What Is Testable Code?

Testable code is code that makes automated testing quick, easy, and enjoyable. In this course, Writing Testable Code, you'll learn how to write code that is easy to test. These skills are necessary to refactor code that is difficult to test into code that is easily testable.

What is meant by testable code?

Writing testable code means that the smallest components are independently verifiable. In order to do this, each component must have its dependencies injected into it. This means that code can't reference global variables or use read/write singletons or service locators, etc.

Is testable code better code?

Many of the best practices for writing testable code also conform to general code best practices. Code that is easily testable often also tends to be highly maintainable and resilient against changing business requirements.