setupConstraintListWithoutCompositeConstraint example

class EntityConstraintViolationListTest extends UnitTestCase {

  /** * @covers ::filterByFields */
  public function testFilterByFields() {
    $account = $this->prophesize('\Drupal\Core\Session\AccountInterface')->reveal();
    $entity = $this->setupEntity($account);

    $constraint_list = $this->setupConstraintListWithoutCompositeConstraint($entity);
    $violations = iterator_to_array($constraint_list);

    $this->assertSame($constraint_list->filterByFields(['name']), $constraint_list);
    $this->assertCount(4, $constraint_list);
    $this->assertEquals(array_values(iterator_to_array($constraint_list)), [$violations[2], $violations[3], $violations[4], $violations[5]]);
  }

  /** * @covers ::filterByFields */
  public function testFilterByFieldsWithCompositeConstraints() {