𝗪𝗵𝘆 𝗬𝗼𝘂 𝗡𝗲𝗲𝗱 𝗮 𝗦𝘁𝗿𝗼𝗻𝗴 𝗧𝗲𝘀𝘁 𝗦𝘂𝗶𝘁𝗲

I used to think tests wasted time.

My motto was ship fast and fix later. Then I spent three weeks debugging a production issue. A simple test would have found it in 30 seconds.

If you build products for clients, skipping tests causes problems:

  • Small changes break unrelated features.
  • Clients find bugs before you do.
  • Refactoring code feels scary.
  • You lose sleep before every deployment.
  • Your professional reputation suffers.

A good test suite solves these issues.

Benefits of testing:

  • Speed: You refactor and add features without fear.
  • Documentation: Tests show how your system works.
  • Safety: You catch bugs before they reach users.
  • Clean Code: Testing forces you to write modular code.
  • Trust: Clients see your work as professional.

Use this testing pyramid to stay efficient:

• Unit Tests (70%): Test single functions and components. • Integration Tests (20%): Test how parts work together, like an API and a database. • End-to-End Tests (10%): Test critical paths like login or checkout.

Do not aim for 100% coverage. Aim for high-value coverage around your business logic.

Writing tests feels slow today. It makes you faster tomorrow. Developers who ship reliable software understand the value of testing.

Do you write tests or do you test everything manually?

Share your experience below.

Source: https://dev.to/madoyakimberley/why-every-serious-developer-needs-a-strong-test-suite-even-if-you-hate-writing-tests-b2m