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|
use strict;
use warnings FATAL => 'all';
use Test::More;
use Test::Exception;
use t::common qw( new_dbm );
use Scalar::Util qw( reftype );
use_ok( 'DBM::Deep' );
my $dbm_factory = new_dbm();
while ( my $dbm_maker = $dbm_factory->() ) {
my $db = $dbm_maker->();
##
# put/get key
##
$db->{key1} = "value1";
is( $db->get("key1"), "value1", "get() works with hash assignment" );
is( $db->fetch("key1"), "value1", "... fetch() works with hash assignment" );
is( $db->{key1}, "value1", "... and hash-access also works" );
$db->put("key2", undef);
is( $db->get("key2"), undef, "get() works with put()" );
is( $db->fetch("key2"), undef, "... fetch() works with put()" );
is( $db->{key2}, undef, "... and hash-access also works" );
$db->store( "0", "value3" );
is( $db->get("0"), "value3", "get() works with store()" );
is( $db->fetch("0"), "value3", "... fetch() works with put()" );
is( $db->{0}, 'value3', "... and hash-access also works" );
# Verify that the keyval pairs are still correct.
is( $db->{key1}, "value1", "Key1 is still correct" );
is( $db->{key2}, undef, "Key2 is still correct" );
is( $db->{0}, 'value3', "Key3 is still correct" );
ok( $db->exists("key1"), "exists() function works" );
ok( exists $db->{key2}, "exists() works against tied hash" );
ok( !exists $db->{key4}, "exists() function works for keys that aren't there" );
is( $db->{key4}, undef, "Nonexistent key4 is undef" );
ok( !exists $db->{key4}, "Simply reading key4 does not autovivify" );
# Keys will be done via an iterator that keeps a breadcrumb trail of the last
# key it provided. There will also be an "edit revision number" on the
# reference so that resetting the iterator can be done.
#
# Q: How do we make sure that the iterator is unique? Is it supposed to be?
##
# count keys
##
is( scalar keys %$db, 3, "keys() works against tied hash" );
##
# step through keys
##
my $temphash = {};
while ( my ($key, $value) = each %$db ) {
$temphash->{$key} = $value;
}
is( $temphash->{key1}, 'value1', "First key copied successfully using tied interface" );
is( $temphash->{key2}, undef, "Second key copied successfully" );
is( $temphash->{0}, 'value3', "Third key copied successfully" );
$temphash = {};
my $key = $db->first_key();
while (defined $key) {
$temphash->{$key} = $db->get($key);
$key = $db->next_key($key);
}
is( $temphash->{key1}, 'value1', "First key copied successfully using OO interface" );
is( $temphash->{key2}, undef, "Second key copied successfully" );
is( $temphash->{0}, 'value3', "Third key copied successfully" );
##
# delete keys
##
is( delete $db->{key2}, undef, "delete through tied inteface works" );
is( $db->delete("key1"), 'value1', "delete through OO inteface works" );
is( $db->{0}, 'value3', "The other key is still there" );
ok( !exists $db->{key1}, "key1 doesn't exist" );
ok( !exists $db->{key2}, "key2 doesn't exist" );
is( scalar keys %$db, 1, "After deleting two keys, 1 remains" );
##
# delete all keys
##
ok( $db->clear(), "clear() returns true" );
is( scalar keys %$db, 0, "After clear(), everything is removed" );
##
# replace key
##
$db->put("key1", "value1");
is( $db->get("key1"), "value1", "Assignment still works" );
$db->put("key1", "value2");
is( $db->get("key1"), "value2", "... and replacement works" );
$db->put("key1", "value222222222222222222222222");
is( $db->get("key1"), "value222222222222222222222222", "We set a value before closing the file" );
##
# Make sure DB still works after closing / opening
##
undef $db;
$db = $dbm_maker->();
is( $db->get("key1"), "value222222222222222222222222", "The value we set is still there after closure" );
##
# Make sure keys are still fetchable after replacing values
# with smaller ones (bug found by John Cardenas, DBM::Deep 0.93)
##
$db->clear();
$db->put("key1", "long value here");
$db->put("key2", "longer value here");
$db->put("key1", "short value");
$db->put("key2", "shorter v");
my $first_key = $db->first_key();
my $next_key = $db->next_key($first_key);
ok(
(($first_key eq "key1") || ($first_key eq "key2")) &&
(($next_key eq "key1") || ($next_key eq "key2")) &&
($first_key ne $next_key)
,"keys() still works if you replace long values with shorter ones"
);
# Test autovivification
$db->{unknown}{bar} = 1;
ok( $db->{unknown}, 'Autovivified hash exists' );
is( reftype($db->{unknown}), 'HASH', "... and it's a HASH" );
cmp_ok( $db->{unknown}{bar}, '==', 1, 'And the value stored is there' );
# Test failures
throws_ok {
$db->fetch();
} qr/Cannot use an undefined hash key/, "FETCH fails on an undefined key";
throws_ok {
$db->fetch(undef);
} qr/Cannot use an undefined hash key/, "FETCH fails on an undefined key";
throws_ok {
$db->store();
} qr/Cannot use an undefined hash key/, "STORE fails on an undefined key";
throws_ok {
$db->store(undef, undef);
} qr/Cannot use an undefined hash key/, "STORE fails on an undefined key";
throws_ok {
$db->delete();
} qr/Cannot use an undefined hash key/, "DELETE fails on an undefined key";
throws_ok {
$db->delete(undef);
} qr/Cannot use an undefined hash key/, "DELETE fails on an undefined key";
throws_ok {
$db->exists();
} qr/Cannot use an undefined hash key/, "EXISTS fails on an undefined key";
throws_ok {
$db->exists(undef);
} qr/Cannot use an undefined hash key/, "EXISTS fails on an undefined key";
}
{
# RT# 50541 (reported by Peter Scott)
# clear() leaves one key unless there's only one
my $dbm_factory = new_dbm();
while ( my $dbm_maker = $dbm_factory->() ) {
my $db = $dbm_maker->();
$db->{block} = { };
$db->{critical} = { };
$db->{minor} = { };
cmp_ok( scalar(keys( %$db )), '==', 3, "Have 3 keys" );
$db->clear;
cmp_ok( scalar(keys( %$db )), '==', 0, "clear clears everything" );
}
}
done_testing;
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