docs and nitty gritties

crates/env/src/engine/off_chain/test_api.rs

@@ -200,6 +200,7 @@ where
 }
 
 /// Sets the value transferred from the caller to the callee as part of the call.
+/// Please note that the actioning accounts should be set with [`set_caller()`] and [`set_callee()`] beforehand.
 pub fn set_value_transferred<T>(value: T::Balance)
 where
     T: Environment<Balance = u128>, // Just temporary for the MVP!
@@ -210,6 +211,7 @@ where
 }
 
 /// Transfers value from the caller account to the contract.
+/// Please note that the actioning accounts should be set with [`set_caller()`] and [`set_callee()`] beforehand.
 pub fn transfer_in<T>(value: T::Balance)
 where
     T: Environment<Balance = u128>, // Just temporary for the MVP!

examples/contract-transfer/lib.rs

@@ -66,7 +66,6 @@ pub mod give_me {
     mod tests {
         use super::*;
         use ink_lang as ink;
-        use ink_lang::codegen::Env;
 
         #[ink::test]
         fn transfer_works() {
@@ -102,6 +101,7 @@ pub mod give_me {
 
         #[ink::test]
         fn test_transferred_value() {
+            use ink_lang::codegen::Env;
             // given
             let accounts = default_accounts();
             let give_me = create_contract(100);