ConnectionPropertiesTest cannot be run individually. It requires the default connection to exist.
Furhtermore it will fail if run in JBT (not in Devstudio) because the bot test wont find any content in the Properties view. This is because JBT by default has the OpenShift Explorer and the properties view sitting in the same stacked view. In this setup there's no selection in the explorer that can be displayed in the Properties view.