Testing

Three types of testing in order of cost to maintain

1. Unit test. You write the tests alongside the code that is written by the developers. Fast, reliable.
1. Easy to maintain
2. e.g. PHPUnit, JUnit, C# Unit
2. Integration test. I am going to test with real components. I am using the real database.
1. You need to setup an environment.
2. You need to a real database
3. e.g. same tools as the above
3. UI test. Test the flow of the application.
1. UI elements or styling will change over time
2. Cross-functional tests across the different browsers
3. e.g. Selenium, Playright
4. Selenium is the most popular tool for web browsers. They manage the browsers under the hood. They provide a API and syntax to control the web browser.
1. People don’t Selenium directly. There are many providers that use abstraction (using Selenium under the hood)
5. Playright uses Selenium under the hood to run the tests.
1. Playright is using the MPN ecosystem
2. Playright scripts are