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Modern Testing Tools for Java Developers

Elias is a Principal Engineer at Backbase with a background in software engineering, consulting, agile coaching, and tech lead. He helps software engineers to develop their quality mindset and deliver bug-free software. He specializes in Quality Engineering for backend, frontend, and mobile technologies. He’s a writer, blogger, and loves to help the community by running meetups and sharing knowledge by giving presentations worldwide.

He’s also an Oracle ACE for Java, DevOps and Cloud Native, Java Magazine NL editor, TDC Rockstar, and Browserstack Champion.


We are, constantly, evolving the codebase by applying the best development practices, approaches, and design patterns. There’s a lot of support from frameworks and libraries to do this during the SDLC.

How about one of the most important and, sometimes, missed things: quality! How the quality evolves within the adoption of new versions of development frameworks and libraries?

This talk will show you 5 libraries you can use, as a Java Developer, to improve the application quality with real-world examples.

AssertJ will give you infinity assertion possibilities compared to JUnit internals and Hamcrest matches, enabling you to easily use any kind of assertion, even creating your own.

You will learn how to use these tools with real-world examples!

PiTest will increase, even more, the coverage of your tests by applying the mutation testing technique and creating bullet-proof unit tests.

RestAssured will take your API tests to the next level where, using it as a “hard user”, can ease the test creation based on an OpenAPI specification.

Awaitility will solve one of the biggest problems in the API tests: asynchronous calls/messages (mainly in a messaging system). We will be able to wait for the request to be completed to assert any result.

Wiremock will give you the ability not only restricted as a mock solution for your unit and integration test but as a service virtualization tool solving common problems in an integrated environment.

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