gistfile1.php

<?php

class MyTest
{
  public function testSomething()
  {
    $crawler = $this->request('/foo');
    $form = $this->findFormByButtonText('Save');
    
    $data = array(
      'name' => 'Foo'
    );
    $this->fillForm($form, $data);
    
    // do something else like maybe add a file
    
    $this->submitForm($form);
  }
  
  public function findFormByButtonText($crawler, $buttonText)
  {
    $form = $button->form();
    $name = // find the form name from first input/select/textarea
    return new Form($form->getNode(), $form->getUri(), $form->getMethod(), $name);
  }
  
  protected function findFormBySelector($crawler, $cssSelector)
  {
    // example maybe use a css selector
  }
}

class Form extends Form
{
  protected $crawler;
  protected $namePrefix;
  
  public function __construct(\DomElement $node, $currentUri, $method, $namePrefix = '')
  {
    $this->namePrefix = $namePrefix;
    parent::__construct($node, $currentUri, $method);
  }
  
  public function getNamePrefix()
  {
    return $this->getNamePrefix();
  }
}