Must-know intermediate unit testing skills

While unit testing fundamentals provide an essential foundation, data engineering frequently necessitates a more profound comprehension and a broader set of testing skills. Complex, high-volume data transformations and operations need more sophisticated testing strategies to ensure your pipelines’ robustness, dependability, and effectiveness.

We’ll begin by discussing parameterized testing, a technique enabling you to execute the same test case with various input values, expanding your test coverage without duplicating code. Then, we will conduct performance and duress testing to ensure that your code can withstand the demands of actual data operations.

Parameterized tests

Parameterized tests allow you to run the same unit test but with multiple inputs of different data. This allows you to test different scenarios in less code rather than writing out multiple tests.

The following is an example of a parameterized test...