How to get the types from compiled Idl in my tests?

Question

So I'm able to run tests just fine and I know for a fact that the typescript is picking up the types from my compiled program.

With that said, I have resorted to using let myAccount: Awaited<ReturnType<typeof program.account.myAccount.fetch>>; to get the type in my Typescript. How do I reference the types from my compiled program?

Answer 1

Your idl inside the generated typescript file should have the following format:

export type SomeProgram = {
  "version": "0.1.0",
  "name": "some_program",
  "instructions": [// Instructions here],
  "accounts:":[// Accounts defs here, what we'll be accessing below],
  "types":[// Custom types here],
  "errors":[//Errors here],
};

export const IDL: SomeProgram = {
  "version": "0.1.0",
  "name": "some_program",
  "instructions": [// Instructions here],
  "accounts:":[// Accounts here],
  "types":[// Custom types here],
  "errors":[//Errors here],
};

After you've validated this is the format, you should just be able to import it in your tests like below and get the type of some account, like this (assuming you want the account type called myAccountType):

import * as anchor from "@coral-xyz/anchor";
import { SomeProgram } from '../target/types/some_program'
let myAccount : anchor.IdlAccounts<SomeProgram>['myAccountType']