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#![cfg(feature = "chrono")]
extern crate chrono;
extern crate pretty_assertions;
extern crate serde;
extern crate serde_derive;
extern crate serde_json;
extern crate serde_with;
use chrono::{DateTime, NaiveDateTime, Utc};
use pretty_assertions::assert_eq;
use serde_derive::Deserialize;
fn new_datetime(secs: i64, nsecs: u32) -> DateTime<Utc> {
DateTime::from_utc(NaiveDateTime::from_timestamp(secs, nsecs), Utc)
}
#[test]
fn json_datetime_from_any_to_string_deserialization() {
#[derive(Debug, Deserialize)]
struct S {
#[serde(with = "serde_with::chrono::datetime_utc_ts_seconds_from_any")]
date: DateTime<Utc>,
}
let from = r#"[
{ "date": 1478563200 },
{ "date": 0 },
{ "date": -86000 },
{ "date": 1478563200.123 },
{ "date": 0.000 },
{ "date": -86000.999 },
{ "date": "1478563200.123" },
{ "date": "0.000" },
{ "date": "-86000.999" }
]"#;
let res: Vec<S> = serde_json::from_str(from).unwrap();
// just integers
assert_eq!(new_datetime(1_478_563_200, 0), res[0].date);
assert_eq!(new_datetime(0, 0), res[1].date);
assert_eq!(new_datetime(-86000, 0), res[2].date);
// floats, shows precision errors in subsecond part
assert_eq!(new_datetime(1_478_563_200, 122_999_906), res[3].date);
assert_eq!(new_datetime(0, 0), res[4].date);
assert_eq!(new_datetime(-86000, 998_999_999), res[5].date);
// string representation of floats
assert_eq!(new_datetime(1_478_563_200, 123_000_000), res[6].date);
assert_eq!(new_datetime(0, 0), res[7].date);
assert_eq!(new_datetime(-86000, 999_000_000), res[8].date);
}
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