Integration Testing with Jimfs virtual Filesystems

In various test cases, primarily those covering components that interact with the filesystem and use filesystem entitites for a convention-based operation, it perfectly makes sense to provide a filesystem resource in an expected state to assess the component-under-test’s behavior. To provide a resource in an expected state, the classic approaches are: Have a handcrafted directory […]

Word Frequency in 5 Programming Languages (Java, Scala, Go, C++, R)

Java 8

  Golang

Scala

R

C++

Performance Testing with Apache jMeter

Designing and implementing distributed systems, both customer-faced or just datacrunching farms, one is soon required to determine performance impacts and possible bottlenecks. In this specific case, I wanted to gain information regarding the limits and scalability aspects of a customer-facing web application which also manages a high number of connected devices. Why Apache jMeter The […]

Turning a spare Dreamplug mini-PC into a remote-controllable audio player

My company gave away a couple of abandoned spare devices previously used for evaluation purposes. So, I got hands on a dreamplug, a socket-plugin sized mini computer (ARM based) with decent power, low energy consumption, integrated dual Ethernet, WiFi, Bluetooth and, most important, an optical audio output – in other words: a Raspberry PI with […]