summaryrefslogtreecommitdiff
path: root/src/protocol/wire_format.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/protocol/wire_format.rs')
-rw-r--r--src/protocol/wire_format.rs704
1 files changed, 0 insertions, 704 deletions
diff --git a/src/protocol/wire_format.rs b/src/protocol/wire_format.rs
deleted file mode 100644
index 7120937..0000000
--- a/src/protocol/wire_format.rs
+++ /dev/null
@@ -1,704 +0,0 @@
-// Copyright 2018 The Chromium OS Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-use std::fmt;
-use std::io;
-use std::io::{ErrorKind, Read, Write};
-use std::mem;
-use std::ops::{Deref, DerefMut};
-use std::string::String;
-use std::vec::Vec;
-
-/// A type that can be encoded on the wire using the 9P protocol.
-pub trait WireFormat: std::marker::Sized {
- /// Returns the number of bytes necessary to fully encode `self`.
- fn byte_size(&self) -> u32;
-
- /// Encodes `self` into `writer`.
- fn encode<W: Write>(&self, writer: &mut W) -> io::Result<()>;
-
- /// Decodes `Self` from `reader`.
- fn decode<R: Read>(reader: &mut R) -> io::Result<Self>;
-}
-
-// This doesn't really _need_ to be a macro but unfortunately there is no trait bound to
-// express "can be casted to another type", which means we can't write `T as u8` in a trait
-// based implementation. So instead we have this macro, which is implemented for all the
-// stable unsigned types with the added benefit of not being implemented for the signed
-// types which are not allowed by the protocol.
-macro_rules! uint_wire_format_impl {
- ($Ty:ty) => {
- impl WireFormat for $Ty {
- fn byte_size(&self) -> u32 {
- mem::size_of::<$Ty>() as u32
- }
-
- fn encode<W: Write>(&self, writer: &mut W) -> io::Result<()> {
- let mut buf = [0u8; mem::size_of::<$Ty>()];
-
- // Encode the bytes into the buffer in little endian order.
- for idx in 0..mem::size_of::<$Ty>() {
- buf[idx] = (self >> (8 * idx)) as u8;
- }
-
- writer.write_all(&buf)
- }
-
- fn decode<R: Read>(reader: &mut R) -> io::Result<Self> {
- let mut buf = [0u8; mem::size_of::<$Ty>()];
- reader.read_exact(&mut buf)?;
-
- // Read bytes from the buffer in little endian order.
- let mut result = 0;
- for idx in 0..mem::size_of::<$Ty>() {
- result |= (buf[idx] as $Ty) << (8 * idx);
- }
-
- Ok(result)
- }
- }
- };
-}
-uint_wire_format_impl!(u8);
-uint_wire_format_impl!(u16);
-uint_wire_format_impl!(u32);
-uint_wire_format_impl!(u64);
-
-// The 9P protocol requires that strings are UTF-8 encoded. The wire format is a u16
-// count |N|, encoded in little endian, followed by |N| bytes of UTF-8 data.
-impl WireFormat for String {
- fn byte_size(&self) -> u32 {
- (mem::size_of::<u16>() + self.len()) as u32
- }
-
- fn encode<W: Write>(&self, writer: &mut W) -> io::Result<()> {
- if self.len() > std::u16::MAX as usize {
- return Err(io::Error::new(
- ErrorKind::InvalidInput,
- "string is too long",
- ));
- }
-
- (self.len() as u16).encode(writer)?;
- writer.write_all(self.as_bytes())
- }
-
- fn decode<R: Read>(reader: &mut R) -> io::Result<Self> {
- let len: u16 = WireFormat::decode(reader)?;
- let mut result = String::with_capacity(len as usize);
- reader.take(len as u64).read_to_string(&mut result)?;
- Ok(result)
- }
-}
-
-// The wire format for repeated types is similar to that of strings: a little endian
-// encoded u16 |N|, followed by |N| instances of the given type.
-impl<T: WireFormat> WireFormat for Vec<T> {
- fn byte_size(&self) -> u32 {
- mem::size_of::<u16>() as u32 + self.iter().map(|elem| elem.byte_size()).sum::<u32>()
- }
-
- fn encode<W: Write>(&self, writer: &mut W) -> io::Result<()> {
- if self.len() > std::u16::MAX as usize {
- return Err(io::Error::new(
- ErrorKind::InvalidInput,
- "too many elements in vector",
- ));
- }
-
- (self.len() as u16).encode(writer)?;
- for elem in self {
- elem.encode(writer)?;
- }
-
- Ok(())
- }
-
- fn decode<R: Read>(reader: &mut R) -> io::Result<Self> {
- let len: u16 = WireFormat::decode(reader)?;
- let mut result = Vec::with_capacity(len as usize);
-
- for _ in 0..len {
- result.push(WireFormat::decode(reader)?);
- }
-
- Ok(result)
- }
-}
-
-/// A type that encodes an arbitrary number of bytes of data. Typically used for Rread
-/// Twrite messages. This differs from a `Vec<u8>` in that it encodes the number of bytes
-/// using a `u32` instead of a `u16`.
-#[derive(PartialEq)]
-pub struct Data(pub Vec<u8>);
-
-// The maximum length of a data buffer that we support. In practice the server's max message
-// size should prevent us from reading too much data so this check is mainly to ensure a
-// malicious client cannot trick us into allocating massive amounts of memory.
-const MAX_DATA_LENGTH: u32 = 32 * 1024 * 1024;
-
-impl fmt::Debug for Data {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- // There may be a lot of data and we don't want to spew it all out in a trace. Instead
- // just print out the number of bytes in the buffer.
- write!(f, "Data({} bytes)", self.len())
- }
-}
-
-// Implement Deref and DerefMut so that we don't have to use self.0 everywhere.
-impl Deref for Data {
- type Target = Vec<u8>;
- fn deref(&self) -> &Self::Target {
- &self.0
- }
-}
-impl DerefMut for Data {
- fn deref_mut(&mut self) -> &mut Self::Target {
- &mut self.0
- }
-}
-
-// Same as Vec<u8> except that it encodes the length as a u32 instead of a u16.
-impl WireFormat for Data {
- fn byte_size(&self) -> u32 {
- mem::size_of::<u32>() as u32 + self.iter().map(|elem| elem.byte_size()).sum::<u32>()
- }
-
- fn encode<W: Write>(&self, writer: &mut W) -> io::Result<()> {
- if self.len() > std::u32::MAX as usize {
- return Err(io::Error::new(ErrorKind::InvalidInput, "data is too large"));
- }
- (self.len() as u32).encode(writer)?;
- writer.write_all(self)
- }
-
- fn decode<R: Read>(reader: &mut R) -> io::Result<Self> {
- let len: u32 = WireFormat::decode(reader)?;
- if len > MAX_DATA_LENGTH {
- return Err(io::Error::new(
- ErrorKind::InvalidData,
- format!("data length ({} bytes) is too large", len),
- ));
- }
-
- let mut buf = Vec::with_capacity(len as usize);
- reader.take(len as u64).read_to_end(&mut buf)?;
-
- if buf.len() == len as usize {
- Ok(Data(buf))
- } else {
- Err(io::Error::new(
- ErrorKind::UnexpectedEof,
- format!(
- "unexpected end of data: want: {} bytes, got: {} bytes",
- len,
- buf.len()
- ),
- ))
- }
- }
-}
-
-#[cfg(test)]
-mod test {
- use super::*;
- use std::io::Cursor;
- use std::mem;
- use std::string::String;
-
- #[test]
- fn integer_byte_size() {
- assert_eq!(1, 0u8.byte_size());
- assert_eq!(2, 0u16.byte_size());
- assert_eq!(4, 0u32.byte_size());
- assert_eq!(8, 0u64.byte_size());
- }
-
- #[test]
- fn integer_decode() {
- let buf: [u8; 8] = [0xef, 0xbe, 0xad, 0xde, 0x0d, 0xf0, 0xad, 0x8b];
-
- assert_eq!(
- 0xef as u8,
- WireFormat::decode(&mut Cursor::new(&buf)).unwrap()
- );
- assert_eq!(0xbeef as u16, u16::decode(&mut Cursor::new(&buf)).unwrap());
- assert_eq!(
- 0xdeadbeef as u32,
- u32::decode(&mut Cursor::new(&buf)).unwrap()
- );
- assert_eq!(
- 0x8badf00d_deadbeef as u64,
- u64::decode(&mut Cursor::new(&buf)).unwrap()
- );
- }
-
- #[test]
- fn integer_encode() {
- let value: u64 = 0x8badf00d_deadbeef;
- let expected: [u8; 8] = [0xef, 0xbe, 0xad, 0xde, 0x0d, 0xf0, 0xad, 0x8b];
-
- let mut buf = vec![0; 8];
-
- (value as u8).encode(&mut Cursor::new(&mut *buf)).unwrap();
- assert_eq!(expected[0..1], buf[0..1]);
-
- (value as u16).encode(&mut Cursor::new(&mut *buf)).unwrap();
- assert_eq!(expected[0..2], buf[0..2]);
-
- (value as u32).encode(&mut Cursor::new(&mut *buf)).unwrap();
- assert_eq!(expected[0..4], buf[0..4]);
-
- value.encode(&mut Cursor::new(&mut *buf)).unwrap();
- assert_eq!(expected[0..8], buf[0..8]);
- }
-
- #[test]
- fn string_byte_size() {
- let values = [
- String::from("Google Video"),
- String::from("网页 图片 资讯更多 »"),
- String::from("Παγκόσμιος Ιστός"),
- String::from("Поиск страниц на русском"),
- String::from("전체서비스"),
- ];
-
- let exp = values
- .iter()
- .map(|v| (mem::size_of::<u16>() + v.len()) as u32);
-
- for (value, expected) in values.iter().zip(exp) {
- assert_eq!(expected, value.byte_size());
- }
- }
-
- #[test]
- fn zero_length_string() {
- let s = String::from("");
- assert_eq!(s.byte_size(), mem::size_of::<u16>() as u32);
-
- let mut buf = [0xffu8; 4];
-
- s.encode(&mut Cursor::new(&mut buf[..]))
- .expect("failed to encode empty string");
- assert_eq!(&[0, 0, 0xff, 0xff], &buf);
-
- assert_eq!(
- s,
- <String as WireFormat>::decode(&mut Cursor::new(&[0, 0, 0x61, 0x61][..]))
- .expect("failed to decode empty string")
- );
- }
-
- #[test]
- fn string_encode() {
- let values = [
- String::from("Google Video"),
- String::from("网页 图片 资讯更多 »"),
- String::from("Παγκόσμιος Ιστός"),
- String::from("Поиск страниц на русском"),
- String::from("전체서비스"),
- ];
-
- let expected = values.iter().map(|v| {
- let len = v.as_bytes().len();
- let mut buf = Vec::with_capacity(len + mem::size_of::<u16>());
-
- buf.push(len as u8);
- buf.push((len >> 8) as u8);
-
- buf.extend_from_slice(v.as_bytes());
-
- buf
- });
-
- for (val, exp) in values.iter().zip(expected) {
- let mut buf = vec![0; exp.len()];
-
- WireFormat::encode(val, &mut Cursor::new(&mut *buf)).unwrap();
- assert_eq!(exp, buf);
- }
- }
-
- #[test]
- fn string_decode() {
- assert_eq!(
- String::from("Google Video"),
- <String as WireFormat>::decode(&mut Cursor::new(
- &[
- 0x0c, 0x00, 0x47, 0x6F, 0x6F, 0x67, 0x6C, 0x65, 0x20, 0x56, 0x69, 0x64, 0x65,
- 0x6F,
- ][..]
- ))
- .unwrap()
- );
- assert_eq!(
- String::from("网页 图片 资讯更多 »"),
- <String as WireFormat>::decode(&mut Cursor::new(
- &[
- 0x1d, 0x00, 0xE7, 0xBD, 0x91, 0xE9, 0xA1, 0xB5, 0x20, 0xE5, 0x9B, 0xBE, 0xE7,
- 0x89, 0x87, 0x20, 0xE8, 0xB5, 0x84, 0xE8, 0xAE, 0xAF, 0xE6, 0x9B, 0xB4, 0xE5,
- 0xA4, 0x9A, 0x20, 0xC2, 0xBB,
- ][..]
- ))
- .unwrap()
- );
- assert_eq!(
- String::from("Παγκόσμιος Ιστός"),
- <String as WireFormat>::decode(&mut Cursor::new(
- &[
- 0x1f, 0x00, 0xCE, 0xA0, 0xCE, 0xB1, 0xCE, 0xB3, 0xCE, 0xBA, 0xCF, 0x8C, 0xCF,
- 0x83, 0xCE, 0xBC, 0xCE, 0xB9, 0xCE, 0xBF, 0xCF, 0x82, 0x20, 0xCE, 0x99, 0xCF,
- 0x83, 0xCF, 0x84, 0xCF, 0x8C, 0xCF, 0x82,
- ][..]
- ))
- .unwrap()
- );
- assert_eq!(
- String::from("Поиск страниц на русском"),
- <String as WireFormat>::decode(&mut Cursor::new(
- &[
- 0x2d, 0x00, 0xD0, 0x9F, 0xD0, 0xBE, 0xD0, 0xB8, 0xD1, 0x81, 0xD0, 0xBA, 0x20,
- 0xD1, 0x81, 0xD1, 0x82, 0xD1, 0x80, 0xD0, 0xB0, 0xD0, 0xBD, 0xD0, 0xB8, 0xD1,
- 0x86, 0x20, 0xD0, 0xBD, 0xD0, 0xB0, 0x20, 0xD1, 0x80, 0xD1, 0x83, 0xD1, 0x81,
- 0xD1, 0x81, 0xD0, 0xBA, 0xD0, 0xBE, 0xD0, 0xBC,
- ][..]
- ))
- .unwrap()
- );
- assert_eq!(
- String::from("전체서비스"),
- <String as WireFormat>::decode(&mut Cursor::new(
- &[
- 0x0f, 0x00, 0xEC, 0xA0, 0x84, 0xEC, 0xB2, 0xB4, 0xEC, 0x84, 0x9C, 0xEB, 0xB9,
- 0x84, 0xEC, 0x8A, 0xA4,
- ][..]
- ))
- .unwrap()
- );
- }
-
- #[test]
- fn invalid_string_decode() {
- let _ = <String as WireFormat>::decode(&mut Cursor::new(&[
- 0x06, 0x00, 0xed, 0xa0, 0x80, 0xed, 0xbf, 0xbf,
- ]))
- .expect_err("surrogate code point");
-
- let _ = <String as WireFormat>::decode(&mut Cursor::new(&[
- 0x05, 0x00, 0xf8, 0x80, 0x80, 0x80, 0xbf,
- ]))
- .expect_err("overlong sequence");
-
- let _ =
- <String as WireFormat>::decode(&mut Cursor::new(&[0x04, 0x00, 0xf4, 0x90, 0x80, 0x80]))
- .expect_err("out of range");
-
- let _ =
- <String as WireFormat>::decode(&mut Cursor::new(&[0x04, 0x00, 0x63, 0x61, 0x66, 0xe9]))
- .expect_err("ISO-8859-1");
-
- let _ =
- <String as WireFormat>::decode(&mut Cursor::new(&[0x04, 0x00, 0xb0, 0xa1, 0xb0, 0xa2]))
- .expect_err("EUC-KR");
- }
-
- #[test]
- fn vector_encode() {
- let values: Vec<u32> = vec![291, 18_916, 2_497, 22, 797_162, 2_119_732, 3_213_929_716];
- let mut expected: Vec<u8> =
- Vec::with_capacity(values.len() * mem::size_of::<u32>() + mem::size_of::<u16>());
- expected.push(values.len() as u8);
- expected.push((values.len() >> 8) as u8);
-
- const MASK: u32 = 0xff;
- for val in &values {
- expected.push((val & MASK) as u8);
- expected.push(((val >> 8) & MASK) as u8);
- expected.push(((val >> 16) & MASK) as u8);
- expected.push(((val >> 24) & MASK) as u8);
- }
-
- let mut actual: Vec<u8> = vec![0; expected.len()];
-
- WireFormat::encode(&values, &mut Cursor::new(&mut *actual))
- .expect("failed to encode vector");
- assert_eq!(expected, actual);
- }
-
- #[test]
- fn vector_decode() {
- let expected: Vec<u32> = vec![
- 2_498,
- 24,
- 897,
- 4_097_789_579,
- 8_498_119,
- 684_279,
- 961_189_198,
- 7,
- ];
- let mut input: Vec<u8> =
- Vec::with_capacity(expected.len() * mem::size_of::<u32>() + mem::size_of::<u16>());
- input.push(expected.len() as u8);
- input.push((expected.len() >> 8) as u8);
-
- const MASK: u32 = 0xff;
- for val in &expected {
- input.push((val & MASK) as u8);
- input.push(((val >> 8) & MASK) as u8);
- input.push(((val >> 16) & MASK) as u8);
- input.push(((val >> 24) & MASK) as u8);
- }
-
- assert_eq!(
- expected,
- <Vec<u32> as WireFormat>::decode(&mut Cursor::new(&*input))
- .expect("failed to decode vector")
- );
- }
-
- #[test]
- fn data_encode() {
- let values = Data(vec![169, 155, 79, 67, 182, 199, 25, 73, 129, 200]);
- let mut expected: Vec<u8> =
- Vec::with_capacity(values.len() * mem::size_of::<u8>() + mem::size_of::<u32>());
- expected.push(values.len() as u8);
- expected.push((values.len() >> 8) as u8);
- expected.push((values.len() >> 16) as u8);
- expected.push((values.len() >> 24) as u8);
- expected.extend_from_slice(&values);
-
- let mut actual: Vec<u8> = vec![0; expected.len()];
-
- WireFormat::encode(&values, &mut Cursor::new(&mut *actual))
- .expect("failed to encode datar");
- assert_eq!(expected, actual);
- }
-
- #[test]
- fn data_decode() {
- let expected = Data(vec![219, 15, 8, 155, 194, 129, 79, 91, 46, 53, 173]);
- let mut input: Vec<u8> =
- Vec::with_capacity(expected.len() * mem::size_of::<u8>() + mem::size_of::<u32>());
- input.push(expected.len() as u8);
- input.push((expected.len() >> 8) as u8);
- input.push((expected.len() >> 16) as u8);
- input.push((expected.len() >> 24) as u8);
- input.extend_from_slice(&expected);
-
- assert_eq!(
- expected,
- <Data as WireFormat>::decode(&mut Cursor::new(&mut *input))
- .expect("failed to decode data")
- );
- }
-
- #[test]
- fn error_cases() {
- // string is too long.
- let mut long_str = String::with_capacity(std::u16::MAX as usize);
- while long_str.len() < std::u16::MAX as usize {
- long_str.push_str("long");
- }
- long_str.push_str("!");
-
- let count = long_str.len() + mem::size_of::<u16>();
- let mut buf = vec![0; count];
-
- long_str
- .encode(&mut Cursor::new(&mut *buf))
- .expect_err("long string");
-
- // vector is too long.
- let mut long_vec: Vec<u32> = Vec::with_capacity(std::u16::MAX as usize);
- while long_vec.len() < std::u16::MAX as usize {
- long_vec.push(0x8bad_f00d);
- }
- long_vec.push(0x00ba_b10c);
-
- let count = long_vec.len() * mem::size_of::<u32>();
- let mut buf = vec![0; count];
-
- WireFormat::encode(&long_vec, &mut Cursor::new(&mut *buf)).expect_err("long vector");
- }
-
- #[derive(Debug, PartialEq, P9WireFormat)]
- struct Item {
- a: u64,
- b: String,
- c: Vec<u16>,
- buf: Data,
- }
-
- #[test]
- fn struct_encode() {
- let item = Item {
- a: 0xdead10cc_00bab10c,
- b: String::from("冻住,不许走!"),
- c: vec![359, 492, 8891],
- buf: Data(vec![254, 129, 0, 62, 49, 172]),
- };
-
- let mut expected: Vec<u8> = vec![0x0c, 0xb1, 0xba, 0x00, 0xcc, 0x10, 0xad, 0xde];
- let strlen = item.b.len() as u16;
- expected.push(strlen as u8);
- expected.push((strlen >> 8) as u8);
- expected.extend_from_slice(item.b.as_bytes());
-
- let veclen = item.c.len() as u16;
- expected.push(veclen as u8);
- expected.push((veclen >> 8) as u8);
- for val in &item.c {
- expected.push(*val as u8);
- expected.push((val >> 8) as u8);
- }
-
- let buflen = item.buf.len() as u32;
- expected.push(buflen as u8);
- expected.push((buflen >> 8) as u8);
- expected.push((buflen >> 16) as u8);
- expected.push((buflen >> 24) as u8);
- expected.extend_from_slice(&item.buf);
-
- let mut actual = vec![0; expected.len()];
-
- WireFormat::encode(&item, &mut Cursor::new(&mut *actual)).expect("failed to encode item");
-
- assert_eq!(expected, actual);
- }
-
- #[test]
- fn struct_decode() {
- let expected = Item {
- a: 0xface_b00c_0404_4b1d,
- b: String::from("Огонь по готовности!"),
- c: vec![20067, 32449, 549, 4972, 77, 1987],
- buf: Data(vec![126, 236, 79, 59, 6, 159]),
- };
-
- let mut input: Vec<u8> = vec![0x1d, 0x4b, 0x04, 0x04, 0x0c, 0xb0, 0xce, 0xfa];
- let strlen = expected.b.len() as u16;
- input.push(strlen as u8);
- input.push((strlen >> 8) as u8);
- input.extend_from_slice(expected.b.as_bytes());
-
- let veclen = expected.c.len() as u16;
- input.push(veclen as u8);
- input.push((veclen >> 8) as u8);
- for val in &expected.c {
- input.push(*val as u8);
- input.push((val >> 8) as u8);
- }
-
- let buflen = expected.buf.len() as u32;
- input.push(buflen as u8);
- input.push((buflen >> 8) as u8);
- input.push((buflen >> 16) as u8);
- input.push((buflen >> 24) as u8);
- input.extend_from_slice(&expected.buf);
-
- let actual: Item =
- WireFormat::decode(&mut Cursor::new(input)).expect("failed to decode item");
-
- assert_eq!(expected, actual);
- }
-
- #[derive(Debug, PartialEq, P9WireFormat)]
- struct Nested {
- item: Item,
- val: Vec<u64>,
- }
-
- fn build_encoded_buffer(value: &Nested) -> Vec<u8> {
- let mut result: Vec<u8> = Vec::new();
-
- // encode a
- result.push(value.item.a as u8);
- result.push((value.item.a >> 8) as u8);
- result.push((value.item.a >> 16) as u8);
- result.push((value.item.a >> 24) as u8);
- result.push((value.item.a >> 32) as u8);
- result.push((value.item.a >> 40) as u8);
- result.push((value.item.a >> 48) as u8);
- result.push((value.item.a >> 56) as u8);
-
- // encode b
- result.push(value.item.b.len() as u8);
- result.push((value.item.b.len() >> 8) as u8);
- result.extend_from_slice(value.item.b.as_bytes());
-
- // encode c
- result.push(value.item.c.len() as u8);
- result.push((value.item.c.len() >> 8) as u8);
- for val in &value.item.c {
- result.push((val & 0xffu16) as u8);
- result.push(((val >> 8) & 0xffu16) as u8);
- }
-
- // encode buf
- result.push(value.item.buf.len() as u8);
- result.push((value.item.buf.len() >> 8) as u8);
- result.push((value.item.buf.len() >> 16) as u8);
- result.push((value.item.buf.len() >> 24) as u8);
- result.extend_from_slice(&value.item.buf);
-
- // encode val
- result.push(value.val.len() as u8);
- result.push((value.val.len() >> 8) as u8);
- for val in &value.val {
- result.push(*val as u8);
- result.push((val >> 8) as u8);
- result.push((val >> 16) as u8);
- result.push((val >> 24) as u8);
- result.push((val >> 32) as u8);
- result.push((val >> 40) as u8);
- result.push((val >> 48) as u8);
- result.push((val >> 56) as u8);
- }
-
- result
- }
-
- #[test]
- fn nested_encode() {
- let value = Nested {
- item: Item {
- a: 0xcafe_d00d_8bad_f00d,
- b: String::from("龍が我が敵を喰らう!"),
- c: vec![2679, 55_919, 44, 38_819, 792],
- buf: Data(vec![129, 55, 200, 93, 7, 68]),
- },
- val: vec![1954978, 59, 4519, 15679],
- };
-
- let expected = build_encoded_buffer(&value);
-
- let mut actual = vec![0; expected.len()];
-
- WireFormat::encode(&value, &mut Cursor::new(&mut *actual)).expect("failed to encode value");
- assert_eq!(expected, actual);
- }
-
- #[test]
- fn nested_decode() {
- let expected = Nested {
- item: Item {
- a: 0x0ff1ce,
- b: String::from("龍神の剣を喰らえ!"),
- c: vec![21687, 159, 55, 9217, 192],
- buf: Data(vec![189, 22, 7, 59, 235]),
- },
- val: vec![15679, 8619196, 319746, 123957, 77, 0, 492],
- };
-
- let input = build_encoded_buffer(&expected);
-
- assert_eq!(
- expected,
- <Nested as WireFormat>::decode(&mut Cursor::new(&*input))
- .expect("failed to decode value")
- );
- }
-}