Behavior-Driven Development for Everyone

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# Behavior-Driven Development<br />for Everyone

## Amitai Schleier

### 2017/08/15

???

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2. Press 'P' to show these here presenter notes

### 50 minutes

Problems are better solved when you're better involved. That's how you
make your living, and that's what BDD is all about. We'll work together
to solve a problem in a way we can all understand and trust, expressing
what we want in plain English and automating our tests with a tool
called Cucumber. Don't worry, you won't be put on the spot at the
keyboard -- I'll handle all the coding!

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1. **Learn** what BDD _isn't_, and what it is
2. **See** an approximation of what BDD can be like
3. **Consider** the possible value of BDD in your context
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- Basically the same as Test-Driven Development
- Programmers do it behind the scenes
- A kind of automated test
- A software tool
- Requires a software tool
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- Everyone on the team does it **together**
- A shared focus on overall **system behavior**
- Enough **shared language** to deliver on that focus
- _May_ result in **automated acceptance tests**
- _May_ be more valuable with a **supporting tool**
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Can we use it to **work together more effectively**?

If we can't, then it's not important!

If we can, then it is.
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I'm not a great programmer. Especially in front of a crowd like this.

I'm hardly a BDD expert. I've **learned by doing**, and continue to.

BDD is most useful when applied by people who:

- Want to do work that **matters**
- Accept the **limits** of their knowledge
- Are willing to **ask** for, and **offer**, help
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If I develop it **all by myself**, there's **no BDD**.

If we think, try, check, learn, and solve it **together**, that might well be BDD.

It helps to focus on the smallest end-to-end **system behavior** we want next.

It helps to use **words we all understand** in the same way.

It helps to use our words of understanding to **verify the system**.

_If_ we want to verify our understanding automatically, we can use a
**software tool**.
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BDD relies on examples.

BDD might be best explained **with** examples.
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For every role that has an interest in what it means for a story to be
**valuable**, **ready**, and **done**, we'd want to hear from someone
representing that interest. Usually one each of:

- Product Owner
- Tester
- Developer

For today, pretend that we've already had these conversations.
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I'll briefly explain what I know of the rules of bowling.

Our job is to keep score for one player's game.

Questions?

Let's develop!
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- [Introducing BDD](http://dannorth.net/introducing-bdd/) ([Dan North](https://twitter.com/tastapod), dannorth.net, March 2006)
- [The Three Amigos: All For One, One For All](http://www.stickyminds.com/sites/default/files/magazine/file/2013/3971888.pdf) ([George Dinwiddie](https://twitter.com/gdinwiddie), _Better Software_, November/December 2011)
- [What is BDD?](http://lizkeogh.com/2015/03/27/what-is-bdd/) ([Liz Keogh](https://twitter.com/lunivore), lizkeogh.com, March 2015)
- [The Bowling Game Kata](http://butunclebob.com/ArticleS.UncleBob.TheBowlingGameKata) ([Robert C. Martin](https://twitter.com/unclebobmartin), butunclebob.com, 2005)
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## <a href="https://agilein3minut.es/">agilein3minut.es</a>

> "Before Agile in 3 Minutes, I couldn't get my team to have a
> conversation about important topics. Now I have to timebox it."

- <a href="https://agilein3minut.es/8">8: Care</a>
- <a href="https://agilein3minut.es/9">9: Pair</a>
- <a href="https://agilein3minut.es/32">32: Mob</a>
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## [leanpub.com/agilein3minutes<br />/c/tac17](https://leanpub.com/agilein3minutes/c/tac17)

The simplest _essays_ that could possibly work. $4 USD today!
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# Behavior-Driven Development<br />for Everyone

## Amitai Schleier

### [schmonz.com](https://schmonz.com)