你如何使用 `ink!` 测试与 Substrate 的跨合约调用？

如何解决你如何使用 `ink!` 测试与 Substrate 的跨合约调用？

给定一个使用 ink! 编写的 2 个合约 Substrate 区块链，我如何运行一个单元测试来实例化两个合约？

“根”MyContract

use ink_storage::Lazy;
use other_contract::OtherContract;

//--snip--
#[ink(storage)]
struct MyContract {
    /// The other contract.
    other_contract: Lazy<OtherContract>,}

impl MyContract {
    /// Instantiate `MyContract with the given
    /// sub-contract codes and some initial value.
    #[ink(constructor)]
    pub fn new(
        other_contract_code_hash: Hash,) -> Self {
        let other_contract = OtherContract::new(1337)
            .endowment(total_balance / 4)
            .code_hash(other_contract_code_hash)
            .instantiate()
            .expect("Failed at instantiating the `OtherContract` contract");
        Self {
            other_contract
        }
    }

    /// Calls the other contract.
    #[ink(message)]
    pub fn call_other_contract(&self) -> i32 {
        self.other_contract.get_value()
    }
}
//--snip--

OtherContract

#[ink::contract]
pub mod other_contract {
    /// Storage for the other contract.
    #[ink(storage)]
    pub struct OtherContract {
        value: i32,}

    impl OtherContract {
        /// Initializes the contract.
        #[ink(constructor)]
        pub fn new(value: i32) -> Self {
            Self { value }
        }

        /// Returns the current state.
        #[ink(message)]
        pub fn get_value(&self) -> i32 {
            self.value
        }
    }
}

delegator example 还代表多个合约的游乐场。

解决方法

您还不能使用常规测试框架对此进行单元测试。 https://redspot.patract.io/en/ 是一个允许您编写集成测试的框架。