fabric-chaincode-test.js

import { MyChaincode } from '../<path_to_your_chaincode_class>';
import { ChaincodeMockStub, Transform } from "@theledger/fabric-mock-stub";
// You always need your chaincode so it knows which chaincode to invoke on
const chaincode = new MyChaincode();
describe('Test MyChaincode', () => {
    it("Should init without issues", async () => {
        const mockStub = new ChaincodeMockStub("MyMockStub", chaincode);
        // Your test code
    });
});