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Editorial Team
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Asked: 2026-05-14T18:15:30+00:00

I’m considering remaking my blog(currently in PHP, but <100 lines of non-layout code) in

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I’m considering remaking my blog(currently in PHP, but <100 lines of non-layout code) in Ruby on Rails just for the fun of it. I want to make another project in Rails, but I should learn Rails(more than hello world) before I go to try to create a full project.

Another thing I want to do while remaking my blog is to at least figure out what TDD is all about. So how would you go about taking a Test Driven approach to the creation of a blog? What tests would you write? How would you begin?

Everytime I visualize writing a blog it’d end up needing a million tests for a single component to fully test it. How do I avoid writing too many tests?

Also, I am making this community wiki because I intend for this to basically be made into a mini tutorial/knowledge base…

I went ahead and put a bounty on this question so maybe I can actually get a good answer to this..

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1 Answer

  1. Editorial Team

    TDD is more about design then it is about testing. A lot of people miss this and will end up practicing something which doesn’t quite feel like TDD. With TDD, you are writing a test to drive a change in your code. You shouldn’t need to worry about writing too many tests, because you should only have a test to write if there is more production code to write (and therefore, more code to test). Again, TDD is NOT about just writing lots of tests for your code, but you will end up with lots of tests and hence, you will have a very powerful suite of tests to give you feedback as your code grows and changes.

    Rather then talking about how to test drive the development of some particular piece of software, I’d recommend you read up and learn how to practice TDD and figure out, as you said, what its all about. One good book to consider is: Growing Object Oriented Software, Guided by Tests. The book uses Java, but it is a great real-life application of using TDD to build a fairly complex piece of software.

    There’s a lot to TDD, and I would recommend really digging in to a few good sources if you want to learn and try to practice it because there is more than can be brought up in answers to this question.

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