public function FieldAttachStorageTest::testFieldAttachSaveEmptyData in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/field/tests/src/Kernel/FieldAttachStorageTest.php \Drupal\Tests\field\Kernel\FieldAttachStorageTest::testFieldAttachSaveEmptyData()

Tests insert and update with empty or NULL fields.

File

core/modules/field/tests/src/Kernel/FieldAttachStorageTest.php, line 147

Class

FieldAttachStorageTest

Tests storage-related Field Attach API functions.

Namespace

Drupal\Tests\field\Kernel

Code

public function testFieldAttachSaveEmptyData() {
  $entity_type = 'entity_test';
  $this
    ->createFieldWithStorage('', $entity_type);
  $entity_init = $this->container
    ->get('entity_type.manager')
    ->getStorage($entity_type)
    ->create([
    'id' => 1,
  ]);

  // Insert: Field is NULL.
  $entity = clone $entity_init;
  $entity->{$this->fieldTestData->field_name} = NULL;
  $entity
    ->enforceIsNew();
  $entity = $this
    ->entitySaveReload($entity);
  $this
    ->assertTrue($entity->{$this->fieldTestData->field_name}
    ->isEmpty(), 'Insert: NULL field results in no value saved');

  // All saves after this point should be updates, not inserts.
  $entity_init
    ->enforceIsNew(FALSE);

  // Add some real data.
  $entity = clone $entity_init;
  $values = $this
    ->_generateTestFieldValues(1);
  $entity->{$this->fieldTestData->field_name} = $values;
  $entity = $this
    ->entitySaveReload($entity);
  $this
    ->assertEquals($values, $entity->{$this->fieldTestData->field_name}
    ->getValue(), 'Field data saved');

  // Update: Field is NULL. Data should be wiped.
  $entity = clone $entity_init;
  $entity->{$this->fieldTestData->field_name} = NULL;
  $entity = $this
    ->entitySaveReload($entity);
  $this
    ->assertTrue($entity->{$this->fieldTestData->field_name}
    ->isEmpty(), 'Update: NULL field removes existing values');

  // Re-add some data.
  $entity = clone $entity_init;
  $values = $this
    ->_generateTestFieldValues(1);
  $entity->{$this->fieldTestData->field_name} = $values;
  $entity = $this
    ->entitySaveReload($entity);
  $this
    ->assertEquals($values, $entity->{$this->fieldTestData->field_name}
    ->getValue(), 'Field data saved');

  // Update: Field is empty array. Data should be wiped.
  $entity = clone $entity_init;
  $entity->{$this->fieldTestData->field_name} = [];
  $entity = $this
    ->entitySaveReload($entity);
  $this
    ->assertTrue($entity->{$this->fieldTestData->field_name}
    ->isEmpty(), 'Update: empty array removes existing values');
}