Tests the rendering of blocks.
protected function loadTests() {
$entities = $this->controller
->load(array(
'stark.test_block',
));
$entity = reset($entities);
$this
->assertTrue($entity instanceof Block, 'The loaded entity is a Block.');
// Verify several properties of the block.
$this
->assertEqual($entity
->get('region'), '-1');
$this
->assertTrue($entity
->get('status'));
$this
->assertEqual($entity
->get('theme'), 'stark');
$this
->assertTrue($entity
->uuid());
}