--- /dev/null
+<?php
+
+namespace Drupal\Tests\telephone\Kernel;
+
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\FieldItemInterface;
+use Drupal\entity_test\Entity\EntityTest;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\Tests\field\Kernel\FieldKernelTestBase;
+use Drupal\field\Entity\FieldStorageConfig;
+
+/**
+ * Tests the new entity API for the telephone field type.
+ *
+ * @group telephone
+ */
+class TelephoneItemTest extends FieldKernelTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['telephone'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ // Create a telephone field storage and field for validation.
+ FieldStorageConfig::create([
+ 'field_name' => 'field_test',
+ 'entity_type' => 'entity_test',
+ 'type' => 'telephone',
+ ])->save();
+ FieldConfig::create([
+ 'entity_type' => 'entity_test',
+ 'field_name' => 'field_test',
+ 'bundle' => 'entity_test',
+ ])->save();
+ }
+
+ /**
+ * Tests using entity fields of the telephone field type.
+ */
+ public function testTestItem() {
+ // Verify entity creation.
+ $entity = EntityTest::create();
+ $value = '+0123456789';
+ $entity->field_test = $value;
+ $entity->name->value = $this->randomMachineName();
+ $entity->save();
+
+ // Verify entity has been created properly.
+ $id = $entity->id();
+ $entity = EntityTest::load($id);
+ $this->assertTrue($entity->field_test instanceof FieldItemListInterface, 'Field implements interface.');
+ $this->assertTrue($entity->field_test[0] instanceof FieldItemInterface, 'Field item implements interface.');
+ $this->assertEqual($entity->field_test->value, $value);
+ $this->assertEqual($entity->field_test[0]->value, $value);
+
+ // Verify changing the field value.
+ $new_value = '+41' . rand(1000000, 9999999);
+ $entity->field_test->value = $new_value;
+ $this->assertEqual($entity->field_test->value, $new_value);
+
+ // Read changed entity and assert changed values.
+ $entity->save();
+ $entity = EntityTest::load($id);
+ $this->assertEqual($entity->field_test->value, $new_value);
+
+ // Test sample item generation.
+ $entity = EntityTest::create();
+ $entity->field_test->generateSampleItems();
+ $this->entityValidateAndSave($entity);
+ }
+
+}