Misleading description for difference-of-squares exercise

[Stexxe]

The description of the difference-of-squares exercise states:

Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.

Why do I have to make the tests for squareOfSum and sumOfSquares functions pass if I can code a solution without them by using a formula?

[keiravillekode]

Exercism uses a Test Driven Development (TDD) approach. The detailed requirements are often not fully expressed in the description but are contained in the tests.

This isn't specific to the WebAssembly track. The problem-specifications are shared across languages, including exercise descriptions and test cases.