Spark Run local design pattern

Many spark applications have now become legacy applications and it is very hard to enhance, test & run locally. Spark…

Read More »

Unit Testing Anti-Patterns, Full List

I wrote some time ago about anti-patterns in OOP. Now it’s time to write about unit testing anti-patterns—because they also…

Read More »

Simple Testing Can Prevent Most Critical Failures

Error handling is one of the hardest and ignored part of software development and if system is distributed then this…

Read More »

@ParameterizedTest with null values in @CvsSource

Writing parameterized tests in JUnit 4 was pretty cumbersome. JUnit 5 introduced several useful improvements to the framework and running…

Read More »

Blow up Your JUnit5 Tests with Permutations

Writing JUnit tests can be a tedious and boring process. Learn how you can improve your tests classes using permutations…

Read More »

Testing Kotlin with Spock Part 3 – Interface default method

Kotlin allows you to put method implementation in an interface. The same mechanism can be found in Java interfaces as…

Read More »

The Truth About AI and Test Automation

Software testing has gradually evolved in the past few decades. In the past, teams were accustomed to the waterfall methodology:…

Read More »

ActiveMQ Performance Testing

We use ActiveMQ as our messaging layer – sending large volumes of messages with a need for low-latency. Generally it…

Read More »

Java: Mocking a ResultSet using Mockito

This post shows how you can mock a java.sql.ResultSet using Mockito. It can be used to help unit test code…

Read More »