This IntelliJ plugin plays the "yippee" sound effect every time your tests pass! 🎉
It was hacked together based on Dmitry Kandalov's Friday Mario plugin which adds sound effects to common IDE actions.
Open the project in IntelliJ IDEA and open the Gradle view after everything has indexed etc.
Under Tasks > intellij, double click buildPlugin. After it builds, it produces a zip in build/distributions.
You can then install this manually with Settings... > Plugins > [settings cog icon] > Install Plugin From Disk... and select the zip file from the previous step.