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-rw-r--r--library/std/src/io/readbuf/tests.rs220
1 files changed, 107 insertions, 113 deletions
diff --git a/library/std/src/io/readbuf/tests.rs b/library/std/src/io/readbuf/tests.rs
index 3b7a5a56d..cc1b423f2 100644
--- a/library/std/src/io/readbuf/tests.rs
+++ b/library/std/src/io/readbuf/tests.rs
@@ -1,181 +1,175 @@
-use super::ReadBuf;
+use super::BorrowedBuf;
use crate::mem::MaybeUninit;
-/// Test that ReadBuf has the correct numbers when created with new
+/// Test that BorrowedBuf has the correct numbers when created with new
#[test]
fn new() {
- let mut buf = [0; 16];
- let rbuf = ReadBuf::new(&mut buf);
+ let buf: &mut [_] = &mut [0; 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
- assert_eq!(rbuf.filled_len(), 0);
- assert_eq!(rbuf.initialized_len(), 16);
+ assert_eq!(rbuf.filled().len(), 0);
+ assert_eq!(rbuf.init_len(), 16);
assert_eq!(rbuf.capacity(), 16);
- assert_eq!(rbuf.remaining(), 16);
+ assert_eq!(rbuf.unfilled().capacity(), 16);
}
-/// Test that ReadBuf has the correct numbers when created with uninit
+/// Test that BorrowedBuf has the correct numbers when created with uninit
#[test]
fn uninit() {
- let mut buf = [MaybeUninit::uninit(); 16];
- let rbuf = ReadBuf::uninit(&mut buf);
+ let buf: &mut [_] = &mut [MaybeUninit::uninit(); 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
- assert_eq!(rbuf.filled_len(), 0);
- assert_eq!(rbuf.initialized_len(), 0);
+ assert_eq!(rbuf.filled().len(), 0);
+ assert_eq!(rbuf.init_len(), 0);
assert_eq!(rbuf.capacity(), 16);
- assert_eq!(rbuf.remaining(), 16);
+ assert_eq!(rbuf.unfilled().capacity(), 16);
}
#[test]
fn initialize_unfilled() {
- let mut buf = [MaybeUninit::uninit(); 16];
- let mut rbuf = ReadBuf::uninit(&mut buf);
+ let buf: &mut [_] = &mut [MaybeUninit::uninit(); 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
- rbuf.initialize_unfilled();
+ rbuf.unfilled().ensure_init();
- assert_eq!(rbuf.initialized_len(), 16);
+ assert_eq!(rbuf.init_len(), 16);
}
#[test]
-fn initialize_unfilled_to() {
- let mut buf = [MaybeUninit::uninit(); 16];
- let mut rbuf = ReadBuf::uninit(&mut buf);
+fn addvance_filled() {
+ let buf: &mut [_] = &mut [0; 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
- rbuf.initialize_unfilled_to(8);
-
- assert_eq!(rbuf.initialized_len(), 8);
-
- rbuf.initialize_unfilled_to(4);
-
- assert_eq!(rbuf.initialized_len(), 8);
-
- rbuf.set_filled(8);
-
- rbuf.initialize_unfilled_to(6);
-
- assert_eq!(rbuf.initialized_len(), 14);
-
- rbuf.initialize_unfilled_to(8);
-
- assert_eq!(rbuf.initialized_len(), 16);
-}
-
-#[test]
-fn add_filled() {
- let mut buf = [0; 16];
- let mut rbuf = ReadBuf::new(&mut buf);
-
- rbuf.add_filled(1);
-
- assert_eq!(rbuf.filled_len(), 1);
- assert_eq!(rbuf.remaining(), 15);
-}
-
-#[test]
-#[should_panic]
-fn add_filled_panic() {
- let mut buf = [MaybeUninit::uninit(); 16];
- let mut rbuf = ReadBuf::uninit(&mut buf);
-
- rbuf.add_filled(1);
-}
-
-#[test]
-fn set_filled() {
- let mut buf = [0; 16];
- let mut rbuf = ReadBuf::new(&mut buf);
-
- rbuf.set_filled(16);
-
- assert_eq!(rbuf.filled_len(), 16);
- assert_eq!(rbuf.remaining(), 0);
-
- rbuf.set_filled(6);
-
- assert_eq!(rbuf.filled_len(), 6);
- assert_eq!(rbuf.remaining(), 10);
-}
-
-#[test]
-#[should_panic]
-fn set_filled_panic() {
- let mut buf = [MaybeUninit::uninit(); 16];
- let mut rbuf = ReadBuf::uninit(&mut buf);
+ unsafe {
+ rbuf.unfilled().advance(1);
+ }
- rbuf.set_filled(16);
+ assert_eq!(rbuf.filled().len(), 1);
+ assert_eq!(rbuf.unfilled().capacity(), 15);
}
#[test]
fn clear() {
- let mut buf = [255; 16];
- let mut rbuf = ReadBuf::new(&mut buf);
+ let buf: &mut [_] = &mut [255; 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
- rbuf.set_filled(16);
+ unsafe {
+ rbuf.unfilled().advance(16);
+ }
- assert_eq!(rbuf.filled_len(), 16);
- assert_eq!(rbuf.remaining(), 0);
+ assert_eq!(rbuf.filled().len(), 16);
+ assert_eq!(rbuf.unfilled().capacity(), 0);
rbuf.clear();
- assert_eq!(rbuf.filled_len(), 0);
- assert_eq!(rbuf.remaining(), 16);
+ assert_eq!(rbuf.filled().len(), 0);
+ assert_eq!(rbuf.unfilled().capacity(), 16);
- assert_eq!(rbuf.initialized(), [255; 16]);
+ assert_eq!(rbuf.unfilled().init_ref(), [255; 16]);
}
#[test]
-fn assume_init() {
- let mut buf = [MaybeUninit::uninit(); 16];
- let mut rbuf = ReadBuf::uninit(&mut buf);
+fn set_init() {
+ let buf: &mut [_] = &mut [MaybeUninit::uninit(); 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
unsafe {
- rbuf.assume_init(8);
+ rbuf.set_init(8);
}
- assert_eq!(rbuf.initialized_len(), 8);
+ assert_eq!(rbuf.init_len(), 8);
- rbuf.add_filled(4);
+ unsafe {
+ rbuf.unfilled().advance(4);
+ }
unsafe {
- rbuf.assume_init(2);
+ rbuf.set_init(2);
}
- assert_eq!(rbuf.initialized_len(), 8);
+ assert_eq!(rbuf.init_len(), 8);
unsafe {
- rbuf.assume_init(8);
+ rbuf.set_init(8);
}
- assert_eq!(rbuf.initialized_len(), 12);
+ assert_eq!(rbuf.init_len(), 8);
}
#[test]
fn append() {
- let mut buf = [MaybeUninit::new(255); 16];
- let mut rbuf = ReadBuf::uninit(&mut buf);
+ let buf: &mut [_] = &mut [MaybeUninit::new(255); 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
- rbuf.append(&[0; 8]);
+ rbuf.unfilled().append(&[0; 8]);
- assert_eq!(rbuf.initialized_len(), 8);
- assert_eq!(rbuf.filled_len(), 8);
+ assert_eq!(rbuf.init_len(), 8);
+ assert_eq!(rbuf.filled().len(), 8);
assert_eq!(rbuf.filled(), [0; 8]);
rbuf.clear();
- rbuf.append(&[1; 16]);
+ rbuf.unfilled().append(&[1; 16]);
- assert_eq!(rbuf.initialized_len(), 16);
- assert_eq!(rbuf.filled_len(), 16);
+ assert_eq!(rbuf.init_len(), 16);
+ assert_eq!(rbuf.filled().len(), 16);
assert_eq!(rbuf.filled(), [1; 16]);
}
#[test]
-fn filled_mut() {
- let mut buf = [0; 16];
- let mut rbuf = ReadBuf::new(&mut buf);
+fn reborrow_written() {
+ let buf: &mut [_] = &mut [MaybeUninit::new(0); 32];
+ let mut buf: BorrowedBuf<'_> = buf.into();
+
+ let mut cursor = buf.unfilled();
+ cursor.append(&[1; 16]);
+
+ let mut cursor2 = cursor.reborrow();
+ cursor2.append(&[2; 16]);
+
+ assert_eq!(cursor2.written(), 32);
+ assert_eq!(cursor.written(), 32);
+
+ assert_eq!(buf.unfilled().written(), 0);
+ assert_eq!(buf.init_len(), 32);
+ assert_eq!(buf.filled().len(), 32);
+ let filled = buf.filled();
+ assert_eq!(&filled[..16], [1; 16]);
+ assert_eq!(&filled[16..], [2; 16]);
+}
+
+#[test]
+fn cursor_set_init() {
+ let buf: &mut [_] = &mut [MaybeUninit::uninit(); 16];
+ let mut rbuf: BorrowedBuf<'_> = buf.into();
+
+ unsafe {
+ rbuf.unfilled().set_init(8);
+ }
- rbuf.add_filled(8);
+ assert_eq!(rbuf.init_len(), 8);
+ assert_eq!(rbuf.unfilled().init_ref().len(), 8);
+ assert_eq!(rbuf.unfilled().init_mut().len(), 8);
+ assert_eq!(rbuf.unfilled().uninit_mut().len(), 8);
+ assert_eq!(unsafe { rbuf.unfilled().as_mut() }.len(), 16);
+
+ unsafe {
+ rbuf.unfilled().advance(4);
+ }
- let filled = rbuf.filled().to_vec();
+ unsafe {
+ rbuf.unfilled().set_init(2);
+ }
+
+ assert_eq!(rbuf.init_len(), 8);
+
+ unsafe {
+ rbuf.unfilled().set_init(8);
+ }
- assert_eq!(&*filled, &*rbuf.filled_mut());
+ assert_eq!(rbuf.init_len(), 12);
+ assert_eq!(rbuf.unfilled().init_ref().len(), 8);
+ assert_eq!(rbuf.unfilled().init_mut().len(), 8);
+ assert_eq!(rbuf.unfilled().uninit_mut().len(), 4);
+ assert_eq!(unsafe { rbuf.unfilled().as_mut() }.len(), 12);
}
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