Invoke with empty account slice (#13931)

programs/bpf/rust/invoke/src/lib.rs

@@ -20,6 +20,7 @@ const TEST_SUCCESS: u8 = 1;
 const TEST_PRIVILEGE_ESCALATION_SIGNER: u8 = 2;
 const TEST_PRIVILEGE_ESCALATION_WRITABLE: u8 = 3;
 const TEST_PPROGRAM_NOT_EXECUTABLE: u8 = 4;
+const TEST_EMPTY_ACCOUNTS_SLICE: u8 = 5;
 
 // const MINT_INDEX: usize = 0;
 const ARGUMENT_INDEX: usize = 1;
@@ -366,6 +367,11 @@ fn process_instruction(
             );
             invoke(&instruction, accounts)?;
         }
+        TEST_EMPTY_ACCOUNTS_SLICE => {
+            msg!("Empty accounts slice");
+            let instruction = create_instruction(*accounts[INVOKED_PROGRAM_INDEX].key, &[], vec![]);
+            invoke(&instruction, &[])?;
+        }
         _ => panic!(),
     }