Koha/t/Cache.t

145 lines
4.2 KiB
Perl

#!/usr/bin/perl
# Tests Koha::Cache and whichever type of cache is enabled (through Koha::Cache)
use strict;
use warnings;
use Test::More tests => 29;
my $destructorcount = 0;
BEGIN {
use_ok('Koha::Cache');
use_ok('Koha::Cache::Object');
use_ok('C4::Context');
}
SKIP: {
my $cache = Koha::Cache->new();
skip "Cache not enabled", 25
unless ( Koha::Cache->is_cache_active() && defined $cache );
# test fetching an item that isnt in the cache
is( $cache->get_from_cache("not in here"),
undef, "fetching item NOT in cache" );
# test expiry time in cache
$cache->set_in_cache( "timeout", "I AM DATA", 1 ); # expiry time of 1 second
sleep 2;
is( $cache->get_from_cache("timeout"),
undef, "fetching expired item from cache" );
# test fetching a valid, non expired, item from cache
$cache->set_in_cache( "clear_me", "I AM MORE DATA", 1000 )
; # overly large expiry time, clear below
$cache->set_in_cache( "dont_clear_me", "I AM MORE DATA22", 1000 )
; # overly large expiry time, clear below
is(
$cache->get_from_cache("clear_me"),
"I AM MORE DATA",
"fetching valid item from cache"
);
# test clearing from cache
$cache->clear_from_cache("clear_me");
is( $cache->get_from_cache("clear_me"),
undef, "fetching cleared item from cache" );
is(
$cache->get_from_cache("dont_clear_me"),
"I AM MORE DATA22",
"fetching valid item from cache (after clearing another item)"
);
#test flushing from cache
$cache->set_in_cache( "flush_me", "testing 1 data" );
$cache->flush_all;
is( $cache->get_from_cache("flush_me"),
undef, "fetching flushed item from cache" );
is( $cache->get_from_cache("dont_clear_me"),
undef, "fetching flushed item from cache" );
my $constructorcount = 0;
my $myscalar = $cache->create_scalar(
{
'key' => 'myscalar',
'timeout' => 1,
'allowupdate' => 1,
'unset' => 1,
'constructor' => sub { return ++$constructorcount; },
'destructor' => sub { return ++$destructorcount; },
}
);
ok( defined($myscalar), 'Created tied scalar' );
is( $$myscalar, 1, 'Constructor called to first initialize' );
is( $$myscalar, 1, 'Data retrieved from cache' );
sleep 2;
is( $$myscalar, 2, 'Constructor called again when timeout reached' );
$$myscalar = 5;
is( $$myscalar, 5, 'Stored new value to cache' );
is( $constructorcount, 2, 'Constructor not called after storing value' );
undef $myscalar;
is( $cache->get_from_cache("myscalar"),
undef, 'Item removed from cache on destruction' );
my %hash = ( 'key' => 'value' );
my $myhash = $cache->create_hash(
{
'key' => 'myhash',
'timeout' => 1,
'allowupdate' => 1,
'unset' => 1,
'constructor' => sub { return { %hash }; },
}
);
ok(defined $myhash, 'Created tied hash');
is($myhash->{'key'}, 'value', 'Found expected value in hash');
ok(exists $myhash->{'key'}, 'Exists works');
$myhash->{'key2'} = 'surprise';
is($myhash->{'key2'}, 'surprise', 'Setting hash member worked');
$hash{'key2'} = 'nosurprise';
sleep 2;
is($myhash->{'key2'}, 'nosurprise', 'Cache change caught');
my $foundkeys = 0;
foreach my $key (keys %{$myhash}) {
$foundkeys++;
}
is($foundkeys, 2, 'Found expected 2 keys when iterating through hash');
isnt(scalar %{$myhash}, undef, 'scalar knows the hash is not empty');
$hash{'anotherkey'} = 'anothervalue';
sleep 2;
ok(exists $myhash->{'anotherkey'}, 'Cache reset properly');
delete $hash{'anotherkey'};
delete $myhash->{'anotherkey'};
ok(!exists $myhash->{'anotherkey'}, 'Key successfully deleted');
undef %hash;
%{$myhash} = ();
is(scalar %{$myhash}, 0, 'hash cleared');
$hash{'key'} = 'value';
is($myhash->{'key'}, 'value', 'retrieved value after clearing cache');
}
END {
SKIP: {
skip "Cache not enabled", 1
unless ( Koha::Cache->is_cache_active() );
is( $destructorcount, 1, 'Destructor run exactly once' );
}
}