function CronQueueTest::testExceptions

Tests that exceptions thrown by workers are handled properly.

File

core/modules/system/tests/src/Kernel/System/CronQueueTest.php, line 53

Class

CronQueueTest

Tests the Cron Queue runner.

Namespace

Code

public function testExceptions() {
    // Get the queue to test the normal Exception.
    $queue = $this->container
        ->get('queue')
        ->get('cron_queue_test_exception');
    // Enqueue an item for processing.
    $queue->createItem([
        $this->randomMachineName() => $this->randomMachineName(),
    ]);
    // Run cron; the worker for this queue should throw an exception and handle
    // it.
    $this->cron
        ->run();
    $this->assertEqual(\Drupal::state()->get('cron_queue_test_exception'), 1);
    // The item should be left in the queue.
    $this->assertEqual($queue->numberOfItems(), 1, 'Failing item still in the queue after throwing an exception.');
    // Expire the queue item manually. system_cron() relies in REQUEST_TIME to
    // find queue items whose expire field needs to be reset to 0. This is a
    // Kernel test, so REQUEST_TIME won't change when cron runs.
    // @see system_cron()
    // @see \Drupal\Core\Cron::processQueues()
    $this->connection
        ->update('queue')
        ->condition('name', 'cron_queue_test_exception')
        ->fields([
        'expire' => REQUEST_TIME - 1,
    ])
        ->execute();
    $this->cron
        ->run();
    $this->assertEqual(\Drupal::state()->get('cron_queue_test_exception'), 2);
    $this->assertEqual($queue->numberOfItems(), 0, 'Item was processed and removed from the queue.');
    // Get the queue to test the specific SuspendQueueException.
    $queue = $this->container
        ->get('queue')
        ->get('cron_queue_test_broken_queue');
    // Enqueue several item for processing.
    $queue->createItem('process');
    $queue->createItem('crash');
    $queue->createItem('ignored');
    // Run cron; the worker for this queue should process as far as the crashing
    // item.
    $this->cron
        ->run();
    // Only one item should have been processed.
    $this->assertEqual($queue->numberOfItems(), 2, 'Failing queue stopped processing at the failing item.');
    // Check the items remaining in the queue. The item that throws the
    // exception gets released by cron, so we can claim it again to check it.
    $item = $queue->claimItem();
    $this->assertEqual($item->data, 'crash', 'Failing item remains in the queue.');
    $item = $queue->claimItem();
    $this->assertEqual($item->data, 'ignored', 'Item beyond the failing item remains in the queue.');
    // Test the requeueing functionality.
    $queue = $this->container
        ->get('queue')
        ->get('cron_queue_test_requeue_exception');
    $queue->createItem([]);
    $this->cron
        ->run();
    $this->assertEquals(2, \Drupal::state()->get('cron_queue_test_requeue_exception'));
    $this->assertEquals(0, $queue->numberOfItems());
}