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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: bson-1.1.0, bson-1.2.0, bson-1.2.1
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Component/s: BSON
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None
In BSON, datetimes are represented in millisecond precision. When serializing a chrono::DateTime with greater precision than milliseconds to a BSON datetime, the extra information is silently discarded. Instead of doing so, we should return an error indicating that the date cannot be represented in BSON.
repro:
let doc = doc! { "date": chrono::Utc.timestamp(100, 5) };
let mut v: Vec<u8> = Vec::new();
doc.to_writer(&mut v).unwrap();
let dout = Document::from_reader(&mut v.as_slice()).unwrap();
assert_eq!(doc, dout);
yields:
thread 'main' panicked at 'assertion failed: `(left == right)` left: `Document({"date": DateTime(1970-01-01T00:01:40.000000005Z)})`, right: `Document({"date": DateTime(1970-01-01T00:01:40Z)})`', src/main.rs:222:5
