use crate::runtime::streaming::StreamingLineReader;
use crate::runtime::streaming::MAX_BUFFER_SIZE;
use std::io::{BufRead, Cursor};
#[test]
fn test_streaming_line_reader_rejects_single_line_larger_than_max_buffer_size() {
let data = vec![b'a'; MAX_BUFFER_SIZE + 1];
let reader = StreamingLineReader::new(Cursor::new(data));
let mut lines = reader.lines();
let first = lines.next().expect("expected one line or an error");
assert!(
first.is_err(),
"expected an error when a single line exceeds MAX_BUFFER_SIZE"
);
}