isElementPresentInIframe

test.php

public function isElementPresentInIframe($element_locator, $iframe_locator, $timeout = null) {
  $this->selectFrame($iframe_locator);
  if (empty($timeout) {
    $this->waitForFrameToLoad();
  }
  else {
    $this->waitForFrameToLoad($timeout);
  }
  return $this->isElementPresent($element_locator);
}

public function assertElementPresentInIframe($element_locator, $iframe_locator) {
  $this->assertTrue($this->isElementPresentInIframe($element_locator, $iframe_locator));
}