code/modules/unit_tests/lungs.dm

/datum/unit_test/lungs	Tests the standard, plasmaman, and lavaland lungs organ to ensure breathing and suffocation behave as expected. Performs a check on each main (can be life-sustaining) gas, and ensures gas alerts are only thrown when expected.
/datum/unit_test/lungs/lungs_sanity_plasmaman	Tests the Plasmaman lungs organ to ensure Plasma breathing and suffocation behave as expected.
/datum/unit_test/lungs/lungs_sanity_ashwalker	Tests the lavaland/Ashwalker lungs organ. Ensures they can breathe from the lavaland air mixture properly, and suffocate on inadequate mixture.