Mark Farnan created AVRO-3695:
---------------------------------
Summary: [Rust] Can't validate schema with value when Nullable
union has multiple types.
Key: AVRO-3695
URL: https://issues.apache.org/jira/browse/AVRO-3695
Project: Apache Avro
Issue Type: Bug
Components: rust
Reporter: Mark Farnan
If a union has more than one 'type' (other than null), to_avro_datum is unable
to validate the schema with the value type, and throws a validation error.
Schema:
{code:java}
{ "type": "record", "namespace": "datatypes", "name": "nullunion", "fields": [
{"name": "item", "type": [ "null", "long", "double" ] } ] } {code}
Struct: (This was generated by rsgen-avro)
{code:java}
/// Auto-generated type for unnamed Avro union variants.
#[derive(Debug, PartialEq, Clone, serde::Deserialize, serde::Serialize)]
pub enum UnionLongDouble { Long(i64), Double(f64),}
#[derive(Debug, PartialEq, Clone, serde::Deserialize, serde::Serialize)]
pub struct NullUnion { pub item: Option<UnionLongDouble>,}{code}
{code:java}
#[test]
fn test_multivalue_union_tovalue() {
let nuschema = r#"
{
"type": "record",
"namespace": "datatypes",
"name": "nullunion",
"fields":
[
{"name": "item",
"type": [
"null",
"long",
"double"
]
}
]
}
"#;
let nullunion = NullUnion {
item: Some(UnionLongDouble::Long(34)),
}; let schema = Schema::parse_str(nuschema).unwrap();
let nu_value = to_value(nullunion).unwrap();
let nu_encoded = to_avro_datum(&schema, nu_value).unwrap();
} {code}
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