Transcript specflow-presentation

BDD with SpecFlow
Why BDD?
1. BDD helps build the right thing.
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Traditionally there are many handoffs Requirements, development,
component testing, integration testing
and finally customer usage.
BDD shares a specification through all
stages of development.
Why BDD?
2. BDD documents what is actually built
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Documentation reflects how the system
actually behaves.
Documentation is up-to-date and
accurate.
Good for long-term maintenance.
Good for training new staff.
Good for communicating with other
teams.
How
BDD?
• Up front, Product Managers, developers
and QA define the behavior of the
system collaboratively.
• They write a specification.
• The specification defines what Product
Owners want, what developers build
and what QA tests.
• The specification is used as a target for
implementation and a means to validate
the product.
Why not TDD?
1. Details are lost when translating from
business requirements to traditional
MSTest unit tests.
2. With many handoffs it’s very easy to
have a full set of tests and still build the
wrong software.
3. MSTest functional tests are inaccessible
to product stakeholders.
BDD Frameworks:
xBehave or xSpec?
• SpecFlow is xBehave-based
• xBehave Benefit: stakeholders can
read and understand the tests
• Comparison:
http://stackoverflow.com/questions/30
7895/what-is-the-most-mature-bddframework-for-net
Overview
• SpecFlow
SpecFlow adds a thin
layer on top of
traditional automated tests.
1. Specification - readable text
2. Binding - maps from readable text>code
3. MSTest (Behind the scenes)
• Traditional Automated Tests
• MSTest -> System
• SpecFlow Tests
SpecFlow - One Time
Setup
1. Install Visual Studio Plugin
2. nuget: Install-Package SpecFlow
3. Add to app.config:
<specFlow>
<unitTestProvider name=”MsTest”/>
</specFlow>
Next Steps
•Install Visual Studio Plugin:
•http://visualstudiogallery.msdn.microsoft.co
m/9915524d-7fb0-43c3-bb3ca8a14fbd40ee
•Does SpecFlow replace all our functional
tests? No... not yet.
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SpecFlow - Workflow & key examples
Traditional Functional Tests - everything
else