TODO:

Learn how to run tests in your IDE. I.e. for Webstorm https://www.jetbrains.com/help/webstorm/performing-tests.html
Read https://medium.com/@pjbgf/title-testing-code-ocd-and-the-aaa-pattern-df453975ab80
Take a look at existing tests in the system. Examples:

• modules/scheduler/components/scheduler/scheduler.component.spec.ts
  - modules/ix-forms/components/ix-input
  Select another ix-forms component that does not have tests, such as ix-select.
  Add unit tests covering major functions of the component.