minetest/games/devtest/mods/unittests/inventory.lua

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local item_with_meta = ItemStack({name = "air", meta = {test = "abc"}})
local test_list = {
ItemStack("air"),
ItemStack(""),
ItemStack(item_with_meta),
}
local function compare_lists(a, b)
if not a or not b or #a ~= #b then
return false
end
for i=1, #a do
if not ItemStack(a[i]):equals(ItemStack(b[i])) then
return false
end
end
return true
end
local function test_inventory()
local inv = minetest.create_detached_inventory("test")
inv:set_lists({test = {""}})
assert(inv:get_list("test"))
assert(inv:get_size("test") == 1)
assert(inv:set_size("test", 3))
assert(not inv:set_size("test", -1))
assert(inv:get_width("test") == 0)
assert(inv:set_width("test", 3))
assert(not inv:set_width("test", -1))
inv:set_stack("test", 1, "air")
inv:set_stack("test", 3, item_with_meta)
assert(not inv:is_empty("test"))
assert(compare_lists(inv:get_list("test"), test_list))
assert(inv:add_item("test", "air") == ItemStack())
assert(inv:add_item("test", item_with_meta) == ItemStack())
assert(inv:get_stack("test", 1) == ItemStack("air 2"))
assert(inv:room_for_item("test", "air 99"))
inv:set_stack("test", 2, "air 99")
assert(not inv:room_for_item("test", "air 99"))
inv:set_stack("test", 2, "")
assert(inv:contains_item("test", "air"))
assert(not inv:contains_item("test", "air 99"))
assert(inv:contains_item("test", item_with_meta, true))
-- Items should be removed in reverse and combine with first stack removed
assert(inv:remove_item("test", "air") == item_with_meta)
item_with_meta:set_count(2)
assert(inv:remove_item("test", "air 2") == item_with_meta)
assert(inv:remove_item("test", "air") == ItemStack("air"))
assert(inv:is_empty("test"))
-- Failure of set_list(s) should not change inventory
local before = inv:get_list("test")
pcall(inv.set_lists, inv, {test = true})
pcall(inv.set_list, inv, "test", true)
local after = inv:get_list("test")
assert(compare_lists(before, after))
local location = inv:get_location()
assert(minetest.remove_detached_inventory("test"))
assert(not minetest.get_inventory(location))
end
unittests.register("test_inventory", test_inventory)