如何在非异步函数上等待Rust Future

在这里生锈新手（不到7天的学习时间），这是所有权规则为异步/等待后我要克服的第二个障碍。

I am writing a test that calls an async function and I need to get the result from the Future without using the keyword await.

I have looked at async_test, however I can't use that because (as I understand) this requires tokio runtime and #[tokio_main] attribute in my main method - but I have my main already decorated with #[actix_rt::main]

这是我的考验

#[test]
pub fn test_get_item() -> Result<(), anyhow::Error> {
    let c = SomeClient::new();
    let result = c.get_item(123456).await?; // <- this is not allowed

    assert_eq!("Hello", result.title);
    assert_eq!("https://example.com", result.url.as_str());

    Ok(())
}

我尝试过和失败的事情（主要是由于我对Rust缺乏了解）

• Use async_test on an actix web project using futures-await-test crate.
• Read this thread in reddit.
• Follow few examples from this rust community thread
• Tried to poll() the future but it didn't lead me anywhere.

I don't understand why this has to be so complicated, maybe there is a simple function (like wait() or get_result()) somewhere for Future?

谢谢你的帮助。