In short
Testing the smallest independent pieces of code — a single function or component — in isolation from the rest of the system.
How to learn this
- 1Write unit tests for 3-4 pure functions in one of your projects.
- 2Practice testing edge cases (empty input, zero, negative numbers), not just the happy path.
- 3Learn the AAA pattern: Arrange, Act, Assert.
More topics at this stop
Stuck on this topic? Ask an Insider
Get 1:1 guidance from people who've walked this exact path — on the InsideEdge app.
