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. |
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| /datum/unit_test/lungs/lungs_sanity_plasmaman | Tests the Plasmaman lungs organ to ensure Plasma breathing and suffocation behave as expected. |