serde/test_suite/tests/test_value.rs

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Rust
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#[macro_use]
extern crate serde_derive;
extern crate serde;
use serde::Deserialize;
use serde::de::value::{self, ValueDeserializer};
#[test]
fn test_u32_to_enum() {
#[derive(Deserialize, Debug, PartialEq)]
enum E {
A,
B,
}
let deserializer = ValueDeserializer::<value::Error>::into_deserializer(1u32);
let e: E = E::deserialize(deserializer).unwrap();
assert_eq!(E::B, e);
}