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fragment_buffer_test.rs
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fragment_buffer_test.rs
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use super::*;
#[test]
fn test_fragment_buffer() -> Result<()> {
let tests = vec![
(
"Single Fragment",
vec![vec![
0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x03,
0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00,
]],
vec![vec![
0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff,
0x00,
]],
0,
),
(
"Single Fragment Epoch 3",
vec![vec![
0x16, 0xfe, 0xff, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x03,
0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00,
]],
vec![vec![
0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff,
0x00,
]],
3,
),
(
"Multiple Fragments",
vec![
vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81,
0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00,
0x01, 0x02, 0x03, 0x04,
],
vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81,
0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x05, 0x05,
0x06, 0x07, 0x08, 0x09,
],
vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81,
0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x05, 0x0A,
0x0B, 0x0C, 0x0D, 0x0E,
],
],
vec![vec![
0x0b, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x01,
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
]],
0,
),
(
"Multiple Unordered Fragments",
vec![
vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81,
0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00,
0x01, 0x02, 0x03, 0x04,
],
vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81,
0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x05, 0x0A,
0x0B, 0x0C, 0x0D, 0x0E,
],
vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x81,
0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x05, 0x05,
0x06, 0x07, 0x08, 0x09,
],
],
vec![vec![
0x0b, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x01,
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
]],
0,
),
(
"Multiple Handshakes in Signle Fragment",
vec![vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
0x30, /* record header */
0x03, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff,
0x01, 0x01, /*handshake msg 1*/
0x03, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff,
0x01, 0x01, /*handshake msg 2*/
0x03, 0x00, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff,
0x01, 0x01, /*handshake msg 3*/
]],
vec![
vec![
0x03, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe,
0xff, 0x01, 0x01,
],
vec![
0x03, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe,
0xff, 0x01, 0x01,
],
vec![
0x03, 0x00, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe,
0xff, 0x01, 0x01,
],
],
0,
),
// Ensure zero length fragments don't cause an infinite recursive loop which in turn causes
// a stack overflow.
(
"Zero length fragment",
vec![vec![
0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x00,
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
]],
vec![vec![
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
]],
0,
),
];
for (name, inputs, expects, expected_epoch) in tests {
let mut fragment_buffer = FragmentBuffer::new();
for frag in inputs {
let status = fragment_buffer.push(&frag)?;
assert_eq!(
true, status,
"fragment_buffer didn't accept fragments for '{}'",
name
);
}
for expected in expects {
let (out, epoch) = fragment_buffer.pop()?;
assert_eq!(
out, expected,
"fragment_buffer '{}' push/pop: got {:?}, want {:?}",
name, out, expected
);
assert_eq!(
epoch, expected_epoch,
"fragment_buffer returned wrong epoch: got {}, want {}",
epoch, expected_epoch
);
}
let result = fragment_buffer.pop();
assert!(
result.is_err(),
"fragment_buffer popped single buffer multiple times for '{}'",
name
);
}
Ok(())
}
#[test]
fn test_fragment_buffer_overflow() -> Result<()> {
let mut fragment_buffer = FragmentBuffer::new();
fragment_buffer.push(&[
0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x03, 0x00,
0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00,
])?;
let big_buffer = vec![0; 2_000_000];
let result = fragment_buffer.push(&big_buffer);
assert!(
result.is_err(),
"Pushing a buffer of size 2MB should have caused FragmentBuffer::push to return an error"
);
Ok(())
}