C# and .NET Core Test-Driven Development

Code smell

Code smell is a term that was first used by Kent Beck, which indicates deeper issues in the source code. Code smell in a code base can come from having replications in the source code, use of inconsistent or vague naming conventions and coding styles, creating methods with a long list of parameters, and having monster methods and classes, that is methods or classes that know and do too much thereby violating the single responsibility principle. The list goes on and on.

A common code smell in the source code is when a developer creates two or more methods that perform the same action with little or no variation or with program details or facts that ought to be implemented in a single point replicated in several methods or classes, ...