Check to see if two values are not equal.
$first: The first value to check.
$second: The second value to check.
$message: The message to display along with the assertion.
$group: The type of assertion - examples are "Browser", "PHP".
TRUE if the assertion succeeded, FALSE otherwise.
protected function assertNotEqual($first, $second, $message = '', $group = 'Other') {
return $this
->assert($first != $second, $message ? $message : t('Value @first is not equal to value @second.', array(
'@first' => var_export($first, TRUE),
'@second' => var_export($second, TRUE),
)), $group);
}