What are the different types of code smells for testing a specific programming code?
Code Smells Within Classes
- Comments: Yes, Comments are code smells too.
- Long Method: A long method contains too many lines of code.
- Long Parameter List: Any function with more parameters is obviously more complex.
- Large Classes: A class contains many methods/lines of code/fields is considered a code smell.
What is the relationship between code smells and refactoring?
Bad smells are indicators of code structure problems that may be solved via refactoring. Refactoring is a process of improving the internal structure of the source code without changing the external be- havior of the software system.
What is bad code called?
A bad code is when a programmer or coder do program to get things done faster without thinking much about future changes and ignoring the possibility of other developers touching the code.
How to reduce the length of a method?
To reduce the length of a method body, use Extract Method. If local variables and parameters interfere with extracting a method, use Replace Temp with Query, Introduce Parameter Object or Preserve Whole Object. If none of the previous recipes help, try moving the entire method to a separate object via Replace Method with Method Object.
Which is harder to maintain short or long methods?
Among all types of object-oriented code, classes with short methods live longest. The longer a method or function is, the harder it becomes to understand and maintain it. In addition, long methods offer the perfect hiding place for unwanted duplicate code.
How to move code to a separate method?
Conditional operators and loops are a good clue that code can be moved to a separate method. For conditionals, use Decompose Conditional. If loops are in the way, try Extract Method. Among all types of object-oriented code, classes with short methods live longest.
When to comment on code in a method?
Which means that another line is added and then yet another, giving birth to a tangle of spaghetti code. As a rule of thumb, if you feel the need to comment on something inside a method, you should take this code and put it in a new method.