serde/serde_tests/tests/test_bytes.rs
Erick Tryzelaar 8fa40fe7e1 Move json into it's own crate
Not everyone needs json, so no reason to force people to build
it.
2015-07-22 10:44:43 -07:00

210 lines
5.0 KiB
Rust

use serde;
use serde::Serialize;
use serde::bytes::{ByteBuf, Bytes};
use serde_json;
///////////////////////////////////////////////////////////////////////////////
#[derive(Debug, PartialEq)]
struct Error;
impl serde::de::Error for Error {
fn syntax_error() -> Error { Error }
fn end_of_stream_error() -> Error { Error }
fn unknown_field_error(_field: &str) -> Error { Error }
fn missing_field_error(_field: &'static str) -> Error { Error }
}
///////////////////////////////////////////////////////////////////////////////
struct BytesSerializer {
bytes: Vec<u8>,
}
impl BytesSerializer {
fn new(bytes: Vec<u8>) -> Self {
BytesSerializer {
bytes: bytes,
}
}
}
impl serde::Serializer for BytesSerializer {
type Error = Error;
fn visit_unit(&mut self) -> Result<(), Error> {
Err(Error)
}
fn visit_bool(&mut self, _v: bool) -> Result<(), Error> {
Err(Error)
}
fn visit_i64(&mut self, _v: i64) -> Result<(), Error> {
Err(Error)
}
fn visit_u64(&mut self, _v: u64) -> Result<(), Error> {
Err(Error)
}
fn visit_f32(&mut self, _v: f32) -> Result<(), Error> {
Err(Error)
}
fn visit_f64(&mut self, _v: f64) -> Result<(), Error> {
Err(Error)
}
fn visit_char(&mut self, _v: char) -> Result<(), Error> {
Err(Error)
}
fn visit_str(&mut self, _v: &str) -> Result<(), Error> {
Err(Error)
}
fn visit_none(&mut self) -> Result<(), Error> {
Err(Error)
}
fn visit_some<V>(&mut self, _value: V) -> Result<(), Error>
where V: serde::Serialize,
{
Err(Error)
}
fn visit_seq<V>(&mut self, _visitor: V) -> Result<(), Error>
where V: serde::ser::SeqVisitor,
{
Err(Error)
}
fn visit_seq_elt<T>(&mut self, _value: T) -> Result<(), Error>
where T: serde::Serialize
{
Err(Error)
}
fn visit_map<V>(&mut self, _visitor: V) -> Result<(), Error>
where V: serde::ser::MapVisitor,
{
Err(Error)
}
fn visit_map_elt<K, V>(&mut self, _key: K, _value: V) -> Result<(), Error>
where K: serde::Serialize,
V: serde::Serialize,
{
Err(Error)
}
fn visit_bytes(&mut self, bytes: &[u8]) -> Result<(), Error> {
assert_eq!(self.bytes, bytes);
Ok(())
}
}
///////////////////////////////////////////////////////////////////////////////
struct BytesDeserializer {
bytes: Option<Vec<u8>>,
}
impl BytesDeserializer {
fn new(bytes: Vec<u8>) -> Self {
BytesDeserializer {
bytes: Some(bytes),
}
}
}
impl serde::Deserializer for BytesDeserializer {
type Error = Error;
fn visit<V>(&mut self, _visitor: V) -> Result<V::Value, Error>
where V: serde::de::Visitor,
{
Err(Error)
}
fn visit_bytes<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
where V: serde::de::Visitor,
{
visitor.visit_byte_buf(self.bytes.take().unwrap())
}
}
///////////////////////////////////////////////////////////////////////////////
#[test]
fn test_bytes_ser_json() {
let buf = vec![];
let bytes = Bytes::from(&buf);
assert_eq!(serde_json::to_string(&bytes).unwrap(), "[]".to_string());
let buf = vec![1, 2, 3];
let bytes = Bytes::from(&buf);
assert_eq!(serde_json::to_string(&bytes).unwrap(), "[1,2,3]".to_string());
}
#[test]
fn test_bytes_ser_bytes() {
let buf = vec![];
let bytes = Bytes::from(&buf);
let mut ser = BytesSerializer::new(vec![]);
bytes.serialize(&mut ser).unwrap();
let buf = vec![1, 2, 3];
let bytes = Bytes::from(&buf);
let mut ser = BytesSerializer::new(vec![1, 2, 3]);
bytes.serialize(&mut ser).unwrap();
}
#[test]
fn test_byte_buf_ser_json() {
let bytes = ByteBuf::new();
assert_eq!(serde_json::to_string(&bytes).unwrap(), "[]".to_string());
let bytes = ByteBuf::from(vec![1, 2, 3]);
assert_eq!(serde_json::to_string(&bytes).unwrap(), "[1,2,3]".to_string());
}
#[test]
fn test_byte_buf_ser_bytes() {
let bytes = ByteBuf::new();
let mut ser = BytesSerializer::new(vec![]);
bytes.serialize(&mut ser).unwrap();
let bytes = ByteBuf::from(vec![1, 2, 3]);
let mut ser = BytesSerializer::new(vec![1, 2, 3]);
bytes.serialize(&mut ser).unwrap();
}
///////////////////////////////////////////////////////////////////////////////
#[test]
fn test_byte_buf_de_json() {
let bytes = ByteBuf::new();
let v: ByteBuf = serde_json::from_str("[]").unwrap();
assert_eq!(v, bytes);
let bytes = ByteBuf::from(vec![1, 2, 3]);
let v: ByteBuf = serde_json::from_str("[1, 2, 3]").unwrap();
assert_eq!(v, bytes);
}
#[test]
fn test_byte_buf_de_bytes() {
let mut de = BytesDeserializer::new(vec![]);
let bytes = serde::Deserialize::deserialize(&mut de);
assert_eq!(bytes, Ok(ByteBuf::new()));
let mut de = BytesDeserializer::new(vec![1, 2, 3]);
let bytes = serde::Deserialize::deserialize(&mut de);
assert_eq!(bytes, Ok(ByteBuf::from(vec![1, 2, 3])));
}