What are the differences between acceptance tests and unit tests?

What are the differences between acceptance tests and unit tests?

Acceptance tests are high-level tests that validate the end-to-end functionality of a system, ensuring it meets business requirements. Unit tests, on the other hand, focus on individual components or functions to verify that they work as intended.

Can you give me examples of each type of test?

Sure! An example of an acceptance test could be verifying that a user can successfully log in to a website. A unit test example might involve testing a function that calculates the sum of two numbers.

Why are both types of tests important?

Both types of tests are crucial for different reasons. Acceptance tests ensure the overall system meets user needs, while unit tests help catch bugs early in the development process, making code easier to maintain.

How do I decide which tests to write?

Start by identifying critical user journeys for acceptance tests, and for unit tests, focus on the most complex or frequently used functions in your code.