Symfony\Component\Form\Tests\CompoundFormTest::testSetDataMapsViewDataToChildren PHP Method

    public function testSetDataMapsViewDataToChildren()
    {
        $mapper = $this->getDataMapper();
        $form = $this->getBuilder()
            ->setCompound(true)
            ->setDataMapper($mapper)
            ->addViewTransformer(new FixedDataTransformer(array(
                '' => '',
                'foo' => 'bar',
            )))
            ->getForm();

        $form->add($child1 = $this->getBuilder('firstName')->getForm());
        $form->add($child2 = $this->getBuilder('lastName')->getForm());

        $mapper->expects($this->once())
            ->method('mapDataToForms')
            ->with('bar', $this->isInstanceOf('\RecursiveIteratorIterator'))
            ->will($this->returnCallback(function ($data, \RecursiveIteratorIterator $iterator) use ($child1, $child2) {
                $this->assertInstanceOf('Symfony\Component\Form\Util\InheritDataAwareIterator', $iterator->getInnerIterator());
                $this->assertSame(array('firstName' => $child1, 'lastName' => $child2), iterator_to_array($iterator));
            }));

        $form->setData('foo');
    }