trpl-zh-cn/listings/ch11-writing-automated-tests/no-listing-10-result-in-tests/src/lib.rs

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2022-02-06 16:43:51 +08:00
#[cfg(test)]
mod tests {
#[test]
fn it_works() -> Result<(), String> {
if 2 + 2 == 4 {
Ok(())
} else {
Err(String::from("two plus two does not equal four"))
}
}
}