Skip to main content

Benefits of using BDD

For those that aren't aware, BDD stands for Behaviour Driven Development. It is a style of writing (often) acceptance tests, in a Given, When Then format. I've spoke about them in previous blog posts.

People often say what are the benefits of them? Why not just write normal tests?

Firstly, I feel that BDD isn't just useful as an automation framework, but more of a method of documenting the system that is under test. The Feature files become the documentation, and the great thing is, if the system changes, then the feature files need to be kept up to date to ensure they still pass! Documentation that is always kept up to date sounds too good to be true right!? Not with BDD!!! It provides a living specification of the software under test.

Secondly, BDD is a method of getting teams to discuss Acceptance Criteria, and ensuring that teams fully understand the business requirements up front, and it's a great enabler for Acceptance Test Driven Development.

Related to the above, using BDD ensures a common language is adopted for discussing new features and removes a lot of the ambiguity that can sometimes creep into User Stories or PBIs.

So there you have it, what I see as the main benefits of BDD. I'm a big advocator of it, having used it for over a year now, I can safely say it is a great method of creating living documentation and encouraging conversations between relevant parties with the goal of producing quality software.

Comments

  1. Can u teach, how to get started, where in there is no previous BDD at workplace.

    ReplyDelete

Post a Comment

Popular posts from this blog

What is a PBI?

After my last post, I had the question of what is a PBI... so I thought i'd write a short blog post about what they are and why they are used.

A PBI is an acronym for Product Backlog Item. It is a description of a piece of work that your SCRUM team will develop and deliver. When you have a list of Product Backlog Items, you then refer to that collective list as a Product Backlog.

The product backlog is often prioritised and yourteam will work through each PBI, and release on a regular schedule... I am however going deep into the world of Agile development, which isn't entirely what this post is about, so I will stop myself now.

A Product Backlog Item is made up of the following:

Title - This is often a one liner that gives the team an idea of what the PBI is about, although it can just be an ID for the item and the team work off of that.

Description - Breaks down the PBI in a bit more detail, and can be written in any style, however I prefer it to be written as follows: 



By writin…

Dealing with Selenium WebDriver Driver.Quit crashes (Where chromedriver.exe is left open)

We recently came across a problem with Selenium not quitting the webdriver and this would then lock a file that was needed on the build server to run the builds.

We were using Driver.Quit() but this sometimes failed and would leave chromedriver.exe running. I looked around and found this was a common issue that many people were having. We (I say we, as we came to the solution through paired programming), came up with the following, that would encapsulate the driver.quit inside a task and if this task takes longer than 10 seconds, then it will clean up any processes started by the current process, in the case of the issue on the build server, it would kill any process started by Nunit.

[AfterTestRun]
        public static void AfterTestRun()
        {
            var nativeDriverQuit = Task.Factory.StartNew(() => Driver.Quit());
            if (!nativeDriverQuit.Wait(TimeSpan.FromSeconds(10)))
            {
                CleanUpProcessByInheritance();
            }
       }

        private s…

Advantages of using Test Management tools

Before I start talking about test management tools, let me clarify what I mean by the term test Management tools...  I am not taking about your office excel program where you store your test cases in. I'm talking about bespoke test Management tools, your quality centers or Microsoft test manager...
In the strict case of the term test Management tool, Microsoft Excel can be used as such, but heck, so could a notepad if used in the right way... For the sake of this blog post I am talking about bespoke test Management tools.
Firstly, what test tools are out there? There are many more out there today than when I first started in QA over 5 years ago. When I started the market was primarily dominated by a tool called Quality Center, this would run in a browser (only Ie unfortunately) and was hosted on a server.. Nowadays it's market share has somewhat dwindled, and there are some new kids on the block. 
One of the more popular tools is that of Microsoft Test Manager, it's big…