Delete created files and temporary files directory, delete the tables created by setUp(), and reset the database prefix.
Overrides TestBase::tearDown
protected function tearDown() {
// Destroy the testing kernel.
if (isset($this->kernel)) {
$this->kernel
->shutdown();
}
parent::tearDown();
// Ensure that internal logged in variable and cURL options are reset.
$this->loggedInUser = FALSE;
$this->additionalCurlOptions = array();
// Close the CURL handler.
$this
->curlClose();
}