Intent of terminalEnvironment.test|title=Workbench - TerminalEnvironment addTerminalEnvironmentKeys should override existing LANG|occurrence=1, terminalEnvironment.test|title=Workbench - TerminalEnvironment addTerminalEnvironmentKeys should fallback to en_US when no locale is provided|occurrence=1, +1

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.