* Unit Tests for AI Planning Subtrees not having required element/component (#77539)
## About The Pull Request
Hey there,
I've personally fallen for this stupid thing twice (in #77503 and #75627
(d3575161ca)), so I decided to spend a few
hours to crack out a unit test to ensure that I (and no one else) falls
for this stupid thing again.
Let me know if there's a smarter way to code something like this, but I
couldn't figure out a better way to accomodate the current framework and
be as agnostic to certain oddities as possible.
## Why It's Good For The Game
Catches stuff like this:
```txt
[2023-08-11 21:10:04.019] FAILURE #1: The mob Garden Gnome does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #2: The mob the morph does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #3: The mob the guard spiderling (946) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #4: The mob the ambush spiderling (255) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #5: The mob the scout spiderling (375) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #6: The mob the flesh spiderling (337) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #7: The mob the hunter spiderling (869) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #8: The mob the nurse spiderling (629) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #9: The mob the tangle spiderling (19) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #10: The mob the broodmother spiderling (855) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #11: The mob the viper spiderling (519) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #12: The mob the tarantula spiderling (963) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
- FAILURE #13: The mob the spiderling (100) does not have ANY instances of TRAIT_SUBTREE_REQUIRED_ELEMENT, but has a planning subtree (/datum/ai_planning_subtree/target_retaliate/to_flee) that requires it! at code/modules/unit_tests/ensure_subtree_element.dm:45
```
(ignore the part about gnomes and morphs, this was an earlier version of
the unit test. everything else was relevant and is fixed)
## Changelog
🆑
fix: Growing spiders will now retaliate against you like they were
always meant to.
/🆑
* Unit Tests for AI Planning Subtrees not having required element/component
---------
Co-authored-by: san7890 <the@san7890.com>
