cdrs 2.2.0

Cassandra DB driver written in Rust
Documentation 
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use std::collections::HashMap;
use std::io::Cursor;

use crate::error;
use crate::frame::FromCursor;
use crate::types::{cursor_next_value, try_from_bytes, CString, CStringList, SHORT_LEN};

#[derive(Debug)]
pub struct BodyResSupported {
  pub data: HashMap<String, Vec<String>>,
}

impl FromCursor for BodyResSupported {
  fn from_cursor(mut cursor: &mut Cursor<&[u8]>) -> error::Result<BodyResSupported> {
    let l = try_from_bytes(cursor_next_value(&mut cursor, SHORT_LEN as u64)?.as_slice())? as usize;
    let mut data: HashMap<String, Vec<String>> = HashMap::with_capacity(l);
    for _ in 0..l {
      let name = CString::from_cursor(&mut cursor)?.into_plain();
      let val = CStringList::from_cursor(&mut cursor)?.into_plain();
      data.insert(name, val);
    }

    Ok(BodyResSupported { data: data })
  }
}

#[cfg(test)]
mod tests {
  use super::*;
  use crate::frame::traits::FromCursor;
  use std::io::Cursor;

  #[test]
  fn test_name() {
    let bytes = [
      0, 1, // n options
      // 1-st option
      0, 2, 97, 98, // key [string] "ab"
      0, 2, 0, 1, 97, 0, 1, 98, /* value ["a", "b"] */
    ];
    let mut cursor: Cursor<&[u8]> = Cursor::new(&bytes);
    let options = BodyResSupported::from_cursor(&mut cursor).unwrap().data;
    assert_eq!(options.len(), 1);
    let option_ab = options.get(&"ab".to_string()).unwrap();
    assert_eq!(option_ab[0], "a".to_string());
    assert_eq!(option_ab[1], "b".to_string());
  }
}