$this->assertSession()->pageTextContains("The alias {$edit_upper['alias[0][value]']} could not be added because it is already in use in this language with different capitalization: {$edit['alias[0][value]']}.");
$this->assertSession()->statusMessageContains("The alias {$edit_upper['alias[0][value]']} could not be added because it is already in use in this language with different capitalization: {$edit['alias[0][value]']}.",'error');