Intermezzo – NestJS + Jest vs Angular + Jasmine

We decided to add an Angular project.  As a immediate consequence,the compile ( tsc ) of the API ( bingo-cards-api) it failes with the first error being:

../node_modules/@types/jasmine/ts3.1/index.d.ts:16:1 – error TS6200: Definitions of the following identifiers conflict with those in another file: beforeAll,beforeEach,afterAll,afterEach,describe,fdescribe,xdescribe,it,fit,xit,expect,DEFAULT_TIMEOUT_INTERVAL,CustomMatcherFactory,CustomEqualityTester

Obviously,we have a conflict… And the conflict is done by Angular( that comes with Jasmine by default) and Nest ( that comes with Jest) ( and us,that we have choose Jest)

There are 3 solving paths:

1. Convert all to Jasmine
2. Convert all to Jest
3. Eliminate the tests from the Angular,eliminate the tests from Nest and create the own library to test (we have done already this,in bingo-meeting-objects-test)

Solution 1 : means re-factor all. Not good.

I have tried the 2,but,in spite of many tutorials on the internet,some problems have arrived.

So we have the 3 : eliminate all references to Jest and Jasmine,with the exception of bingo-meeting-objects-test

And… it worked!