chore: move sdk-token-test to sdk-tests, fix: zero out complete cpi context account

Author: ananas-block

Cargo.lock

@@ -39,10 +39,10 @@ members = [
     "program-tests/system-cpi-test",
     "program-tests/system-cpi-v2-test",
     "program-tests/system-test",
-    "program-tests/sdk-anchor-test/programs/sdk-anchor-test",
-    "program-tests/sdk-test",
-    "program-tests/sdk-token-test",
-    "program-tests/sdk-pinocchio-test",
+    "sdk-tests/sdk-anchor-test/programs/sdk-anchor-test",
+    "sdk-tests/sdk-test",
+    "sdk-tests/sdk-token-test",
+    "sdk-tests/sdk-pinocchio-test",
     "program-tests/create-address-test-program",
     "program-tests/utils",
     "program-tests/merkle-tree",

Cargo.toml

@@ -7,7 +7,7 @@ use core::{
 #[cfg(feature = "std")]
 use std::vec::Vec;
 
-use zerocopy::{little_endian::U32, Ref};
+use zerocopy::{little_endian::U32, IntoBytes, Ref};
 
 use crate::{add_padding, errors::ZeroCopyError, ZeroCopyTraits};
 
@@ -143,6 +143,15 @@ where
             .unwrap();
     }
 
+    #[inline]
+    pub fn zero_out(&mut self) {
+        *self.get_len_mut() = 0
+            .try_into()
+            .map_err(|_| ZeroCopyError::InvalidConversion)
+            .unwrap();
+        self.slice.as_mut_bytes().fill(0);
+    }
+
     #[inline]
     pub fn metadata_size() -> usize {
         let mut size = size_of::<[L; 2]>();

program-libs/zero-copy/src/vec.rs

@@ -213,11 +213,11 @@ fn deserialize_cpi_context_account_inner<'a, const CLEARED: bool>(
     let (mut out_accounts, data) = ZeroCopyVecU8::<'a, CpiContextOutAccount>::from_bytes_at(data)?;
     let (mut output_data_len, mut data) = Ref::<&'a mut [u8], U16>::from_prefix(data)?;
     let output_data = if CLEARED {
-        new_addresses.clear();
-        readonly_addresses.clear();
-        readonly_accounts.clear();
-        in_accounts.clear();
-        out_accounts.clear();
+        new_addresses.zero_out();
+        readonly_addresses.zero_out();
+        readonly_accounts.zero_out();
+        in_accounts.zero_out();
+        out_accounts.zero_out();
         output_data_len.set(0);
         // 65 CU
         data.fill(0);