Merge branch '2.7' into 2.8

* 2.7:
  [Config] Handle nullable node name + fix inheritdocs
  [Security] added userChecker to SimpleAuthenticationProvider
  [Debug] fix test
  Fix typo in test method name
  Fixes #26563 (open_basedir restriction in effect)
  [Debug] Reset previous exception handler ealier to prevent infinite loop
  add hint in Github pull request template
  [Validator] Fix docblock of ClassMetadata#members
  [BrowserKit] Fix cookie path handling when $domain is null
  [DoctrineBridge] Don't rely on ClassMetadataInfo->hasField in DoctrineOrmTypeGuesser anymore
  [BrowserKit] Improves CookieJar::get
  [BrowserKit] Fix Cookie's PHPDoc
  [DomCrawler] Change bad wording in ChoiceFormField::untick
  [DomCrawler] Fix the PHPDoc of ChoiceFormField::setValue
  [DomCrawler] Avoid a useless call to strtolower
  [FrameworkBundle] HttpCache is not longer abstract
  [DomCrawler] extract(): fix a bug when the attribute list is empty
  [Config] Backport string|null api for node names

Author: nicolas-grekas

Crawler.php

@@ -601,7 +601,7 @@ public function extract($attributes)
                 }
             }
 
-            $data[] = $count > 1 ? $elements : $elements[0];
+            $data[] = 1 === $count ? $elements[0] : $elements;
         }
 
         return $data;

Field/ChoiceFormField.php

@@ -97,14 +97,14 @@ public function tick()
     }
 
     /**
-     * Ticks a checkbox.
+     * Unticks a checkbox.
      *
      * @throws \LogicException When the type provided is not correct
      */
     public function untick()
     {
         if ('checkbox' !== $this->type) {
-            throw new \LogicException(sprintf('You cannot tick "%s" as it is not a checkbox (%s).', $this->name, $this->type));
+            throw new \LogicException(sprintf('You cannot untick "%s" as it is not a checkbox (%s).', $this->name, $this->type));
         }
 
         $this->setValue(false);
@@ -113,7 +113,7 @@ public function untick()
     /**
      * Sets the value of the field.
      *
-     * @param string $value The value of the field
+     * @param string|array $value The value of the field
      *
      * @throws \InvalidArgumentException When value type provided is not correct
      */

Field/InputFormField.php

@@ -32,11 +32,12 @@ protected function initialize()
             throw new \LogicException(sprintf('An InputFormField can only be created from an input or button tag (%s given).', $this->node->nodeName));
         }
 
-        if ('checkbox' === strtolower($this->node->getAttribute('type'))) {
+        $type = strtolower($this->node->getAttribute('type'));
+        if ('checkbox' === $type) {
             throw new \LogicException('Checkboxes should be instances of ChoiceFormField.');
         }
 
-        if ('file' === strtolower($this->node->getAttribute('type'))) {
+        if ('file' === $type) {
             throw new \LogicException('File inputs should be instances of FileFormField.');
         }
 

Tests/CrawlerTest.php

@@ -389,6 +389,7 @@ public function testExtract()
 
         $this->assertEquals(array('One', 'Two', 'Three'), $crawler->extract('_text'), '->extract() returns an array of extracted data from the node list');
         $this->assertEquals(array(array('One', 'first'), array('Two', ''), array('Three', '')), $crawler->extract(array('_text', 'class')), '->extract() returns an array of extracted data from the node list');
+        $this->assertEquals(array(array(), array(), array()), $crawler->extract(array()), '->extract() returns empty arrays if the attribute list is empty');
 
         $this->assertEquals(array(), $this->createTestCrawler()->filterXPath('//ol')->extract('_text'), '->extract() returns an empty array if the node list is empty');
     }