/**
* Generates an instance of the cache store that can be used for testing.
*
* @param cache_definition $definition
* @return cachestore_memcached|false
*/
public static function initialise_test_instance(cache_definition $definition)
{
if (!self::are_requirements_met()) {
return false;
}
$config = get_config('cachestore_memcached');
if (empty($config->testservers)) {
return false;
}
$configuration = array();
$configuration['servers'] = explode("\n", $config->testservers);
if (!empty($config->testcompression)) {
$configuration['compression'] = $config->testcompression;
}
if (!empty($config->testserialiser)) {
$configuration['serialiser'] = $config->testserialiser;
}
if (!empty($config->testprefix)) {
$configuration['prefix'] = $config->testprefix;
}
if (!empty($config->testhash)) {
$configuration['hash'] = $config->testhash;
}
if (!empty($config->testbufferwrites)) {
$configuration['bufferwrites'] = $config->testbufferwrites;
}
if (!empty($config->testclustered)) {
$configuration['clustered'] = $config->testclustered;
}
if (!empty($config->testsetservers)) {
$configuration['setservers'] = explode("\n", $config->testsetservers);
}
if (!empty($config->testname)) {
$name = $config->testname;
} else {
$name = 'Test memcached';
}
$store = new cachestore_memcached($name, $configuration);
// If store is ready then only initialise.
if ($store->is_ready()) {
$store->initialise($definition);
}
return $store;
}
/**
* Tests the valid keys to ensure they work.
*/
public function test_valid_keys()
{
if (!cachestore_memcached::are_requirements_met() || !defined('TEST_CACHESTORE_MEMCACHED_TESTSERVERS')) {
$this->markTestSkipped('Could not test cachestore_memcached. Requirements are not met.');
}
$this->resetAfterTest(true);
$definition = cache_definition::load_adhoc(cache_store::MODE_APPLICATION, 'cachestore_memcached', 'phpunit_test');
$instance = new cachestore_memcached('Memcached Test', cachestore_memcached::unit_test_configuration());
if (!$instance->is_ready()) {
// Something prevented memcached store to be inited (extension, TEST_CACHESTORE_MEMCACHED_TESTSERVERS...).
$this->markTestSkipped();
}
$instance->initialise($definition);
$keys = array('abc', 'ABC', '123', 'aB1', '1aB', 'a-1', '1-a', '-a1', 'a1-', 'a_1', '1_a', '_a1', 'a1_');
// Set some keys.
foreach ($keys as $key) {
$this->assertTrue($instance->set($key, $key), "Failed to set key `{$key}`");
}
// Get some keys.
foreach ($keys as $key) {
$this->assertEquals($key, $instance->get($key), "Failed to get key `{$key}`");
}
// Try get many.
$values = $instance->get_many($keys);
foreach ($values as $key => $value) {
$this->assertEquals($key, $value);
}
// Reset a key.
$this->assertTrue($instance->set($keys[0], 'New'), "Failed to reset key `{$key}`");
$this->assertEquals('New', $instance->get($keys[0]), "Failed to get reset key `{$key}`");
// Delete and check that we can't retrieve.
foreach ($keys as $key) {
$this->assertTrue($instance->delete($key), "Failed to delete key `{$key}`");
$this->assertFalse($instance->get($key), "Retrieved deleted key `{$key}`");
}
// Try set many, and check that count is correct.
$many = array();
foreach ($keys as $key) {
$many[] = array('key' => $key, 'value' => $key);
}
$returncount = $instance->set_many($many);
$this->assertEquals(count($many), $returncount, 'Set many count didn\'t match');
// Check keys retrieved with get_many.
$values = $instance->get_many($keys);
foreach ($keys as $key) {
$this->assertTrue(isset($values[$key]), "Failed to get_many key `{$key}`");
$this->assertEquals($key, $values[$key], "Failed to match get_many key `{$key}`");
}
// Delete many, make sure count matches.
$returncount = $instance->delete_many($keys);
$this->assertEquals(count($many), $returncount, 'Delete many count didn\'t match');
// Check that each key was deleted.
foreach ($keys as $key) {
$this->assertFalse($instance->get($key), "Retrieved many deleted key `{$key}`");
}
// Set the keys again.
$returncount = $instance->set_many($many);
$this->assertEquals(count($many), $returncount, 'Set many count didn\'t match');
// Purge.
$this->assertTrue($instance->purge(), 'Failure to purge');
// Delete and check that we can't retrieve.
foreach ($keys as $key) {
$this->assertFalse($instance->get($key), "Retrieved purged key `{$key}`");
}
}