add gs

RCCService2021/ExtraContent/LuaPackages/AppTempCommon/LuaApp/MockId.lua

@@ -0,0 +1,17 @@
+--[[
+	A function to return a fake ID, used for testing.
+
+	We turn all IDs into strings as we typically use them as keys in the state.
+	It's better to use a string than a number, because a number would indicate
+	an array index.
+
+	Roblox APIs expect to be given integers for IDs however, so just tonumber()
+	the ID in this case.
+]]
+
+local lastId = 0
+
+return function()
+	lastId = lastId + 1
+	return tostring(lastId)
+end