Mod 测试在近区块链的 Rust 智能合约中不起作用

Question

#[cfg(test)]
mod tests {
    use super::*;
    use near_sdk::MockedBlockchain;
    use near_sdk::{testing_env, VMContext};
    fn get_context(predecessor_account_id: String, storage_usage: u64) -> VMContext {
        VMContext {
            current_account_id: "alice.testnet".to_string(),
            signer_account_id: "jane.testnet".to_string(),
            signer_account_pk: vec![0, 1, 2],
            predecessor_account_id,
            input: vec![],
            block_index: 0,
            block_timestamp: 0,
            account_balance: 0,
            account_locked_balance: 0,
            storage_usage,
            attached_deposit: 0,
            prepaid_gas: 10u64.pow(18),
            random_seed: vec![0, 1, 2],
            is_view: false,
            output_data_receivers: vec![],
            epoch_height: 19,
        }
    }
}

Error:

CODE FROM: https://docs.near.org/docs/develop/contracts/rust/intro

To write tests for smart contracts in rust I referred to this website article, link is pasted above. Now I copied the boilerplate code for cargo.toml and the test config(code to that is the above - 1st from the top). I get this error which I cannot debug, I am not sure what I am doing wrong.

Answer 1

To clarify what others have pointed out in the comments, it looks like you have something like this:

struct Foo {
  // whatever
}

impl Foo {
  fn some_function() {
    // whatever
  }

// this closing brace is missing
// }

#[cfg(test)]
mod tests {

}

You cannot define a module inside an impl block, so this out of order brace is causing the "module is not supported in trait s or impl s" error you see.