Linked Questions

104
votes
16answers
35k views

When is unit testing inappropriate or unnecessary? [duplicate]

It seems to be generally assumed (on Stack Overflow at least) that there should always be unit tests, and they should be kept up to date. But I suspect the programmers making these assertions ...
4
votes
5answers
3k views

Are there any cases when one should not use Test Driven Development? [duplicate]

Is it recommended that TDD be always practiced in a project, or are there cases when it should be avoided? Should we all adopt TDD? Is it standard practice in major software companies?
10
votes
2answers
3k views

What kind of code would Kent Beck avoid unit testing? [duplicate]

I've been watching a few of the Is TDD Dead? talks on youtube, and one of the things that surprised me is Kent Beck seems to acknowledge that there are just some kinds of programs that aren't worth ...
3
votes
4answers
987 views

When, Where, and How to Unit Test [duplicate]

I'm very familiar with xUnit frameworks and I try to implement unit tests on every project I start. Somewhere along the way, I realize that I'm writing the same tests over and over again, and then I ...
177
votes
16answers
20k views

Why does automated testing keep failing in my company?

We have tried to introduce developer automated testing several times at my company. Our QA team uses Selenium to automate UI tests, but I always wanted to introduce unit tests and integration tests. ...
68
votes
7answers
15k views

Writing Tests for Existing Code

Suppose one had a relatively large program (say 900k SLOC in C#), all commented/documented thoroughly, well organized and working well. The entire code base was written by a single senior developer ...
62
votes
7answers
16k views

Is it sufficient to use acceptance and integration tests instead of unit test?

Short introduction to this question. I have used now TDD and lately BDD for over one year now. I use techniques like mocking to make writing my tests more efficiently. Lately I have started a ...
59
votes
10answers
18k views

Should we test all our methods?

So today I had a talk with my teammate about unit testing. The whole thing started when he asked me "hey, where are the tests for that class, I see only one?". The whole class was a manager (or a ...
28
votes
11answers
3k views

Do I need to test everything?

I'm going to start my first real project in Ruby on Rails, and I'm forcing myself to write TDD tests. I don't see real advantages in writing tests, but since it seems very important, I'll try. Is it ...
4
votes
7answers
3k views

What is the objective of unit testing? [duplicate]

Possible Duplicate: Is unit testing or test-driven development worthwhile? I've been working with C# for the last 2 years, and I've never done any unit testing. I just need to know what the ...
20
votes
3answers
8k views

Unit testing C++: What to test?

TL;DR Writing good, useful tests is hard, and has a high cost in C++. Can you experienced developers share your rationale on what and when to test? Long story I used to do test-driven development, ...
7
votes
3answers
15k views

How do you unit test a User Interface? [closed]

I use JavaScript with JQuery for a Rails application. I have some dynamic behaviour in this one. As a Ruby developper, I like TDD/BDD, specialy with RSpec. For the moment, I test my JavaScript manualy....
1
vote
3answers
333 views

What cannot be unit-tested in mobile app?

I really value unit-testing in developing webapps. I haven't had any experience in developing mobile apps. Is there anything that cannot be unit-tested in mobile apps? And what is the workaround for ...
1
vote
2answers
781 views

How to approach the understanding, documentation and validation of legacy code [duplicate]

I've been tasked with studying a Python code, which runs on an orchestrator, which schedule the launch of the code in correspondence of some events. The code imports some modules, and it's basically ...
0
votes
1answer
150 views

Is it okay to allow a custom assertion to return something?

This is language agnostic. I want to develop a simple custom assertion class using test driven development. The class will have an assert method called assertCarIsNotDamaged which will check if a ...