ERROR node-builder RUN npx tsc on attemt to setup Jest

Runtime Framework
7

I’ve looked into this and had success with ts-patch instead of ttypescript:

npm uninstall ttypescript
npm i -D ts-patch

on package.json change the compiler:

 "jest": {
    "globals": {
      "ts-jest": {
        "compiler": "ts-patch/compiler"
      }
    },

I’ll list here the rest of the steps I took to make it work locally, you may not need all of these but they will be patched into the testing guide later:

  • Adjust import path: import AddItemRpc from "./rpc-add-item";
  • Use @jest/globals instead of @types/jest:

npm install --save-dev @jest/globals

  • Add needed imports to rpc-add-item.test.ts:
import { describe, expect, beforeEach, test } from '@jest/globals';
import 'jest'
  • If you have strict type-checking enabled:

On rpc-add-item.test.ts:

let mockCtx: any, mockLogger: any, mockNk: any, mockLoggerError: any, mockNkStorageRead: any, mockNkStorageWrite: any, mockStorageWriteAck: any;

On rpc-add-item.ts:

type Inventory = {
    [key: string]: any;
};

const AddItemRpc = function (ctx: nkruntime.Context, logger: nkruntime.Logger, nk: nkruntime.Nakama, payload: string | null): string {
...
let inventory: Inventory = {};

Let me know if that works for you.