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

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-- helper
core.register_async_dofile(core.get_modpath(core.get_current_modname()) ..
DIR_DELIM .. "inside_async_env.lua")
local function deepequal(a, b)
if type(a) == "function" then
return type(b) == "function"
elseif type(a) ~= "table" then
return a == b
elseif type(b) ~= "table" then
return false
end
for k, v in pairs(a) do
if not deepequal(v, b[k]) then
return false
end
end
for k, v in pairs(b) do
if not deepequal(a[k], v) then
return false
end
end
return true
end
-- Object Passing / Serialization
local test_object = {
name = "stairs:stair_glass",
type = "node",
groups = {oddly_breakable_by_hand = 3, cracky = 3, stair = 1},
description = "Glass Stair",
sounds = {
dig = {name = "default_glass_footstep", gain = 0.5},
footstep = {name = "default_glass_footstep", gain = 0.3},
dug = {name = "default_break_glass", gain = 1}
},
node_box = {
fixed = {
{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
{-0.5, 0, 0, 0.5, 0.5, 0.5}
},
type = "fixed"
},
tiles = {
{name = "stairs_glass_split.png", backface_culling = true},
{name = "default_glass.png", backface_culling = true},
{name = "stairs_glass_stairside.png^[transformFX", backface_culling = true}
},
on_place = function(itemstack, placer)
return core.is_player(placer)
end,
sunlight_propagates = true,
is_ground_content = false,
pos = vector.new(-1, -2, -3),
}
local function test_object_passing()
local tmp = core.serialize_roundtrip(test_object)
assert(deepequal(test_object, tmp))
local circular_key = {"foo", "bar"}
circular_key[circular_key] = true
tmp = core.serialize_roundtrip(circular_key)
assert(tmp[1] == "foo")
assert(tmp[2] == "bar")
assert(tmp[tmp] == true)
local circular_value = {"foo"}
circular_value[2] = circular_value
tmp = core.serialize_roundtrip(circular_value)
assert(tmp[1] == "foo")
assert(tmp[2] == tmp)
-- Two-segment cycle
local cycle_seg_1, cycle_seg_2 = {}, {}
cycle_seg_1[1] = cycle_seg_2
cycle_seg_2[1] = cycle_seg_1
tmp = core.serialize_roundtrip(cycle_seg_1)
assert(tmp[1][1] == tmp)
-- Duplicated value without a cycle
local acyclic_dup_holder = {}
tmp = ItemStack("")
acyclic_dup_holder[tmp] = tmp
tmp = core.serialize_roundtrip(acyclic_dup_holder)
for k, v in pairs(tmp) do
assert(rawequal(k, v))
end
end
unittests.register("test_object_passing", test_object_passing)
local function test_userdata_passing(_, pos)
-- basic userdata passing
local obj = table.copy(test_object.tiles[1])
obj.test = ItemStack("default:cobble 99")
local tmp = core.serialize_roundtrip(obj)
assert(type(tmp.test) == "userdata")
assert(obj.test:to_string() == tmp.test:to_string())
-- object can't be passed, should error
obj = core.raycast(pos, pos)
assert(not pcall(core.serialize_roundtrip, obj))
-- VManip
local vm = core.get_voxel_manip(pos, pos)
local expect = vm:get_node_at(pos)
local vm2 = core.serialize_roundtrip(vm)
assert(deepequal(vm2:get_node_at(pos), expect))
end
unittests.register("test_userdata_passing", test_userdata_passing, {map=true})
-- Asynchronous jobs
local function test_handle_async(cb)
-- Basic test including mod name tracking and unittests.async_test()
-- which is defined inside_async_env.lua
local func = function(x)
return core.get_last_run_mod(), _VERSION, unittests[x]()
end
local expect = {core.get_last_run_mod(), _VERSION, true}
core.handle_async(func, function(...)
if not deepequal(expect, {...}) then
return cb("Values did not equal")
end
if core.get_last_run_mod() ~= expect[1] then
return cb("Mod name not tracked correctly")
end
-- Test passing of nil arguments and return values
core.handle_async(function(a, b)
return a, b
end, function(a, b)
if b ~= 123 then
return cb("Argument went missing")
end
cb()
end, nil, 123)
end, "async_test")
end
unittests.register("test_handle_async", test_handle_async, {async=true})
local function test_userdata_passing2(cb, _, pos)
-- VManip: check transfer into other env
local vm = core.get_voxel_manip(pos, pos)
local expect = vm:get_node_at(pos)
core.handle_async(function(vm_, pos_)
return vm_:get_node_at(pos_)
end, function(ret)
if not deepequal(expect, ret) then
return cb("Node data mismatch (one-way)")
end
-- VManip: test a roundtrip
core.handle_async(function(vm_)
return vm_
end, function(vm2)
if not deepequal(expect, vm2:get_node_at(pos)) then
return cb("Node data mismatch (roundtrip)")
end
cb()
end, vm)
end, vm, pos)
end
unittests.register("test_userdata_passing2", test_userdata_passing2, {map=true, async=true})
local function test_async_metatable_override()
assert(pcall(core.register_async_metatable, "__builtin:vector", vector.metatable),
"Metatable name aliasing throws an error when it should be allowed")
assert(not pcall(core.register_async_metatable, "__builtin:vector", {}),
"Illegal metatable overriding allowed")
end
unittests.register("test_async_metatable_override", test_async_metatable_override)
local function test_async_metatable_registration(cb)
local custom_metatable = {}
core.register_async_metatable("unittests:custom_metatable", custom_metatable)
core.handle_async(function(x)
-- unittests.custom_metatable is registered in inside_async_env.lua
return getmetatable(x) == unittests.custom_metatable, x
end, function(metatable_preserved_async, table_after_roundtrip)
if not metatable_preserved_async then
return cb("Custom metatable not preserved (main -> async)")
end
if getmetatable(table_after_roundtrip) ~= custom_metatable then
return cb("Custom metable not preserved (after roundtrip)")
end
cb()
end, setmetatable({}, custom_metatable))
end
unittests.register("test_async_metatable_registration", test_async_metatable_registration, {async=true})
local function test_vector_preserve(cb)
local vec = vector.new(1, 2, 3)
core.handle_async(function(x)
return x[1]
end, function(ret)
if ret ~= vec then -- fails if metatable was not preserved
return cb("Vector value mismatch")
end
cb()
end, {vec})
end
unittests.register("test_async_vector", test_vector_preserve, {async=true})