通常，您不希望这样做，因为这可能会无意中影响在创建数据的测试之后运行的测试。

如果有一些数据需要在单个测试用例中对多个测试可用，可以使用wpSetUpBeforeClass(), 然后在中再次移除wpTearDownAfterClass().

例如REST API category controller test from core:

class WP_Test_REST_Categories_Controller extends WP_Test_REST_Controller_Testcase {
    protected static $administrator;
    protected static $subscriber;

    public static function wpSetUpBeforeClass( $factory ) {
        self::$administrator = $factory->user->create( array(
            \'role\' => \'administrator\',
        ) );
        self::$subscriber = $factory->user->create( array(
            \'role\' => \'subscriber\',
        ) );
    }

    public static function wpTearDownAfterClass() {
        self::delete_user( self::$administrator );
        self::delete_user( self::$subscriber );
    }

    // [snip]
}

    public function test_something() {

        do_something();

        $this->commit_transaction();
    }