Input / Output testing

> Author: Thomas Laforge ### Statement: We have a small counter application that increment or decrement a number. You can play with it by running : `npx nx serve testing-input-output`. The goal is to test `CounterComponent` with Testing library and Cypress The file named `counter.component.spec.ts` will let test your application using Testing Library. To run the test suits, you need to run `npx nx test testing-nested`. You can also install [Jest Runner](https://marketplace.visualstudio.com/items?itemName=firsttris.vscode-jest-runner) to execute your test by clicking on the `Run` button above each `describe` or `it` blocks. For testing cypress, you will execute your test inside the `counter.component.cy.ts` and run `npx nx component-test testing-nested` to execute your test suits. You can add the `--watch` flag to execute your test in watch mode. I created some `it` blocks but feel free to add more test if you like to. ### Submitting your work 1. Fork the project 2. clone it 3. npm ci 4. `npx nx serve testing-input-output` to play with the application 5. `npx nx test testing-input-output` to test your application with Testing Library 6. `npx nx component-test testing-input-output --watch` to test your application with Cypress 7. _...work on it_ 8. Commit your work 9. Submit a PR with a title beginning with **Answer:19** that I will review and other dev can review. input output testing input output testing solution author _You can ask any question on_ twitter