bson decoder can't handle optional values in case classes with 22+ fields

[sinha-abhi]

zio-schema-bson can't properly handle missing fields in bson even if the field is marked as optional. see example below

  final case class Test(
    a: Option[String] = None,
    b: Option[String] = None,
    d: Option[String] = None,
    e: Option[String] = None,
    f: Option[String] = None,
    g: Option[String] = None,
    h: Option[String] = None,
    i: Option[String] = None,
    j: Option[String] = None,
    k: Option[String] = None,
    l: Option[String] = None,
    m: Option[String] = None,
    n: Option[String] = None,
    o: Option[String] = None,
    p: Option[String] = None,
    q: Option[String] = None,
    r: Option[String] = None,
    s: Option[String] = None,
    t: Option[String] = None,
    u: Option[String] = None,
    v: Option[String] = None,
    w: Option[String] = None,
    x: Option[String] = None
  )

  implicit val schema: Schema[Test] = DeriveSchema.gen

  implicit val codec: BsonCodec[Test] = BsonSchemaCodec.bsonCodec(schema)

  codec.decoder.fromBsonValue(BsonDocument.parse("{}"))

the last line returns

Left(zio.bson.BsonDecoder$Error: Path: , error: Field a is missing. Don't use `decodeUnsafe` and `fromBsonValueUnsafe` methods.)

• scala version: 2.12.20
• java version: 11.0.28
• bson version: 5.5.1
• zio-schema/zio-schema-bson version: 1.7.3