use super::NaiveTime;
use core::fmt;
use serde::{de, ser};
impl ser::Serialize for NaiveTime {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: ser::Serializer,
{
serializer.collect_str(&self)
}
}
struct NaiveTimeVisitor;
impl<'de> de::Visitor<'de> for NaiveTimeVisitor {
type Value = NaiveTime;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a formatted time string")
}
fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
value.parse().map_err(E::custom)
}
}
impl<'de> de::Deserialize<'de> for NaiveTime {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: de::Deserializer<'de>,
{
deserializer.deserialize_str(NaiveTimeVisitor)
}
}
#[cfg(test)]
mod tests {
use crate::NaiveTime;
#[test]
fn test_serde_serialize() {
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_opt(0, 0, 0).unwrap()).ok(),
Some(r#""00:00:00""#.into())
);
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_milli_opt(0, 0, 0, 950).unwrap()).ok(),
Some(r#""00:00:00.950""#.into())
);
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_milli_opt(0, 0, 59, 1_000).unwrap()).ok(),
Some(r#""00:00:60""#.into())
);
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_opt(0, 1, 2).unwrap()).ok(),
Some(r#""00:01:02""#.into())
);
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_nano_opt(3, 5, 7, 98765432).unwrap()).ok(),
Some(r#""03:05:07.098765432""#.into())
);
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_opt(7, 8, 9).unwrap()).ok(),
Some(r#""07:08:09""#.into())
);
assert_eq!(
serde_json::to_string(&NaiveTime::from_hms_micro_opt(12, 34, 56, 789).unwrap()).ok(),
Some(r#""12:34:56.000789""#.into())
);
let leap = NaiveTime::from_hms_nano_opt(23, 59, 59, 1_999_999_999).unwrap();
assert_eq!(serde_json::to_string(&leap).ok(), Some(r#""23:59:60.999999999""#.into()));
}
#[test]
fn test_serde_deserialize() {
let from_str = serde_json::from_str::<NaiveTime>;
assert_eq!(from_str(r#""00:00:00""#).ok(), Some(NaiveTime::from_hms_opt(0, 0, 0).unwrap()));
assert_eq!(from_str(r#""0:0:0""#).ok(), Some(NaiveTime::from_hms_opt(0, 0, 0).unwrap()));
assert_eq!(
from_str(r#""00:00:00.950""#).ok(),
Some(NaiveTime::from_hms_milli_opt(0, 0, 0, 950).unwrap())
);
assert_eq!(
from_str(r#""0:0:0.95""#).ok(),
Some(NaiveTime::from_hms_milli_opt(0, 0, 0, 950).unwrap())
);
assert_eq!(
from_str(r#""00:00:60""#).ok(),
Some(NaiveTime::from_hms_milli_opt(0, 0, 59, 1_000).unwrap())
);
assert_eq!(from_str(r#""00:01:02""#).ok(), Some(NaiveTime::from_hms_opt(0, 1, 2).unwrap()));
assert_eq!(
from_str(r#""03:05:07.098765432""#).ok(),
Some(NaiveTime::from_hms_nano_opt(3, 5, 7, 98765432).unwrap())
);
assert_eq!(from_str(r#""07:08:09""#).ok(), Some(NaiveTime::from_hms_opt(7, 8, 9).unwrap()));
assert_eq!(
from_str(r#""12:34:56.000789""#).ok(),
Some(NaiveTime::from_hms_micro_opt(12, 34, 56, 789).unwrap())
);
assert_eq!(
from_str(r#""23:59:60.999999999""#).ok(),
Some(NaiveTime::from_hms_nano_opt(23, 59, 59, 1_999_999_999).unwrap())
);
assert_eq!(
from_str(r#""23:59:60.9999999999997""#).ok(), Some(NaiveTime::from_hms_nano_opt(23, 59, 59, 1_999_999_999).unwrap())
);
assert!(from_str(r#""""#).is_err());
assert!(from_str(r#""000000""#).is_err());
assert!(from_str(r#""00:00:61""#).is_err());
assert!(from_str(r#""00:60:00""#).is_err());
assert!(from_str(r#""24:00:00""#).is_err());
assert!(from_str(r#""23:59:59,1""#).is_err());
assert!(from_str(r#""012:34:56""#).is_err());
assert!(from_str(r#""hh:mm:ss""#).is_err());
assert!(from_str(r#"0"#).is_err());
assert!(from_str(r#"86399"#).is_err());
assert!(from_str(r#"{}"#).is_err());
}
#[test]
fn test_serde_bincode() {
use bincode::{deserialize, serialize};
let t = NaiveTime::from_hms_nano_opt(3, 5, 7, 98765432).unwrap();
let encoded = serialize(&t).unwrap();
let decoded: NaiveTime = deserialize(&encoded).unwrap();
assert_eq!(t, decoded);
}
}