class ConfigEntityAdapterTest

class ConfigEntityAdapterTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'config_test',
    ];
    
    /**
     * The config entity.
     *
     * @var \Drupal\config_test\Entity\ConfigTest
     */
    protected $entity;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->installConfig(static::$modules);
        // ConfigTest::create doesn't work with the following exception:
        // "Multiple entity types found for Drupal\config_test\Entity\ConfigTest."
        $this->entity = \Drupal::entityTypeManager()->getStorage('config_test')
            ->create([
            'id' => 'system',
            'label' => 'foobar',
            'weight' => 1,
        ]);
    }
    
    /**
     * @covers \Drupal\Core\Entity\Plugin\DataType\Deriver\EntityDeriver::getDerivativeDefinitions
     */
    public function testEntityDeriver() {
        $definition = \Drupal::typedDataManager()->getDefinition('entity:config_test');
        $this->assertEquals(ConfigEntityAdapter::class, $definition['class']);
    }
    
    /**
     * @covers ::validate
     */
    public function testValidate() {
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        $violations = $adapter->validate();
        $this->assertEmpty($violations);
        $this->entity = \Drupal::entityTypeManager()->getStorage('config_test')
            ->create([
            'id' => 'system',
            'label' => 'foobar',
            // Set weight to be a string which should not validate.
'weight' => 'very heavy',
        ]);
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        $violations = $adapter->validate();
        $this->assertCount(1, $violations);
        $violation = $violations->get(0);
        $this->assertEquals('This value should be of the correct primitive type.', $violation->getMessage());
        $this->assertEquals('weight', $violation->getPropertyPath());
    }
    
    /**
     * @covers ::getProperties
     */
    public function testGetProperties() {
        $expected_properties = [
            'uuid' => StringData::class,
            'langcode' => StringData::class,
            'status' => BooleanData::class,
            'dependencies' => Mapping::class,
            'id' => StringData::class,
            'label' => StringData::class,
            'weight' => IntegerData::class,
            'style' => StringData::class,
            'size' => StringData::class,
            'size_value' => StringData::class,
            'protected_property' => StringData::class,
        ];
        $properties = ConfigEntityAdapter::createFromEntity($this->entity)
            ->getProperties();
        $keys = [];
        foreach ($properties as $key => $property) {
            $keys[] = $key;
            $this->assertInstanceOf($expected_properties[$key], $property);
        }
        $this->assertSame(array_keys($expected_properties), $keys);
    }
    
    /**
     * @covers ::getValue
     */
    public function testGetValue() {
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        $this->assertEquals($this->entity->weight, $adapter->get('weight')
            ->getValue());
        $this->assertEquals($this->entity
            ->id(), $adapter->get('id')
            ->getValue());
        $this->assertEquals($this->entity->label, $adapter->get('label')
            ->getValue());
    }
    
    /**
     * @covers ::set
     */
    public function testSet() {
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        // Get the value via typed data to ensure that the typed representation is
        // updated correctly when the value is set.
        $this->assertEquals(1, $adapter->get('weight')
            ->getValue());
        $return = $adapter->set('weight', 2);
        $this->assertSame($adapter, $return);
        $this->assertEquals(2, $this->entity->weight);
        // Ensure the typed data is updated via the set too.
        $this->assertEquals(2, $adapter->get('weight')
            ->getValue());
    }
    
    /**
     * @covers ::getString
     */
    public function testGetString() {
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        $this->assertEquals('foobar', $adapter->getString());
    }
    
    /**
     * @covers ::applyDefaultValue
     */
    public function testApplyDefaultValue() {
        $this->expectException(\BadMethodCallException::class);
        $this->expectExceptionMessage('Method not supported');
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        $adapter->applyDefaultValue();
    }
    
    /**
     * @covers ::getIterator
     */
    public function testGetIterator() {
        $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
        $iterator = $adapter->getIterator();
        $fields = iterator_to_array($iterator);
        $expected_fields = [
            'uuid',
            'langcode',
            'status',
            'dependencies',
            'id',
            'label',
            'weight',
            'style',
            'size',
            'size_value',
            'protected_property',
        ];
        $this->assertEquals($expected_fields, array_keys($fields));
        $this->assertEquals($this->entity
            ->id(), $fields['id']->getValue());
        $adapter->setValue(NULL);
        $this->assertEquals(new \ArrayIterator([]), $adapter->getIterator());
    }

}