Very basic FormHelper::create() test is passing again.

FormHelper doesn't need to add ID's to every element it creates.
Removing id generation on form elements reduces the chances it will
create duplicate ID's requiring developer intervention.

src/View/Helper/FormHelper.php

@@ -159,7 +159,7 @@ class FormHelper extends Helper {
  * @var array
  */
 	protected $_defaultTemplates = [
-		'formstart' => '<form {{attrs}}>',
+		'formstart' => '<form{{attrs}}>',
 		'formend' => '</form>',
 	];
 
@@ -297,11 +297,6 @@ public function create($model = null, $options = []) {
 			'encoding' => strtolower(Configure::read('App.encoding')),
 			], $options);
 
-		if (!isset($options['id'])) {
-			$domId = isset($options['action']) ? $options['action'] : $this->request['action'];
-			$options['id'] = $this->domId($domId . 'Form');
-		}
-
 		if ($options['action'] === null && $options['url'] === null) {
 			$options['action'] = $this->request->here(false);
 		} elseif (empty($options['url']) || is_array($options['url'])) {

tests/TestCase/View/Helper/FormHelperTest.php

@@ -605,16 +605,14 @@ public function testCreateContextSelectionBuiltIn($data, $class) {
  * @return void
  */
 	public function testCreateWithSecurity() {
-		$this->markTestIncomplete();
 		$this->Form->request->params['_csrfToken'] = 'testKey';
 		$encoding = strtolower(Configure::read('App.encoding'));
 		$article = new Article();
 		$result = $this->Form->create($article, [
 			'url' => '/contacts/add',
-			'context' => ['table' => 'Articles']
 		]);
 		$expected = array(
-			'form' => array('method' => 'post', 'action' => '/contacts/add', 'accept-charset' => $encoding, 'id' => 'ContactAddForm'),
+			'form' => array('method' => 'post', 'action' => '/contacts/add', 'accept-charset' => $encoding),
 			'div' => array('style' => 'display:none;'),
 			array('input' => array('type' => 'hidden', 'name' => '_method', 'value' => 'POST')),
 			array('input' => array(
@@ -624,7 +622,7 @@ public function testCreateWithSecurity() {
 		);
 		$this->assertTags($result, $expected);
 
-		$result = $this->Form->create('Contact', array('url' => '/contacts/add', 'id' => 'MyForm'));
+		$result = $this->Form->create($article, ['url' => '/contacts/add', 'id' => 'MyForm']);
 		$expected['form']['id'] = 'MyForm';
 		$this->assertTags($result, $expected);
 	}