[ISSUE] Jest testing: Crypto module not found

[Mskalba]

Reproduction steps:

1. Boilerplate new CRA project and check basic rendering test

npx create-react-app dep-check --template typescript
cd dep-check
npm i
npm run test

All works fine.

2. Add terra.js dependency

npm i --save @terra-money/terra.js

3. Modify App.tsx with first example from terra.js Readme

`import React, {useState} from 'react';
import './App.css';
import { LCDClient, Coin } from '@terra-money/terra.js';

const terra = new LCDClient({
  URL: 'https://tequila-lcd.terra.dev',
  chainID: 'tequila-0004',
});
const App = () => {
  const [coins, setCoins] = useState('');
  const offerCoin = new Coin('uusd', '1000000');
  terra.market.swapRate(offerCoin, 'ukrw').then(c => {
    setCoins(`${offerCoin.toString()} can be swapped for ${c.toString()}`);
  });
  return (
      <div>
        {coins}
      </div>
  );
};

export default App;`

4. Run again basic test:

npm run test

It fails:

 FAIL  src/App.test.tsx
  ● Test suite failed to run

    Crypto module not found
    
      at node_modules/jscrypto/SHA256.js:1:5962
      at Object.9054 (node_modules/jscrypto/SHA256.js:1:6223)
      at r (node_modules/jscrypto/SHA256.js:1:6324)
      at Object.3354 (node_modules/jscrypto/SHA256.js:1:491)
      at r (node_modules/jscrypto/SHA256.js:1:6324)
      at Object.7211 (node_modules/jscrypto/SHA256.js:1:2275)
      at r (node_modules/jscrypto/SHA256.js:1:6324)
      at Object.1868 (node_modules/jscrypto/SHA256.js:1:3145)
      at r (node_modules/jscrypto/SHA256.js:1:6324)
      at node_modules/jscrypto/SHA256.js:1:6935
      at node_modules/jscrypto/SHA256.js:1:8672
      at node_modules/jscrypto/SHA256.js:1:8677
      at node_modules/jscrypto/SHA256.js:1:173
      at Object.<anonymous> (node_modules/jscrypto/SHA256.js:1:366)
      at Object.<anonymous> (node_modules/@terra-money/terra.js/src/core/oracle/msgs/MsgExchangeRateVote.ts:1:1)
      at Object.<anonymous> (node_modules/@terra-money/terra.js/src/core/oracle/msgs/index.ts:9:1)
      at Object.<anonymous> (node_modules/@terra-money/terra.js/src/core/Msg.ts:17:1)
      at Object.<anonymous> (node_modules/@terra-money/terra.js/src/core/index.ts:5:1)
      at Object.<anonymous> (node_modules/@terra-money/terra.js/src/index.ts:1:1)
      at Object.<anonymous> (src/App.tsx:4:1)
      at Object.<anonymous> (src/App.test.tsx:3:1)

Is there anyway to disable that module on test level or something? I know that you introduced jscrypto instead of crypto-js, but it seems like this package is a little bit problematic as well.

Will appreciate any possible solutions.

[iamssen]

https://github.com/Anchor-Protocol/anchor-web-app/blob/feature/beth/app/src/setupTests.ts

This is a temporary solution.

[Mskalba]

Ok, thanks. It can be closed I think for now.