class EntityFormTest

class EntityFormTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'entity_test',
        'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * The current user of the test.
     *
     * @var \Drupal\user\Entity\User|false
     */
    protected $webUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->webUser = $this->drupalCreateUser([
            'administer entity_test content',
            'view test entity',
        ]);
        $this->drupalLogin($this->webUser);
        // Add a language.
        ConfigurableLanguage::createFromLangcode('ro')->save();
    }
    
    /**
     * Tests basic form CRUD functionality.
     */
    public function testFormCRUD() : void {
        // All entity variations have to have the same results.
        foreach (entity_test_entity_types() as $entity_type) {
            $this->doTestFormCRUD($entity_type);
        }
    }
    
    /**
     * Tests basic multilingual form CRUD functionality.
     */
    public function testMultilingualFormCRUD() : void {
        // All entity variations have to have the same results.
        foreach (entity_test_entity_types(ENTITY_TEST_TYPES_MULTILINGUAL) as $entity_type) {
            $this->doTestMultilingualFormCRUD($entity_type);
        }
    }
    
    /**
     * Tests hook_entity_form_mode_alter() and hook_ENTITY_TYPE_form_mode_alter().
     *
     * @see entity_test_entity_form_mode_alter()
     * @see entity_test_entity_test_form_mode_alter()
     */
    public function testEntityFormModeAlter() : void {
        // Create compact entity display.
        EntityFormMode::create([
            'id' => 'entity_test.compact',
            'label' => 'Compact',
            'targetEntityType' => 'entity_test',
        ])->save();
        EntityFormDisplay::create([
            'targetEntityType' => 'entity_test',
            'bundle' => 'entity_test',
            'mode' => 'compact',
            'status' => TRUE,
        ])->removeComponent('field_test_text')
            ->save();
        // The field should be available on default form mode.
        $entity1 = EntityTest::create([
            'name' => $this->randomString(),
        ]);
        $entity1->save();
        $this->drupalGet($entity1->toUrl('edit-form'));
        $this->assertSession()
            ->elementExists('css', 'input[name="field_test_text[0][value]"]');
        // The field should be hidden on compact form mode.
        // See: entity_test_entity_form_mode_alter().
        $entity2 = EntityTest::create([
            'name' => 'compact_form_mode',
        ]);
        $entity2->save();
        $this->drupalGet($entity2->toUrl('edit-form'));
        $this->assertSession()
            ->elementNotExists('css', 'input[name="field_test_text[0][value]"]');
        $entity3 = EntityTest::create([
            'name' => 'test_entity_type_form_mode_alter',
        ]);
        $entity3->save();
        $this->drupalGet($entity3->toUrl('edit-form'));
        $this->assertSession()
            ->elementNotExists('css', 'input[name="field_test_text[0][value]"]');
    }
    
    /**
     * Tests hook_entity_form_display_alter().
     *
     * Verify that the altered field has the correct size value.
     *
     * @see entity_test_entity_form_display_alter()
     */
    public function testEntityFormDisplayAlter() : void {
        $this->drupalGet('entity_test/add');
        $altered_field = $this->assertSession()
            ->fieldExists('field_test_text[0][value]');
        $this->assertEquals(42, $altered_field->getAttribute('size'));
    }
    
    /**
     * Executes the form CRUD tests for the given entity type.
     *
     * @param string $entity_type
     *   The entity type to run the tests with.
     */
    protected function doTestFormCRUD($entity_type) {
        $name1 = $this->randomMachineName(8);
        $name2 = $this->randomMachineName(10);
        $edit = [
            'name[0][value]' => $name1,
            'field_test_text[0][value]' => $this->randomMachineName(16),
        ];
        $this->drupalGet($entity_type . '/add');
        $this->submitForm($edit, 'Save');
        $entity = $this->loadEntityByName($entity_type, $name1);
        $this->assertNotNull($entity, "{$entity_type}: Entity found in the database.");
        $edit['name[0][value]'] = $name2;
        $this->drupalGet($entity_type . '/manage/' . $entity->id() . '/edit');
        $this->submitForm($edit, 'Save');
        $entity = $this->loadEntityByName($entity_type, $name1);
        $this->assertNull($entity, "{$entity_type}: The entity has been modified.");
        $entity = $this->loadEntityByName($entity_type, $name2);
        $this->assertNotNull($entity, "{$entity_type}: Modified entity found in the database.");
        $this->assertNotEquals($name1, $entity->name->value, "{$entity_type}: The entity name has been modified.");
        $this->drupalGet($entity_type . '/manage/' . $entity->id() . '/edit');
        $this->clickLink('Delete');
        $this->submitForm([], 'Delete');
        $entity = $this->loadEntityByName($entity_type, $name2);
        $this->assertNull($entity, "{$entity_type}: Entity not found in the database.");
    }
    
    /**
     * Executes the multilingual form CRUD tests for the given entity type ID.
     *
     * @param string $entity_type_id
     *   The ID of entity type to run the tests with.
     */
    protected function doTestMultilingualFormCRUD($entity_type_id) {
        $name1 = $this->randomMachineName(8);
        $name1_ro = $this->randomMachineName(9);
        $name2_ro = $this->randomMachineName(11);
        $edit = [
            'name[0][value]' => $name1,
            'field_test_text[0][value]' => $this->randomMachineName(16),
        ];
        $this->drupalGet($entity_type_id . '/add');
        $this->submitForm($edit, 'Save');
        $entity = $this->loadEntityByName($entity_type_id, $name1);
        $this->assertNotNull($entity, "{$entity_type_id}: Entity found in the database.");
        // Add a translation to the newly created entity without using the Content
        // translation module.
        $entity->addTranslation('ro', [
            'name' => $name1_ro,
        ])
            ->save();
        $translated_entity = $this->loadEntityByName($entity_type_id, $name1)
            ->getTranslation('ro');
        $this->assertEquals($name1_ro, $translated_entity->name->value, "{$entity_type_id}: The translation has been added.");
        $edit['name[0][value]'] = $name2_ro;
        $this->drupalGet('ro/' . $entity_type_id . '/manage/' . $entity->id() . '/edit');
        $this->submitForm($edit, 'Save');
        $translated_entity = $this->loadEntityByName($entity_type_id, $name1)
            ->getTranslation('ro');
        $this->assertNotNull($translated_entity, "{$entity_type_id}: Modified translation found in the database.");
        $this->assertEquals($name2_ro, $translated_entity->name->value, "{$entity_type_id}: The name of the translation has been modified.");
        $this->drupalGet('ro/' . $entity_type_id . '/manage/' . $entity->id() . '/edit');
        $this->clickLink('Delete');
        $this->submitForm([], 'Delete Romanian translation');
        $entity = $this->loadEntityByName($entity_type_id, $name1);
        $this->assertNotNull($entity, "{$entity_type_id}: The original entity still exists.");
        $this->assertFalse($entity->hasTranslation('ro'), "{$entity_type_id}: Entity translation does not exist anymore.");
    }
    
    /**
     * Loads a test entity by name always resetting the storage cache.
     */
    protected function loadEntityByName($entity_type, $name) {
        // Always load the entity from the database to ensure that changes are
        // correctly picked up.
        $entity_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage($entity_type);
        $entity_storage->resetCache();
        $entities = $entity_storage->loadByProperties([
            'name' => $name,
        ]);
        return $entities ? current($entities) : NULL;
    }
    
    /**
     * Checks that validation handlers works as expected.
     */
    public function testValidationHandlers() : void {
        
        /** @var \Drupal\Core\State\StateInterface $state */
        $state = $this->container
            ->get('state');
        // Check that from-level validation handlers can be defined and can alter
        // the form array.
        $state->set('entity_test.form.validate.test', 'form-level');
        $this->drupalGet('entity_test/add');
        $this->submitForm([], 'Save');
        $this->assertTrue($state->get('entity_test.form.validate.result'), 'Form-level validation handlers behave correctly.');
        // Check that defining a button-level validation handler causes an exception
        // to be thrown.
        $state->set('entity_test.form.validate.test', 'button-level');
        $this->drupalGet('entity_test/add');
        $this->submitForm([], 'Save');
        $this->assertEquals('Drupal\\Core\\Entity\\EntityStorageException: Entity validation is required, but was skipped.', $state->get('entity_test.form.save.exception'), 'Button-level validation handlers behave correctly.');
    }
    
    /**
     * Tests the route add-page with multiple parameters.
     */
    public function testAddPageWithMultipleParameters() : void {
        $this->drupalGet('entity_test_add_page/' . $this->webUser
            ->id() . '/add');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('Add entity test route add page');
    }

}