Code is there. Just in case. We might need it soon.

Problems

• Complexity

• Coupling

Solutions

1. Remove dead code.

2. Leave covered and real tested code.

Sample Code

Wrong

Right

Detection

Using some mutation testing variants we can remove the dead code and see it test fails.

We need to have good coverage to rely on this solution.

Tags

• YAGNI

Conclusion

Dead code is always a problem.

We can use modern development techniques like TDD to ensure all code is alive.

How to Squeeze Test Driven Development on Legacy Systems

Maxi Contieri ・ Nov 26 '20 ・ 7 min read

#oop #tutorial #tdd #legacy

Relations

Code Smell 09 - Dead Code

Maxi Contieri ・ Oct 28 '20 ・ 1 min read

#codenewbie #tutorial

More info

Exception not Found

Wikipedia

Credits

Photo by Kris Mikael Krister on Unsplash

It is very hard to predict, especially the future.

Niels Bohr