Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

Get in touch with me:

oren@ravendb.net

+972 52-548-6969

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Couchbase vs RavenDB Performance at Rakuten Kobo Whitepaper

Mar 29 2006

Testing as a motivation

time to read 2 min | 248 words

There has been a lot said about testing and their affect on the code. I just had the tests affect me as I write the code. You are probably aware that I started a new project recently, and I've (as always) taken my time with a lot of spiking on the design.
Even when I am spiking, I feel very nervous without the tests, and because I'm making such profound changes to the application, there are long stretches of times when I can't even get the application to compile.
This mean that thinking about something and seeing it fail (and it always fails the first time) takes very long time. It also means that I waste quite a bit of time in going the wrong direction.

Today was the day when I finally settled on the design that I would have, and started sweeping thorugh the code, looking for stuff that needs to be tested. I think about this an un-legacifying the code that I wrote this past week (which had only two tests, one of them 40 lines long, yuck!).
I added a lot more tests, renamed a couple of methods, applied the Law of Demeter and voila, I got a code base that is a pleasure to work with.
Then I could start writing features using TDD, and get the rapid feedback that I crave. I actually added value today, which is a great feeling to have in the end of the day.

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RECENT COMMENTS

Dmitry, Yes, but this is _known_ to be a 64 bits system - since we are allocating 3GB (not possible in 64 bits). Note t...

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There's a reason we miss `write_exact` and `read_exact` from the standard library. In fact, I am surprised the chunk is actua...

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kpvleeuwen, I agree, unfortunately I don't have anyone to ask off the top of my head. Thanks, I fixed the headers.

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It could be interesting to reach out to storage firmware developers and ask what write patterns they think would be useful ex...

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