trait BasicAuthTestTrait

trait BasicAuthTestTrait {
    
    /**
     * Retrieves a Drupal path or an absolute path using basic authentication.
     *
     * @param \Drupal\Core\Url|string $path
     *   Drupal path or URL to load into the internal browser.
     * @param string $username
     *   The username to use for basic authentication.
     * @param string $password
     *   The password to use for basic authentication.
     * @param array $options
     *   (optional) Options to be forwarded to the URL generator.
     *
     * @return string
     *   The retrieved HTML string, also available as $this->getRawContent().
     */
    protected function basicAuthGet($path, $username, $password, array $options = []) {
        return $this->drupalGet($path, $options, $this->getBasicAuthHeaders($username, $password));
    }
    
    /**
     * Returns HTTP headers that can be used for basic authentication in Curl.
     *
     * @param string $username
     *   The username to use for basic authentication.
     * @param string $password
     *   The password to use for basic authentication.
     *
     * @return array
     *   An array of raw request headers as used by curl_setopt().
     */
    protected function getBasicAuthHeaders($username, $password) {
        // Set up Curl to use basic authentication with the test user's credentials.
        return [
            'Authorization' => 'Basic ' . base64_encode("{$username}:{$password}"),
        ];
    }

}