Test-Driven Development
Learn about test-driven development and how to write a test using the Jest framework.
We'll cover the following
Perhaps a brief explanation of that concept is in order. Test-driven development (TDD) comes from the Extreme Programming movement. Its core idea is to create a test that verifies the code’s behavior before actually writing that code. Let’s write a function that adds two numbers.
Writing test
Before writing code, we’ll create the following test using the Jest framework:
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