--- /dev/null
+<?php
+
+namespace Drupal\Tests\field\Kernel;
+
+/**
+ * Tests field validation.
+ *
+ * @group field
+ */
+class FieldValidationTest extends FieldKernelTestBase {
+
+ /**
+ * @var string
+ */
+ private $entityType;
+
+ /**
+ * @var string
+ */
+ private $bundle;
+
+ /**
+ * @var \Drupal\Core\Entity\EntityInterface
+ */
+ private $entity;
+
+ protected function setUp() {
+ parent::setUp();
+
+ // Create a field and storage of type 'test_field', on the 'entity_test'
+ // entity type.
+ $this->entityType = 'entity_test';
+ $this->bundle = 'entity_test';
+ $this->createFieldWithStorage('', $this->entityType, $this->bundle);
+
+ // Create an 'entity_test' entity.
+ $this->entity = entity_create($this->entityType, [
+ 'type' => $this->bundle,
+ ]);
+ }
+
+ /**
+ * Tests that the number of values is validated against the field cardinality.
+ */
+ public function testCardinalityConstraint() {
+ $cardinality = $this->fieldTestData->field_storage->getCardinality();
+ $entity = $this->entity;
+
+ for ($delta = 0; $delta < $cardinality + 1; $delta++) {
+ $entity->{$this->fieldTestData->field_name}[] = ['value' => 1];
+ }
+
+ // Validate the field.
+ $violations = $entity->{$this->fieldTestData->field_name}->validate();
+
+ // Check that the expected constraint violations are reported.
+ $this->assertEqual(count($violations), 1);
+ $this->assertEqual($violations[0]->getPropertyPath(), '');
+ $this->assertEqual($violations[0]->getMessage(), t('%name: this field cannot hold more than @count values.', ['%name' => $this->fieldTestData->field->getLabel(), '@count' => $cardinality]));
+ }
+
+ /**
+ * Tests that constraints defined by the field type are validated.
+ */
+ public function testFieldConstraints() {
+ $cardinality = $this->fieldTestData->field_storage->getCardinality();
+ $entity = $this->entity;
+
+ // The test is only valid if the field cardinality is greater than 2.
+ $this->assertTrue($cardinality >= 2);
+
+ // Set up values for the field.
+ $expected_violations = [];
+ for ($delta = 0; $delta < $cardinality; $delta++) {
+ // All deltas except '1' have incorrect values.
+ if ($delta == 1) {
+ $value = 1;
+ }
+ else {
+ $value = -1;
+ $expected_violations[$delta . '.value'][] = t('%name does not accept the value -1.', ['%name' => $this->fieldTestData->field->getLabel()]);
+ }
+ $entity->{$this->fieldTestData->field_name}[] = $value;
+ }
+
+ // Validate the field.
+ $violations = $entity->{$this->fieldTestData->field_name}->validate();
+
+ // Check that the expected constraint violations are reported.
+ $violations_by_path = [];
+ foreach ($violations as $violation) {
+ $violations_by_path[$violation->getPropertyPath()][] = $violation->getMessage();
+ }
+ $this->assertEqual($violations_by_path, $expected_violations);
+ }
+
+}