Unit tests in Magento 2

 

What is a Unit test?

Unit tests are one of the quality tests used for testing a single unit of PHP code in isolation. They are usually written during development using test-driven development (TDD). For more information, check Magento testing guide. 

 

Unit test goals 

Below there are some of the most important unit test goals:

• Test individual units to define what one or another part of code is responsible for;
• Create regression tests that help to demonstrate that the entire system still works (or not) after changes;
• Detection of problems in early stages.

 

Unit test value 

The greatest value for a store owner is that the extension works as promised. For a developer the greatest value comes with assessing:

• Whether the extension/store is stable at any given moment;
• Environment-specific bugs;
• Simple module customization;
• Development quality;
• Minimum amount of setup;
• Code coupling and store component cross-dependencies.

 

Are all Magento 2 extensions come with unit tests?

Most Aheadworks Magento 2 extensions come with unit tests. Once the extension is installed the test can be run to prove and control that the most important business-logic-related parts of the specific module are functioning well.