28 lines
535 B
Rust
28 lines
535 B
Rust
// run-pass
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#![allow(non_camel_case_types)]
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#![allow(dead_code)]
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#[derive(Clone, Debug)]
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enum foo {
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a(usize),
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b(String),
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}
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fn check_log<T: std::fmt::Debug>(exp: String, v: T) {
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assert_eq!(exp, format!("{:?}", v));
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}
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pub fn main() {
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let mut x = Some(foo::a(22));
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let exp = "Some(a(22))".to_string();
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let act = format!("{:?}", x);
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assert_eq!(act, exp);
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check_log(exp, x);
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x = None;
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let exp = "None".to_string();
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let act = format!("{:?}", x);
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assert_eq!(act, exp);
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check_log(exp, x);
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}
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