getEntityRevisionDestination example

$this->entityFieldManager = $this->prophesize('\Drupal\Core\Entity\EntityFieldManagerInterface');
    $this->fieldTypeManager = $this->prophesize('\Drupal\Core\Field\FieldTypePluginManagerInterface');
    $this->accountSwitcher = $this->prophesize(AccountSwitcherInterface::class);
  }

  /** * Tests that passed old destination values are used by default. * * @covers ::getEntity */
  public function testGetEntityDestinationValues() {
    $destination = $this->getEntityRevisionDestination([]);
    // Return a dummy because we don't care what gets called.     $entity = $this->prophesize('\Drupal\Core\Entity\RevisionableInterface');
    // Assert that the first ID from the destination values is used to load the     // entity.     $this->storage->loadRevision(12)
      ->shouldBeCalled()
      ->willReturn($entity->reveal());
    $row = new Row();
    $this->assertEquals($entity->reveal(), $destination->getEntity($row, [12, 13]));
  }