aboutsummaryrefslogtreecommitdiff
path: root/vendor/zeroize/tests/zeroize.rs
diff options
context:
space:
mode:
authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/zeroize/tests/zeroize.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/zeroize/tests/zeroize.rs')
-rw-r--r--vendor/zeroize/tests/zeroize.rs210
1 files changed, 0 insertions, 210 deletions
diff --git a/vendor/zeroize/tests/zeroize.rs b/vendor/zeroize/tests/zeroize.rs
deleted file mode 100644
index 32281c1..0000000
--- a/vendor/zeroize/tests/zeroize.rs
+++ /dev/null
@@ -1,210 +0,0 @@
-//! zeroize integration tests.
-
-use std::{
- marker::{PhantomData, PhantomPinned},
- mem::{size_of, MaybeUninit},
- num::*,
-};
-use zeroize::*;
-
-#[cfg(feature = "std")]
-use std::ffi::CString;
-
-#[derive(Clone, Debug, PartialEq)]
-struct ZeroizedOnDrop(u64);
-
-impl Drop for ZeroizedOnDrop {
- fn drop(&mut self) {
- self.0.zeroize();
- }
-}
-
-#[test]
-fn non_zero() {
- macro_rules! non_zero_test {
- ($($type:ty),+) => {
- $(let mut value = <$type>::new(42).unwrap();
- value.zeroize();
- assert_eq!(value.get(), 1);)+
- };
- }
-
- non_zero_test!(
- NonZeroI8,
- NonZeroI16,
- NonZeroI32,
- NonZeroI64,
- NonZeroI128,
- NonZeroIsize,
- NonZeroU8,
- NonZeroU16,
- NonZeroU32,
- NonZeroU64,
- NonZeroU128,
- NonZeroUsize
- );
-}
-
-#[test]
-fn zeroize_byte_arrays() {
- let mut arr = [42u8; 137];
- arr.zeroize();
- assert_eq!(arr.as_ref(), [0u8; 137].as_ref());
-}
-
-#[test]
-fn zeroize_on_drop_byte_arrays() {
- let mut arr = [ZeroizedOnDrop(42); 1];
- unsafe { core::ptr::drop_in_place(&mut arr) };
- assert_eq!(arr.as_ref(), [ZeroizedOnDrop(0); 1].as_ref());
-}
-
-#[test]
-fn zeroize_maybeuninit_byte_arrays() {
- let mut arr = [MaybeUninit::new(42u64); 64];
- arr.zeroize();
- let arr_init: [u64; 64] = unsafe { core::mem::transmute(arr) };
- assert_eq!(arr_init, [0u64; 64]);
-}
-
-#[test]
-fn zeroize_check_zerosize_types() {
- // Since we assume these types have zero size, we test this holds for
- // the current version of Rust.
- assert_eq!(size_of::<()>(), 0);
- assert_eq!(size_of::<PhantomPinned>(), 0);
- assert_eq!(size_of::<PhantomData<usize>>(), 0);
-}
-
-#[test]
-fn zeroize_check_tuple() {
- let mut tup1 = (42u8,);
- tup1.zeroize();
- assert_eq!(tup1, (0u8,));
-
- let mut tup2 = (42u8, 42u8);
- tup2.zeroize();
- assert_eq!(tup2, (0u8, 0u8));
-}
-
-#[test]
-fn zeroize_on_drop_check_tuple() {
- let mut tup1 = (ZeroizedOnDrop(42),);
- unsafe { core::ptr::drop_in_place(&mut tup1) };
- assert_eq!(tup1, (ZeroizedOnDrop(0),));
-
- let mut tup2 = (ZeroizedOnDrop(42), ZeroizedOnDrop(42));
- unsafe { core::ptr::drop_in_place(&mut tup2) };
- assert_eq!(tup2, (ZeroizedOnDrop(0), ZeroizedOnDrop(0)));
-}
-
-#[cfg(feature = "alloc")]
-#[test]
-fn zeroize_vec() {
- let mut vec = vec![42; 3];
- vec.zeroize();
- assert!(vec.is_empty());
-}
-
-#[cfg(feature = "alloc")]
-#[test]
-fn zeroize_vec_entire_capacity() {
- #[derive(Clone)]
- struct PanicOnNonZeroDrop(u64);
-
- impl Zeroize for PanicOnNonZeroDrop {
- fn zeroize(&mut self) {
- self.0 = 0;
- }
- }
-
- impl Drop for PanicOnNonZeroDrop {
- fn drop(&mut self) {
- if self.0 != 0 {
- panic!("dropped non-zeroized data");
- }
- }
- }
-
- // Ensure that the entire capacity of the vec is zeroized and that no unitinialized data
- // is ever interpreted as initialized
- let mut vec = vec![PanicOnNonZeroDrop(42); 2];
-
- unsafe {
- vec.set_len(1);
- }
-
- vec.zeroize();
-
- unsafe {
- vec.set_len(2);
- }
-
- drop(vec);
-}
-
-#[cfg(feature = "alloc")]
-#[test]
-fn zeroize_string() {
- let mut string = String::from("Hello, world!");
- string.zeroize();
- assert!(string.is_empty());
-}
-
-#[cfg(feature = "alloc")]
-#[test]
-fn zeroize_string_entire_capacity() {
- let mut string = String::from("Hello, world!");
- string.truncate(5);
-
- string.zeroize();
-
- // convert the string to a vec to easily access the unused capacity
- let mut as_vec = string.into_bytes();
- unsafe { as_vec.set_len(as_vec.capacity()) };
-
- assert!(as_vec.iter().all(|byte| *byte == 0));
-}
-
-// TODO(tarcieri): debug flaky test (with potential UB?) See: RustCrypto/utils#774
-#[cfg(feature = "std")]
-#[ignore]
-#[test]
-fn zeroize_c_string() {
- let mut cstring = CString::new("Hello, world!").expect("CString::new failed");
- let orig_len = cstring.as_bytes().len();
- let orig_ptr = cstring.as_bytes().as_ptr();
- cstring.zeroize();
- // This doesn't quite test that the original memory has been cleared, but only that
- // cstring now owns an empty buffer
- assert!(cstring.as_bytes().is_empty());
- for i in 0..orig_len {
- unsafe {
- // Using a simple deref, only one iteration of the loop is performed
- // presumably because after zeroize, the internal buffer has a length of one/
- // `read_volatile` seems to "fix" this
- // Note that this is very likely UB
- assert_eq!(orig_ptr.add(i).read_volatile(), 0);
- }
- }
-}
-
-#[cfg(feature = "alloc")]
-#[test]
-fn zeroize_box() {
- let mut boxed_arr = Box::new([42u8; 3]);
- boxed_arr.zeroize();
- assert_eq!(boxed_arr.as_ref(), &[0u8; 3]);
-}
-
-#[cfg(feature = "alloc")]
-#[test]
-fn asref() {
- let mut buffer: Zeroizing<Vec<u8>> = Default::default();
- let _asmut: &mut [u8] = buffer.as_mut();
- let _asref: &[u8] = buffer.as_ref();
-
- let mut buffer: Zeroizing<Box<[u8]>> = Default::default();
- let _asmut: &mut [u8] = buffer.as_mut();
- let _asref: &[u8] = buffer.as_ref();
-}