public function testFindingFormsByImage()
{
$frame = new MockSimplePage();
$form = new MockSimpleForm();
$frame->returns('getFormByImage', $form, array(new SelectByLabel('a')));
$frameset = new SimpleFrameset(new MockSimplePage());
$frameset->addFrame(new MockSimplePage(), 'A');
$frameset->addFrame($frame, 'B');
$this->assertSame($frameset->getFormByImage(new SelectByLabel('a')), $form);
$frameset->setFrameFocus('A');
$this->assertNull($frameset->getFormByImage(new SelectByLabel('a')));
$frameset->setFrameFocus('B');
$this->assertSame($frameset->getFormByImage(new SelectByLabel('a')), $form);
}
