symfony
diff --git a/‎src/Symfony/Component/Form/FormBuilder.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Form/FormBuilder.php
+2-2Lines changed: 2 additions & 2 deletions b/‎src/Symfony/Component/Form/FormBuilder.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Form/FormBuilder.php
+2-2Lines changed: 2 additions & 2 deletions
diff --git a/‎src/Symfony/Component/Form/Tests/FormBuilderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Form/Tests/FormBuilderTest.php
+8Lines changed: 8 additions & 0 deletions b/‎src/Symfony/Component/Form/Tests/FormBuilderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Form/Tests/FormBuilderTest.php
+8Lines changed: 8 additions & 0 deletions
@@ -62,7 +62,7 @@ public function add($child, $type = null, array $options = array())
             throw new BadMethodCallException('FormBuilder methods cannot be accessed anymore once the builder is turned into a FormConfigInterface instance.');
         }
 
-        if ($child instanceof self) {
+        if ($child instanceof FormBuilderInterface) {
             $this->children[$child->getName()] = $child;
 
             // In case an unresolved child with the same name exists
@@ -72,7 +72,7 @@ public function add($child, $type = null, array $options = array())
         }
 
         if (!is_string($child) && !is_int($child)) {
-            throw new UnexpectedTypeException($child, 'string, integer or Symfony\Component\Form\FormBuilder');
+            throw new UnexpectedTypeException($child, 'string, integer or Symfony\Component\Form\FormBuilderInterface');
         }
 
         if (null !== $type && !is_string($type) && !$type instanceof FormTypeInterface) {
 
@@ -11,7 +11,9 @@
 
 namespace Symfony\Component\Form\Tests;
 
+use Symfony\Component\Form\ButtonBuilder;
 use Symfony\Component\Form\FormBuilder;
+use Symfony\Component\Form\SubmitButtonBuilder;
 
 class FormBuilderTest extends \PHPUnit_Framework_TestCase
 {
@@ -154,6 +156,12 @@ public function testCreateNoTypeNo()
         $this->builder->create('foo');
     }
 
+    public function testAddButton()
+    {
+        $this->builder->add(new ButtonBuilder('reset'));
+        $this->builder->add(new SubmitButtonBuilder('submit'));
+    }
+
     public function testGetUnknown()
     {
         $this->setExpectedException('Symfony\Component\Form\Exception\InvalidArgumentException', 'The child with the name "foo" does not exist.');
Original file line number	Diff line number	Diff line change
`@@ -62,7 +62,7 @@ public function add($child, $type = null, array $options = array())`
`62`	`62`	`throw new BadMethodCallException('FormBuilder methods cannot be accessed anymore once the builder is turned into a FormConfigInterface instance.');`
`63`	`63`	`}`
`64`	`64`
`65`		`- if ($child instanceof self) {`
	`65`	`+ if ($child instanceof FormBuilderInterface) {`
`66`	`66`	`$this->children[$child->getName()] = $child;`
`67`	`67`
`68`	`68`	`// In case an unresolved child with the same name exists`
`@@ -72,7 +72,7 @@ public function add($child, $type = null, array $options = array())`
`72`	`72`	`}`
`73`	`73`
`74`	`74`	`if (!is_string($child) && !is_int($child)) {`
`75`		`- throw new UnexpectedTypeException($child, 'string, integer or Symfony\Component\Form\FormBuilder');`
	`75`	`+ throw new UnexpectedTypeException($child, 'string, integer or Symfony\Component\Form\FormBuilderInterface');`
`76`	`76`	`}`
`77`	`77`
`78`	`78`	`if (null !== $type && !is_string($type) && !$type instanceof FormTypeInterface) {`