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|
use super::super::*;
use crate::ReadError::UnexpectedEndOfSlice;
use crate::ip_number::*;
use std::io::Cursor;
pub mod header {
use super::*;
#[test]
fn from_slice() {
let auth_header = IpAuthenticationHeader::new(
UDP,
0,
0,
&[]
).unwrap();
let buffer = {
let mut buffer = Vec::with_capacity(auth_header.header_len());
auth_header.write(&mut buffer).unwrap();
buffer.push(1);
buffer.push(2);
buffer
};
// no auth header
{
let (header, next, rest) = Ipv4Extensions::from_slice(
TCP,
&buffer
).unwrap();
assert!(header.auth.is_none());
assert_eq!(TCP, next);
assert_eq!(rest, &buffer);
}
// with auth header
{
let (actual, next, rest) = Ipv4Extensions::from_slice(
AUTH,
&buffer
).unwrap();
assert_eq!(actual.auth.unwrap(), auth_header);
assert_eq!(UDP, next);
assert_eq!(rest, &buffer[auth_header.header_len()..]);
}
// too small
{
let err = Ipv4Extensions::from_slice(
AUTH,
&buffer[..auth_header.header_len() - 1]
).unwrap_err();
const AUTH_HEADER_LEN: usize = 12;
assert_matches!(
err,
UnexpectedEndOfSlice(AUTH_HEADER_LEN)
);
}
}
proptest! {
#[test]
fn read(auth in ip_authentication_any()) {
// None
{
let mut cursor = Cursor::new(&[]);
let (actual, next) = Ipv4Extensions::read(&mut cursor, UDP).unwrap();
assert_eq!(next, UDP);
assert_eq!(
actual,
Ipv4Extensions{
auth: None,
}
);
}
// Some sucessfull
{
let buffer = {
let mut buffer = Vec::with_capacity(auth.header_len());
auth.write(&mut buffer).unwrap();
buffer.push(1);
buffer
};
let mut cursor = Cursor::new(&buffer);
let (actual, next) = Ipv4Extensions::read(&mut cursor, AUTH).unwrap();
assert_eq!(auth.header_len(), cursor.position() as usize);
assert_eq!(next, auth.next_header);
assert_eq!(
actual,
Ipv4Extensions{
auth: Some(auth.clone()),
}
);
}
// Some error
{
let mut cursor = Cursor::new(&[]);
let err = Ipv4Extensions::read(&mut cursor, AUTH).unwrap_err();
assert_matches!(
err,
ReadError::IoError(_)
);
}
}
}
#[test]
fn write() {
// None
{
let mut buffer = Vec::new();
Ipv4Extensions{
auth: None,
}.write(&mut buffer, UDP).unwrap();
assert_eq!(0, buffer.len());
}
// Some
let auth_header = IpAuthenticationHeader::new(
UDP,
0,
0,
&[]
).unwrap();
{
let mut buffer = Vec::with_capacity(auth_header.header_len());
Ipv4Extensions{
auth: Some(auth_header.clone()),
}.write(&mut buffer, AUTH).unwrap();
let (read_header, _) = IpAuthenticationHeader::from_slice(&buffer).unwrap();
assert_eq!(auth_header, read_header);
}
// Some bad start number
{
let mut buffer = Vec::new();
let err = Ipv4Extensions{
auth: Some(auth_header.clone()),
}.write(&mut buffer, UDP).unwrap_err();
assert_matches!(
err,
WriteError::ValueError(
ValueError::Ipv4ExtensionNotReferenced(
IpNumber::AuthenticationHeader
)
)
);
}
// Some: Write error
{
let mut writer = TestWriter::with_max_size(
auth_header.header_len() - 1
);
let err = Ipv4Extensions{
auth: Some(auth_header.clone()),
}.write(&mut writer, AUTH).unwrap_err();
assert_eq!(
std::io::ErrorKind::UnexpectedEof,
err.io_error().unwrap().kind()
);
}
}
#[test]
fn header_len() {
// None
assert_eq!(
0,
Ipv4Extensions{
auth: None,
}.header_len()
);
// Some
{
let auth = IpAuthenticationHeader::new(
UDP,
0,
0,
&[]
).unwrap();
assert_eq!(
auth.header_len(),
Ipv4Extensions{
auth: Some(auth),
}.header_len()
);
}
// Some with paylaod
{
let auth = IpAuthenticationHeader::new(
UDP,
0,
0,
&[ 1, 2, 3, 4 ]
).unwrap();
assert_eq!(
auth.header_len(),
Ipv4Extensions{
auth: Some(auth),
}.header_len()
);
}
}
#[test]
fn set_next_headers() {
// None
{
let mut exts = Ipv4Extensions{
auth: None,
};
assert_eq!(UDP, exts.set_next_headers(UDP));
}
// Some
{
let mut exts = Ipv4Extensions{
auth: Some(
IpAuthenticationHeader::new(
TCP,
0,
0,
&[]
).unwrap()
),
};
assert_eq!(TCP, exts.auth.as_ref().unwrap().next_header);
// change from TCP to UDP
let re = exts.set_next_headers(UDP);
assert_eq!(AUTH, re);
assert_eq!(UDP, exts.auth.as_ref().unwrap().next_header);
}
}
#[test]
fn next_header() {
// None
{
let exts = Ipv4Extensions{
auth: None,
};
assert_eq!(UDP, exts.next_header(UDP).unwrap());
}
// Some
{
let exts = Ipv4Extensions{
auth: Some(
IpAuthenticationHeader::new(
TCP,
0,
0,
&[]
).unwrap()
),
};
// auth referenced
assert_eq!(TCP, exts.next_header(AUTH).unwrap());
// auth not referenced (error)
assert_eq!(
ValueError::Ipv4ExtensionNotReferenced(
IpNumber::AuthenticationHeader
),
exts.next_header(TCP).unwrap_err()
);
}
}
#[test]
fn is_empty() {
// empty
assert!(
Ipv4Extensions{
auth: None,
}.is_empty()
);
// auth
assert_eq!(
false,
Ipv4Extensions{
auth: Some(IpAuthenticationHeader::new(ip_number::UDP, 0, 0, &[]).unwrap()),
}.is_empty()
);
}
proptest! {
#[test]
fn debug(auth in ip_authentication_any()) {
// None
assert_eq!(
&format!("Ipv4Extensions {{ auth: {:?} }}", Option::<IpAuthenticationHeader>::None),
&format!(
"{:?}",
Ipv4Extensions {
auth: None,
}
)
);
// Some
assert_eq!(
&format!("Ipv4Extensions {{ auth: {:?} }}", Some(auth.clone())),
&format!(
"{:?}",
Ipv4Extensions {
auth: Some(auth.clone()),
}
)
);
}
}
proptest! {
#[test]
fn clone_eq(auth in ip_authentication_any()) {
// None
{
let header = Ipv4Extensions{
auth: None,
};
assert_eq!(
header.clone(),
Ipv4Extensions{
auth: None,
}
);
}
// Some
{
let header = Ipv4Extensions{
auth: Some(auth.clone()),
};
assert_eq!(
header.clone(),
Ipv4Extensions{
auth: Some(auth.clone()),
}
);
}
}
}
} // mod header
mod slice {
use super::*;
proptest! {
#[test]
fn from_slice(auth in ip_authentication_any()) {
// None
{
let buffer = [1,2,3,4];
let (slice, next, rest) = Ipv4ExtensionsSlice::from_slice(UDP, &buffer).unwrap();
assert_eq!(
slice,
Ipv4ExtensionsSlice{
auth: None,
}
);
assert_eq!(next, UDP);
assert_eq!(rest, &buffer);
}
// Some
{
let buffer = {
let mut buffer = Vec::with_capacity(auth.header_len());
auth.write(&mut buffer).unwrap();
// add some data to check the returned rest slice is correct
// and not just nothing
buffer.push(1);
buffer
};
let (slice, next, rest) = Ipv4ExtensionsSlice::from_slice(AUTH, &buffer).unwrap();
assert_eq!(
slice,
Ipv4ExtensionsSlice{
auth: Some(
IpAuthenticationHeaderSlice::from_slice(&buffer).unwrap()
),
}
);
assert_eq!(next, auth.next_header);
assert_eq!(rest, &buffer[auth.header_len()..]);
}
// Error unexpected end of slice
{
let err = Ipv4ExtensionsSlice::from_slice(AUTH, &[]).unwrap_err();
const AUTH_HEADER_LEN: usize = 12;
assert_matches!(
err,
UnexpectedEndOfSlice(AUTH_HEADER_LEN)
);
}
}
}
proptest! {
#[test]
fn to_header(auth in ip_authentication_any()) {
// None
assert_eq!(
Ipv4ExtensionsSlice{
auth: None,
}.to_header(),
Ipv4Extensions{
auth: None,
}
);
// Some
{
let buffer = {
let mut buffer = Vec::with_capacity(auth.header_len());
auth.write(&mut buffer).unwrap();
buffer
};
let slice = Ipv4ExtensionsSlice{
auth: Some(
IpAuthenticationHeaderSlice::from_slice(&buffer).unwrap()
),
};
assert_eq!(
slice.to_header(),
Ipv4Extensions{
auth: Some(auth.clone()),
}
);
}
}
}
#[test]
fn is_empty() {
// empty
assert!(
Ipv4ExtensionsSlice{
auth: None,
}.is_empty()
);
// auth
{
let buffer = {
let auth = IpAuthenticationHeader::new(ip_number::UDP, 0, 0, &[]).unwrap();
let mut buffer = Vec::with_capacity(auth.header_len());
auth.write(&mut buffer).unwrap();
buffer
};
assert_eq!(
false,
Ipv4ExtensionsSlice{
auth: Some(IpAuthenticationHeaderSlice::from_slice(&buffer).unwrap()),
}.is_empty()
);
}
}
proptest! {
#[test]
fn debug(auth in ip_authentication_any()) {
// None
assert_eq!(
&format!("Ipv4ExtensionsSlice {{ auth: {:?} }}", Option::<IpAuthenticationHeader>::None),
&format!(
"{:?}",
Ipv4ExtensionsSlice {
auth: None,
}
)
);
// Some
let buffer = {
let mut buffer = Vec::with_capacity(auth.header_len());
auth.write(&mut buffer).unwrap();
buffer
};
let auth_slice = IpAuthenticationHeaderSlice::from_slice(&buffer).unwrap();
assert_eq!(
&format!("Ipv4ExtensionsSlice {{ auth: {:?} }}", Some(auth_slice.clone())),
&format!(
"{:?}",
Ipv4ExtensionsSlice {
auth: Some(auth_slice.clone()),
}
)
);
}
}
proptest! {
#[test]
fn clone_eq(auth in ip_authentication_any()) {
// None
{
let header = Ipv4ExtensionsSlice{
auth: None,
};
assert_eq!(
header.clone(),
Ipv4ExtensionsSlice{
auth: None,
}
);
}
// Some
{
let buffer = {
let mut buffer = Vec::with_capacity(auth.header_len());
auth.write(&mut buffer).unwrap();
buffer
};
let auth_slice = IpAuthenticationHeaderSlice::from_slice(&buffer).unwrap();
let slice = Ipv4ExtensionsSlice {
auth: Some(auth_slice.clone()),
};
assert_eq!(
slice.clone(),
Ipv4ExtensionsSlice{
auth: Some(auth_slice.clone()),
}
);
}
}
}
}
|
