class KeyValueContentEntityStorageTest

class KeyValueContentEntityStorageTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'user',
        'entity_test',
        'keyvalue_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installEntitySchema('user');
    }
    
    /**
     * Tests CRUD operations.
     *
     * @covers \Drupal\Core\Entity\KeyValueStore\KeyValueEntityStorage::hasData
     */
    public function testCRUD() : void {
        $default_langcode = \Drupal::languageManager()->getDefaultLanguage()
            ->getId();
        $storage = \Drupal::entityTypeManager()->getStorage('entity_test_label');
        $this->assertFalse($storage->hasData());
        // Verify default properties on a newly created empty entity.
        $empty = EntityTestLabel::create();
        $this->assertNull($empty->id->value);
        $this->assertNull($empty->name->value);
        $this->assertNotEmpty($empty->uuid->value);
        $this->assertSame($default_langcode, $empty->langcode->value);
        // Verify ConfigEntity properties/methods on the newly created empty entity.
        $this->assertTrue($empty->isNew());
        $this->assertSame('entity_test_label', $empty->bundle());
        $this->assertNull($empty->id());
        $this->assertNotEmpty($empty->uuid());
        $this->assertNull($empty->label());
        // Verify Entity properties/methods on the newly created empty entity.
        $this->assertSame('entity_test_label', $empty->getEntityTypeId());
        // The URI can only be checked after saving.
        try {
            $empty->toUrl();
            $this->fail('EntityMalformedException was thrown.');
        } catch (EntityMalformedException $e) {
            // Expected exception; just continue testing.
        }
        // Verify that an empty entity cannot be saved.
        try {
            $empty->save();
            $this->fail('EntityMalformedException was thrown.');
        } catch (EntityMalformedException $e) {
            // Expected exception; just continue testing.
        }
        // Verify that an entity with an empty ID string is considered empty, too.
        $empty_id = EntityTestLabel::create([
            'id' => '',
        ]);
        $this->assertTrue($empty_id->isNew());
        try {
            $empty_id->save();
            $this->fail('EntityMalformedException was thrown.');
        } catch (EntityMalformedException $e) {
            // Expected exception; just continue testing.
        }
        // Verify properties on a newly created entity.
        $entity_test = EntityTestLabel::create($expected = [
            'id' => $this->randomMachineName(),
            'name' => $this->randomString(),
        ]);
        $this->assertSame($expected['id'], $entity_test->id->value);
        $this->assertNotEmpty($entity_test->uuid->value);
        $this->assertNotEquals($empty->uuid->value, $entity_test->uuid->value);
        $this->assertSame($expected['name'], $entity_test->name->value);
        $this->assertSame($default_langcode, $entity_test->langcode->value);
        // Verify methods on the newly created entity.
        $this->assertTrue($entity_test->isNew());
        $this->assertSame($expected['id'], $entity_test->id());
        $this->assertNotEmpty($entity_test->uuid());
        $expected['uuid'] = $entity_test->uuid();
        $this->assertSame($expected['name'], $entity_test->label());
        // Verify that the entity can be saved.
        try {
            $status = $entity_test->save();
        } catch (EntityMalformedException $e) {
            $this->fail('EntityMalformedException was not thrown.');
        }
        // Verify that hasData() returns the expected result.
        $this->assertTrue($storage->hasData());
        // Verify that the correct status is returned and properties did not change.
        $this->assertSame(SAVED_NEW, $status);
        $this->assertSame($expected['id'], $entity_test->id());
        $this->assertSame($expected['uuid'], $entity_test->uuid());
        $this->assertSame($expected['name'], $entity_test->label());
        $this->assertFalse($entity_test->isNew());
        // Save again, and verify correct status and properties again.
        $status = $entity_test->save();
        $this->assertSame(SAVED_UPDATED, $status);
        $this->assertSame($expected['id'], $entity_test->id());
        $this->assertSame($expected['uuid'], $entity_test->uuid());
        $this->assertSame($expected['name'], $entity_test->label());
        $this->assertFalse($entity_test->isNew());
        // Ensure that creating an entity with the same id as an existing one is not
        // possible.
        $same_id = EntityTestLabel::create([
            'id' => $entity_test->id(),
        ]);
        $this->assertTrue($same_id->isNew());
        try {
            $same_id->save();
            $this->fail('Not possible to overwrite an entity.');
        } catch (EntityStorageException $e) {
            // Expected exception; just continue testing.
        }
        // Verify that renaming the ID returns correct status and properties.
        $ids = [
            $expected['id'],
            'second_' . $this->randomMachineName(4),
            'third_' . $this->randomMachineName(4),
        ];
        for ($i = 1; $i < 3; $i++) {
            $old_id = $ids[$i - 1];
            $new_id = $ids[$i];
            // Before renaming, everything should point to the current ID.
            $this->assertSame($old_id, $entity_test->id());
            // Rename.
            $entity_test->id = $new_id;
            $this->assertSame($new_id, $entity_test->id());
            $status = $entity_test->save();
            $this->assertSame(SAVED_UPDATED, $status);
            $this->assertFalse($entity_test->isNew());
            // Verify that originalID points to new ID directly after renaming.
            $this->assertSame($new_id, $entity_test->id());
        }
    }
    
    /**
     * Tests uninstallation of a module that does not use the SQL entity storage.
     */
    public function testUninstall() : void {
        $uninstall_validator_reasons = \Drupal::service('content_uninstall_validator')->validate('keyvalue_test');
        $this->assertEmpty($uninstall_validator_reasons);
    }

}