zeapo commented on a change in pull request #7309:
URL: https://github.com/apache/arrow/pull/7309#discussion_r434797655
##########
File path: rust/arrow/src/json/reader.rs
##########
@@ -1037,62 +1065,73 @@ mod tests {
.unwrap();
let batch = reader.next().unwrap().unwrap();
- assert_eq!(4, batch.num_columns());
- assert_eq!(4, batch.num_rows());
-
- let schema = batch.schema();
-
- let a = schema.column_with_name("a").unwrap();
- assert_eq!(&DataType::Int64, a.1.data_type());
- let b = schema.column_with_name("b").unwrap();
- assert_eq!(
- &DataType::List(Box::new(DataType::Float64)),
- b.1.data_type()
- );
- let c = schema.column_with_name("c").unwrap();
- assert_eq!(
- &DataType::List(Box::new(DataType::Boolean)),
- c.1.data_type()
- );
- let d = schema.column_with_name("d").unwrap();
- assert_eq!(&DataType::List(Box::new(DataType::Utf8)), d.1.data_type());
-
- let bb = batch
- .column(b.0)
- .as_any()
- .downcast_ref::<ListArray>()
- .unwrap();
- let bb = bb.values();
- let bb = bb.as_any().downcast_ref::<Float64Array>().unwrap();
- assert_eq!(10, bb.len());
- assert_eq!(4.0, bb.value(9));
-
- let cc = batch
- .column(c.0)
- .as_any()
- .downcast_ref::<ListArray>()
- .unwrap();
- let cc = cc.values();
- let cc = cc.as_any().downcast_ref::<BooleanArray>().unwrap();
- assert_eq!(6, cc.len());
- assert_eq!(false, cc.value(0));
- assert_eq!(false, cc.value(3));
- assert_eq!(false, cc.is_valid(2));
- assert_eq!(false, cc.is_valid(4));
-
- let dd = batch
- .column(d.0)
- .as_any()
- .downcast_ref::<ListArray>()
- .unwrap();
- let dd = dd.values();
- let dd = dd.as_any().downcast_ref::<StringArray>().unwrap();
- assert_eq!(7, dd.len());
- assert_eq!(false, dd.is_valid(1));
- assert_eq!("text", dd.value(2));
- assert_eq!("1", dd.value(3));
- assert_eq!("false", dd.value(4));
- assert_eq!("array", dd.value(5));
- assert_eq!("2.4", dd.value(6));
+ let mut file = File::open("test/data/mixed_arrays.json.gz").unwrap();
Review comment:
That would be great. I've seen that the C++ and Python libs have a
filesystem interface. Maybe we could add that first, then work from there into
adding mime-type and compression support?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
