BDD in Action


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BDD in Action: Behavior-Driven Development for the whole software lifecycle

How John. BDD in Action. What industry do you think your business is most related to? Free features. Deliverables PSD. We've found some similar contests you might like. Dan North suggests starting with scenarios; how he defines scenarios is more commonly called a test objective. However, the natural tendency is to have larger tests. Breaking tests down into small, manageable and maintainable chunks is a discipline that has to be practiced to learn.

In ABT, anyone on the project can write test objectives that identify what has to be tested, and then detail the task or workflow using actions keywords. This style test can be created quickly regardless of how the tests will be executed. Also, with ABT, adding tests built upon already defined tests and actions is easy, scaling test development rapidly to high volume suites.

BDD in Action: Behavior-Driven Development for the whole software lifecycle [Book]

ABT starts with defining test modules which prescribe what tests will be included in each module. This is followed by defining test objectives in a cause and effect syntax. The test objective describes what each test case is supposed to do. The test scenario has three test cases that require only five actions.

Benefits and protential challenges of BDD

The ABT template can be found here. When learning the syntax for writing ABT tests, the easiest part for everyone to grasp is the aspect of reusable actions to create low maintenance small tests. The part of ABT that is, for many people, the most effective is creating actions that can be reused and shared with teams. This is the keyword-driven aspect ABT was built on.

The ability to create and string together small, simple actions into bigger, feature-rich actions describing multi step tasks makes test case writing fast. Whole workflows or end-to-end scenarios can be contained in single actions this way, conceptually like using Lego blocks. This is also a very low maintenance approach since any change in the system under test only requires change or maintenance to one or just a few individual l actions.

Any bigger action containing the smaller action would not be impacted. They solve different problems and have different best uses. Here are some examples. Situation 1 — The scrum team does not fully understand the user stories or product.


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The user stories are not very detailed or the product has complicated domain specific tasks where the dev team may have only a high level knowledge of the workflow and domain. Big bonus for the team. Situation 2 — Programmers do no unit tests, testers do all automation and regression.

BDD in Action Behavior driven development for the whole software lifecycle OUT

Programmers can write Given-When-Then statements and use a common unit test harness, such as JBehave for automated unit tests. Situation 3 — Test team lacks programming skill. Domain knowledgeable team testers, POs, subject matter experts, business analysts can write the various test objectives and conditions without concern for how the automation will get executed. An automation engineer using an action based automation tool, like TestArchitect, can automate and support about a dozen domain knowledge people.

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Situation 4 — A highly skilled, fully Agile team. Programmers can use BDD to better specify the system behavior. Action based test modules and test objectives can be developed at the same time. The ABT tests bigger, longer, more complex tests can be automated. Situation 5 — Your product has multiple platforms or devices and you need a lot of high volume automation.

Use ABT to design tests. Since ABT focuses on test design separate from the execution, the same tests can be executed across various platforms. An automation engineer, using a cross-platform tool, can change the implementation of the automation and the bulk of the work- developing the tests- might not change at all. This two day course is a practical and hands-on introduction to Test Driven Development and Behaviour Driven Development.

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Students will learn how to write high-quality unit tests, or more precisely, "executable specifications", to write better designed, more maintainable and more reliable code. Students will also discover how BDD helps keep development focused on the real requirements, resulting in a higher quality product for the end user.

These are skills that every developer needs to master. Interested in attending? Have a suggestion about running this event near you? Register your interest now.

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