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buffer: Fix range end calculations

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And add various tests to cover for this.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1369>
This commit is contained in:
Sebastian Dröge 2023-12-22 15:09:31 +02:00
parent 60e8c44abb
commit 5f01bcf8f4
1 changed files with 64 additions and 4 deletions
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68
gstreamer/src/buffer.rs
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@ -226,11 +226,11 @@ impl BufferRef {
};
let end_idx = match range.end_bound() {
ops::Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx >= n_memory) => {
ops::Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx > n_memory) => {
return Err(glib::bool_error!("Invalid range end"));
}
ops::Bound::Included(idx) => *idx + 1,
ops::Bound::Excluded(idx) if *idx >= n_memory => {
ops::Bound::Excluded(idx) if *idx > n_memory => {
return Err(glib::bool_error!("Invalid range end"));
}
ops::Bound::Excluded(idx) => *idx,
@ -318,11 +318,11 @@ impl BufferRef {
};
let end_idx = match range.end_bound() {
ops::Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx >= size) => {
ops::Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx > size) => {
return Err(glib::bool_error!("Invalid range end"));
}
ops::Bound::Included(idx) => *idx + 1,
ops::Bound::Excluded(idx) if *idx >= size => {
ops::Bound::Excluded(idx) if *idx > size => {
return Err(glib::bool_error!("Invalid range end"));
}
ops::Bound::Excluded(idx) => *idx,
@ -1899,6 +1899,66 @@ mod tests {
assert!(!BufferRef::ptr_eq(&buffer1, &buffer2));
}
#[test]
fn test_copy_region() {
crate::init().unwrap();
let buffer1 = Buffer::from_mut_slice(vec![0, 1, 2, 3, 4, 5, 6, 7]);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, ..).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[0, 1, 2, 3, 4, 5, 6, 7]
);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, 0..8).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[0, 1, 2, 3, 4, 5, 6, 7]
);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, 0..=7).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[0, 1, 2, 3, 4, 5, 6, 7]
);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, ..=7).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[0, 1, 2, 3, 4, 5, 6, 7]
);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, ..8).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[0, 1, 2, 3, 4, 5, 6, 7]
);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, 0..).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[0, 1, 2, 3, 4, 5, 6, 7]
);
assert!(buffer1.copy_region(BUFFER_COPY_ALL, 0..=8).is_err());
assert!(buffer1.copy_region(BUFFER_COPY_ALL, 0..=10).is_err());
assert!(buffer1.copy_region(BUFFER_COPY_ALL, 8..=10).is_err());
assert!(buffer1.copy_region(BUFFER_COPY_ALL, 8..=8).is_err());
assert!(buffer1.copy_region(BUFFER_COPY_ALL, 10..).is_err());
assert!(buffer1.copy_region(BUFFER_COPY_ALL, 10..100).is_err());
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, 2..4).unwrap();
assert_eq!(buffer2.map_readable().unwrap().as_slice(), &[2, 3]);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, 2..=4).unwrap();
assert_eq!(buffer2.map_readable().unwrap().as_slice(), &[2, 3, 4]);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, 2..).unwrap();
assert_eq!(
buffer2.map_readable().unwrap().as_slice(),
&[2, 3, 4, 5, 6, 7]
);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, ..2).unwrap();
assert_eq!(buffer2.map_readable().unwrap().as_slice(), &[0, 1]);
let buffer2 = buffer1.copy_region(BUFFER_COPY_ALL, ..=2).unwrap();
assert_eq!(buffer2.map_readable().unwrap().as_slice(), &[0, 1, 2]);
}
#[test]
fn test_dump() {
use std::fmt::Write;