function TempStoreDatabaseTest::testSharedTempStore

Tests the SharedTempStore API.

File

core/tests/Drupal/KernelTests/Core/TempStore/TempStoreDatabaseTest.php, line 64

Class

TempStoreDatabaseTest

Tests the temporary object storage system.

Namespace

Code

public function testSharedTempStore() {
    // Create a key/value collection.
    $database = Database::getConnection();
    $factory = new SharedTempStoreFactory(new KeyValueExpirableFactory(\Drupal::getContainer()), new DatabaseLockBackend($database), $this->container
        ->get('request_stack'));
    $collection = $this->randomMachineName();
    // Create two mock users.
    for ($i = 0; $i <= 1; $i++) {
        $users[$i] = mt_rand(500, 5000000);
        // Storing the SharedTempStore objects in a class member variable causes a
        // fatal exception, because in that situation garbage collection is not
        // triggered until the test class itself is destructed, after tearDown()
        // has deleted the database tables. Store the objects locally instead.
        
        /** @var \Drupal\Core\TempStore\SharedTempStore[] $stores */
        $stores[$i] = $factory->get($collection, $users[$i]);
    }
    $key = $this->randomMachineName();
    // Test that setIfNotExists() succeeds only the first time.
    for ($i = 0; $i <= 1; $i++) {
        // setIfNotExists() should be TRUE the first time (when $i is 0) and
        // FALSE the second time (when $i is 1).
        $this->assertEqual(!$i, $stores[0]->setIfNotExists($key, $this->objects[$i]));
        $metadata = $stores[0]->getMetadata($key);
        $this->assertEqual($users[0], $metadata->getOwnerId());
        $this->assertEquals($this->objects[0], $stores[0]->get($key));
        // Another user should get the same result.
        $metadata = $stores[1]->getMetadata($key);
        $this->assertEqual($users[0], $metadata->getOwnerId());
        $this->assertEquals($this->objects[0], $stores[1]->get($key));
    }
    // Remove the item and try to set it again.
    $stores[0]->delete($key);
    $stores[0]->setIfNotExists($key, $this->objects[1]);
    // This time it should succeed.
    $this->assertEquals($this->objects[1], $stores[0]->get($key));
    // This user can update the object.
    $stores[0]->set($key, $this->objects[2]);
    $this->assertEquals($this->objects[2], $stores[0]->get($key));
    // The object is the same when another user loads it.
    $this->assertEquals($this->objects[2], $stores[1]->get($key));
    // This user should be allowed to get, update, delete.
    $this->assertInstanceOf(\stdClass::class, $stores[0]->getIfOwner($key));
    $this->assertTrue($stores[0]->setIfOwner($key, $this->objects[1]));
    $this->assertTrue($stores[0]->deleteIfOwner($key));
    // Another user can update the object and become the owner.
    $stores[1]->set($key, $this->objects[3]);
    $this->assertEquals($this->objects[3], $stores[0]->get($key));
    $this->assertEquals($this->objects[3], $stores[1]->get($key));
    $metadata = $stores[1]->getMetadata($key);
    $this->assertEqual($users[1], $metadata->getOwnerId());
    // The first user should be informed that the second now owns the data.
    $metadata = $stores[0]->getMetadata($key);
    $this->assertEqual($users[1], $metadata->getOwnerId());
    // The first user should no longer be allowed to get, update, delete.
    $this->assertNull($stores[0]->getIfOwner($key));
    $this->assertFalse($stores[0]->setIfOwner($key, $this->objects[1]));
    $this->assertFalse($stores[0]->deleteIfOwner($key));
    // Now manually expire the item (this is not exposed by the API) and then
    // assert it is no longer accessible.
    $database->update('key_value_expire')
        ->fields([
        'expire' => REQUEST_TIME - 1,
    ])
        ->condition('collection', "tempstore.shared.{$collection}")
        ->condition('name', $key)
        ->execute();
    $this->assertNull($stores[0]->get($key));
    $this->assertNull($stores[1]->get($key));
}