Added assert to verify no lock data is stored in the APCu storage whe…

…n all the locks are available

includes/apc_storage_lock.class.inc

@@ -100,7 +100,7 @@ class ApcStorageLock {
 
     if (apcu_exists($this->key)) {
       // Try to extend the expiration of an already acquired lock.
-      if (!apcu_store($this->key, array('expire' => $expire), 0)) {
+      if (!apcu_store($this->key, array('expire' => $expire))) {
         // The lock was broken.
         apcu_delete($this->key);
 
@@ -118,12 +118,12 @@ class ApcStorageLock {
 
       // We always want to do this code at least once.
       do {
-        $success = apcu_store($this->key, array('expire' => $expire), 0);
+        $success = apcu_store($this->key, array('expire' => $expire));
 
         if (!$success) {
           // If this is our first pass through the loop, then $retry is FALSE.
           // In this case, the insert must have failed meaning some other
-          // request  acquired the lock but did not release it.
+          // request acquired the lock but did not release it.
           // We decide whether to retry by checking
           // ApcStorageLock::maybeAvailable(), since this will break the lock in
           // case it is expired.

modules/apc_storage_admin/apc_storage_admin.module

@@ -111,7 +111,7 @@ function apc_storage_admin_settings($form, &$form_state): array {
 
   $form['#config'] = 'apc_storage.admin';
 
-  $description = t('User accounts with the !permission permission will be see which data is stored in the APCu storage.',
+  $description = t('User accounts with the !permission permission will see which data is stored in the APCu storage.',
     array(
     '!permission' => l(t('Access APC Storage reports'), 'admin/config/people/permissions', array('fragment' => 'module-apc-storage-admin')),
     )

tests/apc_storage_lock.test

@@ -159,13 +159,27 @@ class ApcStorageLockTestCase extends ApcStorageBaseTestCase {
       $this->pass(format_string('Tests will be halted for @delay seconds.', array('@delay' => $delay)));
       sleep($delay);
 
+      $count = 0;
+
       foreach ($locks as $name => $lock) {
         $message = format_string(
           'The @name lock is available after further @delay seconds.',
           array('@name' => $name, '@delay' => $delay)
         );
 
-        $this->assertTrue($lock->maybeAvailable(), $message);
+        if ($this->assertTrue($lock->maybeAvailable(), $message)) {
+          $count++;
+        }
+      }
+
+      if ($count == count($this->lockNames)) {
+        $this->assertNoApcuKeysByPrefix(
+          'apc_storage_lock::[a-zA-Z0-9-_]+::',
+          array(
+            'message' => 'All locks are available and no lock data is stored in the APCu storage.',
+            'regexp' => TRUE
+          )
+        );
       }
     }
   }
@@ -183,7 +197,7 @@ class ApcStorageLockTestCase extends ApcStorageBaseTestCase {
     }
 
     if ($this->assertTrue($this->initLocks(), 'All the locks have been created.')) {
-      $max_timeout = $this->acquireLocks(2.0, 4.0);
+      $max_timeout = $this->acquireLocks(2.0, 4.0) + 1.0;
 
       $lock = ApcStorageLock::get($this->lockNames[0]);
       $message = format_string(

tests/apc_storage_queue.test

@@ -114,7 +114,7 @@ class ApcStorageQueueTestCase extends ApcStorageBaseTestCase {
     if ($this->initQueues()) {
       foreach ($this->queues as $name => $data) {
         $message = format_string(
-          'Data for the @queue queue has been stored on the APCu storage.',
+          'Data for the @queue queue has been stored in the APCu storage.',
           array('@queue' => $name),
         );