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<?php
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// $Id: memcachetests.php,v 1.4.2.1 2007/05/11 06:12:17 robertDouglass Exp $
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/*
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* Some unit tests used while developing. You may find them instructional.
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* Place the memcachetests.php file in the root Drupal directory. Start memcache servers
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* on localhost:11211 and localhost:11212
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*/
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// dummy implementations to keep memcache.inc happy
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define('WATCHDOG_ERROR', 2);
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function variable_get($name, $default) {
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return $default;
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}
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function watchdog($type, $message, $severity = WATCHDOG_NOTICE, $link = NULL) {
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}
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include_once './includes/memcache.inc';
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print "<h1>Memcache configuration details</h1>";
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print "<ul><li>memcache.allow_failover=". ini_get('memcache.allow_failover'). "</li>";
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print "<li>memcache.max_failover_attempts=". ini_get('memcache.max_failover_attempts'). "</li>";
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print "<li>memcache.chunk_size=". ini_get('memcache.chunk_size'). "</li>";
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print "<li>memcache.default_port=". ini_get('memcache.default_port'). "</li>";
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print "</ul>";
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global $conf;
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// by not defining any $conf for memcache we're essentially saying "give me localhost:11211"
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// and only the 'default' bin will be active.
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##############
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// Begin Tests
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##############
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// Test 1. Connect to server and retrieve stats
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###############################################
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printHeader();
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$mc = dmemcache_object();
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formatStats($mc->getStats());
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$mc->close();
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unset($mc);
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// Test 2. Set a number of keys and retrieve their values
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#########################################################
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printHeader();
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$mc = dmemcache_object();
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$keys = array('a', time(), 'http://www.robshouse.net/home/page?q=xyz&p=x', 'What about space?');
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print '<ol>';
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foreach ($keys as $key) {
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testKeyValue($mc, $key, 'Hi Robert');
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}
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print '</ol>';
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$mc->close();
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unset($mc);
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// Test 3. Set a number of PROBLEMATIC keys and retrieve their values
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#####################################################################
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printHeader();
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$mc = dmemcache_object();
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print '<ol>';
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$key = ' ';
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testKeyValue($mc, $key, 'Hi Dude');
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$key = "\n";
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testKeyValue($mc, $key, 'Hi Dude 2');
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print '<li><em>space and line break different?</em>='. $mc->get(' ').'</li>';
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print '</ol>';
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$mc->close();
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unset($mc);
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// Test 4. Test flushing the $mc object from dmemcache_object
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#############################################################
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printHeader();
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$mc = dmemcache_object();
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formatStats($mc->getStats());
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unset($conf['memcache']);
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$conf['memcache'][] = array(
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'#servers' => array('localhost:11212'),
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'#bins' => array('default'),
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);
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$mc->close();
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unset($mc);
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$mc = dmemcache_object('default', TRUE);
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formatStats($mc->getStats());
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$mc->close();
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unset($mc);
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// Test 5. Confirm that space and line break are treated as the same character
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##############################################################################
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printHeader();
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$mc = dmemcache_object();
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$mc->set("\n", "This is a new line", FALSE, 5);
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print '<ol>';
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print '<li>'. $mc->get("\n"). '</li>';
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print '<li>'. $mc->get(" "). '</li>';
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print '</ol>';
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$mc->close();
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unset($mc);
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// Test 6. Try out dmemcache_set and dmemcache_get
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##################################################
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printHeader();
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$keys = array('a', time(), 'http://www.robshouse.net/home/page?q=xyz&p=x', 'What about space?');
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print '<ol>';
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foreach ($keys as $key) {
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dtestKeyValue($key, 'Hi Robert 2');
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}
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print '</ol>';
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// Test 7. See if newline and space are identical using dmemcache
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// conclusion: the urlencode() fixes this problem.
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#################################################################
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printHeader();
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dmemcache_set("\n", "This is a new line");
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print '<ol>';
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print '<li>'. dmemcache_get("\n"). '</li>';
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print '<li>'. dmemcache_get(" "). '</li>';
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print '</ol>';
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// Test 8. See if addServer actually pools the server resources
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###############################################################
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printHeader();
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// Set up $conf so that both available servers map to default
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unset($conf['memcache']);
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$conf['memcache'][] = array(
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'#servers' => array('localhost:11211', 'localhost:11212'),
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'#bins' => array('default'),
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);
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// clear the $mc object
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dmemcache_object('default', TRUE);
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// make independent connections so we can display stats. These will be used in the next 3 tests.
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$mc1 = new Memcache;
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$mc1->connect('localhost', 11211);
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$mc2 = new Memcache;
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$mc2->connect('localhost', 11212);
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$last_key = $last_value = '';
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$time = microtime();
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for ($i = 1; $i < 10001; $i++) {
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$last_key = $time.$i. 'key';
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$last_value = 'Some very random thoughts about things in general'. $time;
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dmemcache_set($last_key, $last_value, FALSE, 0);
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if ($i % 1000 == 1) {
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formatStats2($mc1, $mc2);
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flush();
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}
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}
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print "</table>";
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// Test 9. Try using flush to clear servers
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// Conclusion: It probably works, except that it doesn't actuall clear the memory.
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// It only sets it as invalid so that it gets overwritten.
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###########################################
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printHeader();
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formatStats2($mc1, $mc2, TRUE);
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print "</table>";
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dmemcache_flush();
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formatStats2($mc1, $mc2, TRUE);
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print "</table>";
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// Test 10. See what the extended stats offer
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#############################################
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printHeader();
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print "<pre>";
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$types = array('reset', 'malloc', 'maps', 'slabs', 'items', 'sizes');
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foreach ($types as $type) {
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print "<h2>$type</h2>";
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print "<h3>Server 1</h3>";
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print_r($mc1->getExtendedStats($type));
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print "<h3>Server 2</h3>";
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print_r($mc2->getExtendedStats($type));
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}
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print "</pre>";
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// done with mc1 and mc2
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$mc1->close();
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$mc2->close();
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unset($mc1);
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unset($mc2);
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// Test 11. Test delete.
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########################
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printHeader();
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dmemcache_set('delete me', 'Goodbye world');
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print "<h2>". dmemcache_get('delete me'). "</h2>";
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dmemcache_delete('delete me');
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print "<h2>Nothing here ---->". dmemcache_get('delete me'). "<--</h2>";
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// Test 12. Save things to different bins
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#########################################
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printHeader();
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$mc1 = new Memcache;
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$mc1->connect('localhost', 11211);
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$mc2 = new Memcache;
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$mc2->connect('localhost', 11212);
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// Set up two clusters with four bins
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unset($conf['memcache']);
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$conf['memcache'][] = array(
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'#servers' => array('localhost:11211'),
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'#bins' => array('default', 'antwerp'),
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);
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$conf['memcache'][] = array(
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'#servers' => array('localhost:11212'),
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'#bins' => array('vancouver', 'barcelona'),
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);
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// flush the cluster cache
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dmemcache_object('', TRUE);
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$first = TRUE;
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print "<h3>Bin: default</h3>";
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$last_key = $last_value = '';
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$time = microtime();
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for ($i = 1; $i < 10001; $i++) {
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$last_key = $time.$i. 'key';
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$last_value = 'default '. $i;
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dmemcache_set($last_key, $last_value, 20, 'default');
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if ($i % 1000 == 1) {
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$cluster = dmemcache_object('default');
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print_r($cluster);
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formatStats2($mc1, $mc2, $first);
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$first = FALSE;
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flush();
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$keyin_keyout[] = array('orig' => $last_value, 'cache' => dmemcache_get($last_key, 'default'));
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}
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}
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print "</table>";
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print "<h4>Values for default</h4>";
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print '<table border="1"><tr><th>Original</th><th>Cached</th></tr>';
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foreach ($keyin_keyout as $values) {
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print "<tr><td>". $values['orig']. "</td><td>". $values['cache']. "</td></tr>";
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}
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print "</table>";
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print "<h3>Bin: vancouver</h3>";
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$first = TRUE;
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$keyin_keyout = array();
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$last_key = $last_value = '';
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$time = microtime();
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for ($i = 1; $i < 10001; $i++) {
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$last_key = $time.$i. 'key';
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$last_value = 'vancouver '. $i;
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dmemcache_set($last_key, $last_value, 20, 'vancouver');
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if ($i % 1000 == 1) {
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$cluster = dmemcache_object('vancouver');
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print_r($cluster);
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formatStats2($mc1, $mc2, $first);
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$first = FALSE;
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flush();
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$keyin_keyout[] = array('orig' => $last_value, 'cache' => dmemcache_get($last_key, 'vancouver'));
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}
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}
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print "</table>";
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print "<h4>Values for vancouver</h4>";
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print '<table border="1"><tr><th>Original</th><th>Cached</th></tr>';
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foreach ($keyin_keyout as $values) {
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print "<tr><td>". $values['orig']. "</td><td>". $values['cache']. "</td></tr>";
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}
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print "</table>";
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print "<h3>Bin: barcelona</h3>";
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$first = TRUE;
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$keyin_keyout = array();
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$last_key = $last_value = '';
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$time = microtime();
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for ($i = 1; $i < 10001; $i++) {
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$last_key = $time.$i. 'key';
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$last_value = 'barcelona '. $i;
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dmemcache_set($last_key, $last_value, 20, 'barcelona');
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if ($i % 1000 == 1) {
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$cluster = dmemcache_object('barcelona');
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print_r($cluster);
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formatStats2($mc1, $mc2, $first);
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$first = FALSE;
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flush();
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$keyin_keyout[] = array('orig' => $last_value, 'cache' => dmemcache_get($last_key, 'barcelona'));
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}
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}
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print "</table>";
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print "<h4>Values for barcelona</h4>";
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print '<table border="1"><tr><th>Original</th><th>Cached</th></tr>';
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foreach ($keyin_keyout as $values) {
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print "<tr><td>". $values['orig']. "</td><td>". $values['cache']. "</td></tr>";
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}
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print "</table>";
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print "<h3>Bin: antwerp</h3>";
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$first = TRUE;
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$keyin_keyout = array();
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$last_key = $last_value = '';
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$time = microtime();
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for ($i = 1; $i < 10001; $i++) {
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$last_key = $time.$i. 'key';
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$last_value = 'antwerp '. $i;
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dmemcache_set($last_key, $last_value, 20, 'antwerp');
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if ($i % 1000 == 1) {
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$cluster = dmemcache_object('antwerp');
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print_r($cluster);
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formatStats2($mc1, $mc2, $first);
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$first = FALSE;
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flush();
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$keyin_keyout[] = array('orig' => $last_value, 'cache' => dmemcache_get($last_key, 'antwerp'));
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}
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}
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print "</table>";
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print "<h4>Values for antwerp</h4>";
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print '<table border="1"><tr><th>Original</th><th>Cached</th></tr>';
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foreach ($keyin_keyout as $values) {
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print "<tr><td>". $values['orig']. "</td><td>". $values['cache']. "</td></tr>";
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}
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print "</table>";
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$mc1->close();
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$mc2->close();
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unset($mc1);
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unset($mc2);
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// Test 13. View the globaldebug messages
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#########################################
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printHeader();
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###################
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// Helper functions
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###################
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function testKeyValue($mc, $key, $value) {
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$mc->set($key, $value, FALSE, 5);
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printKeyValue($key, $mc->get($key));
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}
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function dtestKeyValue($key, $value, $bin = 'default') {
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dmemcache_set($key, $value, 5, $bin);
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printKeyValue($key, dmemcache_get($key));
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}
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function printKeyValue($key, $value) {
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print '<li>'. $key. '='. $value. '</li>';
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}
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function formatStats($stats = array()) {
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print '<ul>';
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foreach ($stats as $name => $value) {
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print '<li>'. $name. '='. $value. '</li>';
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}
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print '</ul>';
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}
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function printHeader() {
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static $count = 1;
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print "<a name='$count'><h2>Test ". $count++. "</h2></a>";
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}
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function formatStats2($mc1, $mc2, $flush = FALSE) {
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static $count, $first;
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$stats1 = $mc1->getStats();
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$stats2 = $mc2->getStats();
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if ($flush) {
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unset($first);
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}
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if (!isset($first)) {
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$count = 1;
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$first = FALSE;
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print "<table border='1'><tr><th> </th><th>Server 1</th><th>Server 2</th></tr>";
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}
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print "<tr><td>$count</td><td>". $stats1['bytes']. "</td><td>". $stats2['bytes']. "</td></tr>";
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$count++;
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}
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?>
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