Tests invalid invocations of drupal_valid_token() that must return FALSE.
public function testTokenValidation() {
// The following checks will throw PHP notices, so we disable error
// assertions.
$this->assertErrors = FALSE;
$this
->assertFalse(drupal_valid_token(NULL, new stdClass()), 'Token NULL, value object returns FALSE.');
$this
->assertFalse(drupal_valid_token(0, array()), 'Token 0, value array returns FALSE.');
$this
->assertFalse(drupal_valid_token('', array()), "Token '', value array returns FALSE.");
$this
->assertFalse('' === drupal_get_token(array()), 'Token generation does not return an empty string on invalid parameters.');
$this->assertErrors = TRUE;
$this
->assertFalse(drupal_valid_token(TRUE, 'foo'), 'Token TRUE, value foo returns FALSE.');
$this
->assertFalse(drupal_valid_token(0, 'foo'), 'Token 0, value foo returns FALSE.');
}