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testingkarateweb-api-testing

How to Feature file keywords are wired to java Code in Karate?

I have recently started using Karate frame work for my API tests cases. It was great. But I was wondering how the feature files are getting parsed ? How to wiring is done in Karate ? 

* def handler = function(msg){ return msg.startsWith('hello') }
* def socket = karate.webSocket(demoBaseUrl + '/websocket', handler)
* socket.send('Billie')
* def result = socket.listen(5000)
* match result == 'hello Billie !'

In the above code.. "Karate.websocket" is calling which method in framework ?

Solution

  • Karate uses a JVM-based JavaScript engine that makes calling any Java code on the class-path very easy.

    To answer your question, the webSocket() method is in the ScenarioBridge class. This class is injected into the feature file with the name karate at run-time.