Rafal Borowiec
Java Code Geeks
Poland
Contact Rafał
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Past articles by Rafał:
Playwright meets JUnit 5
Playwright is a Node.js-based tool for automating browsers. It supports all modern rendering engines including Chromium, WebKit and Firefox. Playwright → Read More
Manage multiple Java SDKs with asdf with ease
asdf is a helpful command-line tool that allows you to manage and switch between different versions of programming language runtimes including Java, → Read More
Parameterized tests in JavaScript with Jest
Interested to learn about Parameterized tests? Check our article explaining parameterized tests in JavaScript with Jest. → Read More
Testing promise rejection in JavaScript with Jest
The codeLet’s consider a simple function that returns a Promise that can either resolve or reject depending on the value ofthe first argument:export default function promiseMe(result, tim... → Read More
Testing exceptions in JavaScript with Jest
Interested to learn about Jest? Check our article explaining how to test exceptions in JavaScript with Jest. → Read More
Convert time unit to duration in Java
Interested to learn about time unit? Check our article explaining how to use java.util.concurrent.TimeUnit to convert a given time unit to a duration. → Read More
Switch as an expression in Java with Lambda-like syntax
As of Java 14, the switch expression has an additional Lambda-like (case ... -> labels) syntax and it can be used not only as a statement, but also as an expression that evaluates to a single value. ... → Read More
Record type in Java
Interested to learn about Record type? Check our article explaining about Record type in Java that was first released in JDK14. → Read More
Spring Boot tests with Testcontainers and PostgreSQL, MySQL or MariaDB
Interested to learn about Testcontainers? Check our article talking about testcontainers a Java library that allows integrating Docker containers in JUnit. → Read More
Docker Compose for Spring Boot application with PostgreSQL
Interested to learn about Docker Compose? Check our article explaining how to configure Spring Boot application with PostgreSQL to run with Docker Compose → Read More
Deploy Quarkus application to AWS Elastic Beanstalk
Interested to learn about Quarkus application? Check our article explaining how Elastic Beanstalk allows deploying and managing applications in the AWSCloud → Read More
Quarkus tests with Testcontainers and PostgreSQL
Interested to learn about Testcontainers? Check our article talking about Testcontainers a Java library that allows integrating Docker in JUnit tests. → Read More
Getting started with Quarkus
Interested to learn about Quarkus? Check our article talkingabout Quarkus - A Kubernetes Native Java stack tailored for OpenJDK HotSpot and GraalVM. → Read More
Set Visual Studio Code as default editor in jshell
Java Shell (jshell) is an interactive tool for learning and prototyping in Java. It was introduced with Java 9 and since then I use it ocassionally either for some quick prototyping, during presentat... → Read More
Spring Boot testing with JUnit 5
Interested to learn about Spring Boot testing? Check our article learning about the basic setup for Gradle and Maven based projects with Spring Boot tests → Read More
JUnit 5 and Selenium – Setup the project with Gradle, JUnit 5 and Jupiter Selenium
Interested to learn about test automation? Check our article testing the popular TodoMVC application using Gradle with Java, JUnit 5 and Selenium Jupiter → Read More
Test Execution Order in JUnit 5
Interested to learn about Test Execution Order? Check our article explaining the execution of test methods is repeatable between builds in Junit 5. → Read More
Temporary directories in JUnit 5 Tests
JUnit 4 TemporaryFolder @Rule allowed developers to create tests utilising temporary directories. With JUnit 5, the @Rules are not supported hence testing files and directories required a little bit ... → Read More
JUnit 5 meets AssertJ
JUnit 5 brings a lot of improvements in the assertions library, mainly thanks to Java 8 and Lambda E... → Read More
Asynchrouns and Transactional Event Listeners in Spring
The built-in event publication functionality exists from the early Spring versions and it is still u... → Read More