[MIRROR] Unit test for black market items. Added missing bulwark module and jawed hook to the market. (#27637)

* Unit test for black market items. Added missing bulwark module and jawed hook to the market. (#82972)

## About The Pull Request
Jacq has come up with the suggestion of adding a unit test to the
blackmarket. I agreed ~~and I think I deserve the NO GBP label because
both of these missing items are actually my fault~~.

## Why It's Good For The Game
Let's avoid issues like this in the future.

## Changelog

🆑
fix: Added the missing bulwark MOD module and the jawed fishing hook to
the black market.
/🆑

* Unit test for black market items. Added missing bulwark module and jawed hook to the market.

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/modules/cargo/markets/market_item.dm

@@ -16,6 +16,9 @@
 	/// Path to or the item itself what this entry is for, this should be set even if you override spawn_item to spawn your item.
 	var/atom/movable/item
 
+	/// Used to exclude abstract/special paths from the unit test if the value matches the type itself.
+	var/abstract_path
+
 	/// Minimum price for the item if generated randomly.
 	var/price_min = 0
 	/// Maximum price for the item if generated randomly.
@@ -25,7 +28,7 @@
 	/// Maximum amount that there should be of this item in the market if generated randomly.
 	var/stock_max = 0
 	/// Probability for this item to be available. Used by SSblackmarket on init.
-	var/availability_prob = 0
+	var/availability_prob
 
 	///The identifier for the market item, generated on runtime and used to access them in the market categories.
 	var/identifier

code/modules/cargo/markets/market_items/clothing.dm

@@ -1,5 +1,6 @@
 /datum/market_item/clothing
 	category = "Clothing"
+	abstract_path = /datum/market_item/clothing
 
 /datum/market_item/clothing/ninja_mask
 	name = "Space Ninja Mask"

code/modules/cargo/markets/market_items/consumables.dm

@@ -1,5 +1,6 @@
 /datum/market_item/consumable
 	category = "Consumables"
+	abstract_path = /datum/market_item/consumable
 
 /datum/market_item/consumable/clown_tears
 	name = "Bottle of Clown's Tears"

code/modules/cargo/markets/market_items/hostages.dm

@@ -1,6 +1,7 @@
 ///A special category for mobs captured by pirates, tots and contractors, should someone ever want to get them back in advance.
 /datum/market_item/hostage
 	category = "Hostages"
+	abstract_path = /datum/market_item/hostage
 	stock = 1
 	availability_prob = 100
 	shipping_override = list(SHIPPING_METHOD_LTSRBT = 0, SHIPPING_METHOD_SUPPLYPOD = 350)

code/modules/cargo/markets/market_items/misc.dm

@@ -1,5 +1,6 @@
 /datum/market_item/misc
 	category = "Miscellaneous"
+	abstract_path = /datum/market_item/misc
 
 /datum/market_item/misc/Clear_PDA
 	name = "Clear PDA"
@@ -53,6 +54,7 @@
 /datum/market_item/misc/shove_blocker
 	name = "MOD Bulwark Module"
 	desc = "You have no idea how much effort it took us to extract this module from that damn safeguard MODsuit last shift."
+	item = /obj/item/mod/module/shove_blocker
 	price_min = CARGO_CRATE_VALUE * 4
 	price_max = CARGO_CRATE_VALUE * 5.75
 	stock_max = 1
@@ -108,6 +110,7 @@
 /datum/market_item/misc/jawed_hook
 	name = "Jawed Fishing Hook"
 	desc = "The thing ya use if y'are strugglin' with fishes. Just rememeber to whoop yer rod before it's too late, 'cause this thing's gonna hurt them like an Arkansas toothpick."
+	item = /obj/item/fishing_hook/jaws
 	price_min = CARGO_CRATE_VALUE * 0.75
 	price_max = CARGO_CRATE_VALUE * 2
 	stock_max = 3

code/modules/cargo/markets/market_items/stolen_goods.dm

@@ -1,6 +1,7 @@
 ///A special category for goods stolen by spies for their bounties.
 /datum/market_item/stolen_good
 	category = "Fenced Goods"
+	abstract_path = /datum/market_item/stolen_good
 	stock = 1
 	availability_prob = 100
 

code/modules/cargo/markets/market_items/tools.dm

@@ -1,5 +1,6 @@
 /datum/market_item/tool
 	category = "Tools"
+	abstract_path = /datum/market_item/tool
 
 /datum/market_item/tool/blackmarket_telepad
 	name = "Black Market LTSRBT"

code/modules/cargo/markets/market_items/weapons.dm

@@ -1,5 +1,6 @@
 /datum/market_item/weapon
 	category = "Weapons"
+	abstract_path = /datum/market_item/weapon
 
 /datum/market_item/weapon/bear_trap
 	name = "Bear Trap"

code/modules/unit_tests/_unit_tests.dm

@@ -101,6 +101,7 @@
 #include "bespoke_id.dm"
 #include "binary_insert.dm"
 #include "bitrunning.dm"
+#include "blackmarket.dm"
 #include "blindness.dm"
 #include "bloody_footprints.dm"
 #include "breath.dm"

code/modules/unit_tests/blackmarket.dm

@@ -0,0 +1,23 @@
+/// Ensures black market items have acceptable variable values.
+/datum/unit_test/blackmarket
+
+/datum/unit_test/blackmarket/Run()
+	for(var/datum/market_item/prototype as anything in subtypesof(/datum/market_item))
+		if(prototype::abstract_path == prototype) //skip abstract paths
+			continue
+		if(!prototype::category)
+			TEST_FAIL("[prototype] doesn't have a set category (or the abstract path var isn't correctly set)")
+			continue
+		if(!prototype::item)
+			TEST_FAIL("[prototype] doesn't have a set item (or the abstract path var isn't correctly set)")
+			continue
+		if(isnull(prototype::price) && prototype::price_max <= prototype::price_min)
+			TEST_FAIL("[prototype] doesn't have a correctly set random price (price_max should be higher than price_min)")
+		if(isnull(prototype::stock) && prototype::stock_max < prototype::stock_min)
+			TEST_FAIL("[prototype] doesn't have a correctly set random stock (stock_max shouldn't be lower than stock_min)")
+		if(!isnum(prototype::availability_prob))
+			TEST_FAIL("[prototype] doesn't have a set availability_prob (must be a number)")
+		if(!prototype::name)
+			TEST_FAIL("[prototype] doesn't have a set name")
+		if(!prototype::desc)
+			TEST_FAIL("[prototype] doesn't have a set desc")