Jest Mock Help

[kbrashears5]

Need some help with mocking the responses using Jest in the new v3 version.

Previously, I would use the jest mock implementation promise:

const awsResponses: {
  getApiKey: {
      promise: jest.fn().mockImplementation(() => {
          return returnError ?
              Promise.reject(rejectResponse) :
              Promise.resolve<APIGateway.ApiKey>(this.ApiKey);
      }),
  },
}

to where I could then do

let functions = new APIGateway.APIGateway(options);
functions = {
    getApiKey: () => awsResponses.getApiKey,
};

so that the getApiKey call would be mocked and not call the actual AWS SDK and I could do unit/integration testing

I'm a bit confused on how to do that in the new version, since the .promise() appears to have gone away on any of the SDK calls. Getting the following error now after trying to upgrade my package to the latest SDK version:

Type '{ promise: jest.Mock<any, any>; }' is not assignable to type 'void | Promise'.
Type '{ promise: Mock<any, any>; }' is missing the following properties from type 'Promise': then, catch, [Symbol.toStringTag], finally ts(2322)

Any thoughts or advice?