protected function get_wp_version()
	{
		$this->getSession()->visit( $this->locatePath( '/' ) );
		$page = $this->getSession()->getPage();
		$meta = $page->find( 'css', "meta[name=generator]" );
		if ( $meta ) {
			$version = $meta->getAttribute( "content" );
			if ( $version ) {
				return str_replace( "WordPress ", "", $version );
			}
		}

		throw new \Exception( "No version number found" );
	}