Function test_scientific_notation_with_inference

arrow-csv/src/reader/mod.rs:1857–1875

()

    #[test]
    fn test_scientific_notation_with_inference() {
        let mut file = File::open("test/data/scientific_notation_test.csv").unwrap();
        let format = Format::default().with_header(false).with_delimiter(b',');

        let (schema, _) = format.infer_schema(&mut file, None).unwrap();
        file.rewind().unwrap();

        let builder = ReaderBuilder::new(Arc::new(schema))
            .with_format(format)
            .with_batch_size(512)
            .with_projection(vec![0, 1]);

        let mut csv = builder.build(file).unwrap();
        let batch = csv.next().unwrap().unwrap();

        let schema = batch.schema();

        assert_eq!(&DataType::Float64, schema.field(0).data_type());
    }

    fn invalid_csv_helper(file_name: &str) -> String {
        let file = File::open(file_name).unwrap();