PopTest\Form\SelectTest::testOptGroup PHP Method

    public function testOptGroup()
    {
        $s = new Select('colors', array('Red' => 'Red', 'Blue' => 'Blue', 'Green' => 'Green', 'Other' => array('Black' => 'Black', 'White' => 'White')), array('Blue', 'Black'));
        $s->setAttributes('multiple', 'multiple');
        $this->assertContains('<optgroup label="', $s->render(true));
    }