s3-xml-uploader.test.js

const mockConfigUpdate = jest.fn();
const mockS3putObjectPromise = jest.fn().mockResolvedValue();
const mockS3putObject = jest.fn().mockImplementation(() => ({
  promise: mockS3putObjectPromise,
}));

const mockS3 = jest.fn().mockImplementation(() => ({
  putObject: mockS3putObject,
}));

const AWSMock = {
  config: {
    update: mockConfigUpdate,
  },
  S3: mockS3,
};