana -> yellow
- 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 or die "Can't open file: $!n" ;
- $h{ABC} = undef;
- ok(110, $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 ;
- unlink $Dfile;
- my %h ;
- my $a = "";
- local $SIG{__WARN__} = sub {$a = $_[0]} ;
-
- tie %h, 'DB_File', $Dfile or die "Can't open file: $!n" ;
- %h = (); ;
- ok(111, $a eq "") ;
- untie %h ;
- unlink $Dfile;
- }
- exit ;