Best practices in unit test creation

When creating unit test cases, you should follow the best practices to produce consistent unit test cases to test every possible case properly. Consider the following points to create good test cases:

• Arrange, Act, and Assert (AAA)
• Write deterministic tests
• Write good test names and descriptions
• Write tests before or during development (TDD)
• Leverage automated tests
• Using mocks and stubs

Let’s understand each of these points in more detail in the next subsections.

Arrange, act, and assert

When structuring your unit test suite for enterprise applications, following the AAA approach is recommended to improve readability and easy understanding of your unit test suite. It improves the test readability by giving it a logical flow. It can also be referred to as the Given/When/Then (GWT) strategy.

GWT is a semi-structured way of writing down test cases. These test cases can either be manually tested or...