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//! Utilities for reading and writing for the Minecraft protocol
mod read;
mod write;
pub use read::{McBufReadable, McBufVarintReadable, Readable};
pub use write::{McBufVarintWritable, McBufWritable, Writable};
// const DEFAULT_NBT_QUOTA: u32 = 2097152;
const MAX_STRING_LENGTH: u16 = 32767;
// const MAX_COMPONENT_STRING_LENGTH: u32 = 262144;
#[cfg(test)]
mod tests {
use super::*;
use azalea_core::resource_location::ResourceLocation;
use std::{collections::HashMap, io::Cursor};
use tokio::io::BufReader;
#[test]
fn test_write_varint() {
let mut buf = Vec::new();
buf.write_varint(123456).unwrap();
assert_eq!(buf, vec![192, 196, 7]);
let mut buf = Vec::new();
buf.write_varint(0).unwrap();
assert_eq!(buf, vec![0]);
}
#[tokio::test]
async fn test_read_varint() {
let mut buf = BufReader::new(Cursor::new(vec![192, 196, 7]));
assert_eq!(buf.read_varint().await.unwrap(), 123456);
assert_eq!(buf.get_varint_size(123456), 3);
let mut buf = BufReader::new(Cursor::new(vec![0]));
assert_eq!(buf.read_varint().await.unwrap(), 0);
assert_eq!(buf.get_varint_size(0), 1);
let mut buf = BufReader::new(Cursor::new(vec![1]));
assert_eq!(buf.read_varint().await.unwrap(), 1);
assert_eq!(buf.get_varint_size(1), 1);
}
#[tokio::test]
async fn test_read_varint_longer() {
let mut buf = BufReader::new(Cursor::new(vec![138, 56, 0, 135, 56, 123]));
assert_eq!(buf.read_varint().await.unwrap(), 7178);
}
#[tokio::test]
async fn test_list() {
let mut buf = Vec::new();
buf.write_list(&vec!["a", "bc", "def"], |buf, s| buf.write_utf(s))
.unwrap();
// there's no read_list because idk how to do it in rust
let mut buf = BufReader::new(Cursor::new(buf));
let mut result = Vec::new();
let length = buf.read_varint().await.unwrap();
for _ in 0..length {
result.push(buf.read_utf().await.unwrap());
}
assert_eq!(result, vec!["a", "bc", "def"]);
}
#[tokio::test]
async fn test_int_id_list() {
let mut buf = Vec::new();
buf.write_list(&vec![1, 2, 3], |buf, i| buf.write_varint(*i))
.unwrap();
let mut buf = BufReader::new(Cursor::new(buf));
let result = buf.read_int_id_list().await.unwrap();
assert_eq!(result, vec![1, 2, 3]);
}
#[tokio::test]
async fn test_map() {
let mut buf = Vec::new();
buf.write_map(
vec![("a", 1), ("bc", 23), ("def", 456)],
Vec::write_utf,
Vec::write_varint,
)
.unwrap();
let mut buf = BufReader::new(Cursor::new(buf));
let mut result = Vec::new();
let length = buf.read_varint().await.unwrap();
for _ in 0..length {
result.push((
buf.read_utf().await.unwrap(),
buf.read_varint().await.unwrap(),
));
}
assert_eq!(
result,
vec![
("a".to_string(), 1),
("bc".to_string(), 23),
("def".to_string(), 456)
]
);
}
#[tokio::test]
async fn test_nbt() {
let mut buf = Vec::new();
buf.write_nbt(&azalea_nbt::Tag::Compound(HashMap::from_iter(vec![(
"hello world".to_string(),
azalea_nbt::Tag::Compound(HashMap::from_iter(vec![(
"name".to_string(),
azalea_nbt::Tag::String("Bananrama".to_string()),
)])),
)])))
.unwrap();
let mut buf = BufReader::new(Cursor::new(buf));
let result = buf.read_nbt().await.unwrap();
assert_eq!(
result,
azalea_nbt::Tag::Compound(HashMap::from_iter(vec![(
"hello world".to_string(),
azalea_nbt::Tag::Compound(HashMap::from_iter(vec![(
"name".to_string(),
azalea_nbt::Tag::String("Bananrama".to_string()),
)])),
)]))
);
}
#[tokio::test]
async fn test_long() {
let mut buf = Vec::new();
buf.write_long(123456).unwrap();
let mut buf = BufReader::new(Cursor::new(buf));
assert_eq!(buf.read_long().await.unwrap(), 123456);
}
#[tokio::test]
async fn test_resource_location() {
let mut buf = Vec::new();
buf.write_resource_location(&ResourceLocation::new("minecraft:dirt").unwrap())
.unwrap();
let mut buf = BufReader::new(Cursor::new(buf));
assert_eq!(
buf.read_resource_location().await.unwrap(),
ResourceLocation::new("minecraft:dirt").unwrap()
);
}
}
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