stub aws service using sinon

gistfile1.txt

const aws = require('aws-sdk');
const sinon = require('sinon');

###############################

sinon.stub(aws, 'SecretsManager').returns({
  getSecretValue: () => {
    return {promise: () => Promise.resolve("someValue") }
  }
});

###############################

/*
  only getRandomPassword is stubbed
*/

let sm = new aws.SecretsManager({region: "us-west-2"})
this.awsStub = sinon.stub(aws, 'SecretsManager').returns(
    (() => {
        sinon.stub(sm, 'getRandomPassword').withArgs("something").returns(3)
        return sm
    }).call()
);

###############################
const sinon = require('sinon')
const aws = require('aws-sdk')
const { secretNames } = require('../../../lib/utils/secret-names')

const stub = sinon.stub(aws, "SecretsManager")

stub.callsFake((options) => {
  const sm = new stub.wrappedMethod(options)

  const stubb = sinon.stub(sm, "getSecretValue")
  stubb.callsFake((request) => {
    if (request.SecretId === secretNames["placeholder"]) {
      return {
        promise: async () => {
          return {
            SecretString: {
              reader: {
                base: {
                  user: process.env.PGUSER,
                  password: process.env.PGPASSWORD,
                  database: process.env.PGDATABASE,
                  host: process.env.PGHOST,
                },
                hosts: [
                ],
              },
              writer: {
                base: {
                  user: process.env.PGUSER,
                  password: process.env.PGPASSWORD,
                  database: process.env.PGDATABASE,
                  host: process.env.PGHOST,
                },
                hosts: [
                ],
              },
            }
          }
        }
      }
    }

    return stubb.wrappedMethod.call(sm, request)
  })

  return sm
})