Automated testing and why it's important
Make software better and keep users happy.
🤖 What is Automated Testing?
Testing is when we check if our code works correctly by using the software.
Automated testing is when we use tools to check if our code works correctly without needing to test it ourselves manually.
Tools such as Selenium, Cypress and Playwright do this.
🧪 Types of Automated Testing
There are three main ways to write automated tests.
🔬 Unit Testing
It checks if an individual code or unit functions correctly.
For example, let's say we have a component that shows a user's name and photo.
In a unit test, we would check if the name shows up properly and if the photo is displayed correctly.
🧩 Integration Testing
It checks if different parts of the website work well together.
For example, an online store. In an integration test, we check if the product page and the shopping cart work well together.
We make sure that when we choose items, they get added correctly, and the total price is calculated accurately.
🚀 End-to-End Testing (E2E)
It checks if entire user flows work as they should by using the software in a real environment.
For example, let's imagine a social media app. In E2E testing, we act like real users, signing up, posting a post, and seeing it on someone else's profile.
💡 Benefits of Automated Testing
Saves time: It's faster than manual testing done by humans.
Reduces mistakes: It finds errors that people might miss, making software better.
Finds bugs early: It helps to find and fix problems before the software is released.
Enables confident refactoring: You can change your code confidently because tests will let you know if the software isn't working as expected.
🔭 Why is Testing Important?
Saves Money: Testing early helps catch and fix issues before they become costly problems later on.
Speeds up Development: It helps find and fix errors quickly, keeping the development process on track.
Improves Product Quality: It makes sure software works well, meets user needs, and provides a smooth experience.
Evaluates Performance: Testing also checks how well the software works and performs to meet user expectations.