Tutorial 6 – Introduction to Lambda III: Serverless Databases
Introduction to lambda behave
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Are you a Java developer and you've seen the fluent and modern specification frameworks available in other programming languages such as spock or jasmine and wondering why we can't have the same thing? Then Lambda Behave is made for you! It uses numerous Java 8 features in order to enable cleaner and more readable tests and specifications. This quickie will introduce the framework, explain why you would want to use it over junit and cover some of its cool features, including: * How to write fluent and clean specifications in your domain language * How to write data driven specifications * How to integrate these into your build tool or IDE * How IDE usage can influence library design for the better http://richardwarburton.github.io/lambda-behave/
Transcript of Introduction to lambda behave
Lambda BehaveA modern testing and behavioural specification framework for Java 8
@richardwarburto
Talk Outline
What do I want in a testing framework?
Live Coding Examples
Comparison with other frameworks
Summary
What do I want in a testing framework?
Write a feature description in business domain terms
Parameterise different configurations
Property Based Testing:
Automatically generate your testcases based upon a property
Live Coding
Conclusions & Summary
Junit doesn’t offer the fluency or features of lambda-behave
Cucumber: Regex some text in order to execute code
Spock & ScalaTest are great but not Java based
Conclusions & Summary
Future Improvements
● Plugin API○ Support for Spring & Vertx
● Improved generators & mocking
● HTML Reports
● Expectation logs
● Heisentest Detector
● Support parallel runners
● Support concurrent tests better
Summary
● Existing testing solutions either unreadable or convoluted
● Lambda Behave offers a fluent and modern testing style
● Rapidly adding features○ Help welcome and wanted!○ Github issues + pull requests○ https://github.com/RichardWarburton/lambda-
behave
Links & Info
Project Website:http://richardwarburton.github.io/lambda-behave/
Maven Central Coordinatescom.insightfullogic:lambda-behave:0.3
Bookhttp://tinyurl.com/java8lambdas
Training Websitehttp://java8training.com/
Bloghttp://insightfullogic.com
Questions?@richardwarburto
