minetest/games/devtest/mods/unittests/misc.lua
2024-10-28 15:57:54 +01:00

333 lines
10 KiB
Lua

core.register_mapgen_script(core.get_modpath(core.get_current_modname()) ..
DIR_DELIM .. "inside_mapgen_env.lua")
local function test_pseudo_random()
-- We have comprehensive unit tests in C++, this is just to make sure the API code isn't messing up
local gen1 = PseudoRandom(13)
assert(gen1:next() == 22290)
assert(gen1:next() == 13854)
local gen2 = PseudoRandom(gen1:get_state())
for n = 0, 16 do
assert(gen1:next() == gen2:next())
end
local pr3 = PseudoRandom(-101)
assert(pr3:next(0, 100) == 35)
-- unusual case that is normally disallowed:
assert(pr3:next(10000, 42767) == 12485)
end
unittests.register("test_pseudo_random", test_pseudo_random)
local function test_pcg_random()
-- We have comprehensive unit tests in C++, this is just to make sure the API code isn't messing up
local gen1 = PcgRandom(55)
for n = 0, 16 do
gen1:next()
end
local gen2 = PcgRandom(26)
gen2:set_state(gen1:get_state())
for n = 16, 32 do
assert(gen1:next() == gen2:next())
end
end
unittests.register("test_pcg_random", test_pcg_random)
local function test_dynamic_media(cb, player)
if core.get_player_information(player:get_player_name()).protocol_version < 40 then
core.log("warning", "test_dynamic_media: Client too old, skipping test.")
return cb()
end
-- Check that the client acknowledges media transfers
local path = core.get_worldpath() .. "/test_media.obj"
local f = io.open(path, "w")
f:write("# contents don't matter\n")
f:close()
local call_ok = false
local ok = core.dynamic_add_media({
filepath = path,
to_player = player:get_player_name(),
}, function(name)
if not call_ok then
return cb("impossible condition")
end
cb()
end)
if not ok then
return cb("dynamic_add_media() returned error")
end
call_ok = true
-- if the callback isn't called this test will just hang :shrug:
end
unittests.register("test_dynamic_media", test_dynamic_media, {async=true, player=true})
local function test_v3f_metatable(player)
assert(vector.check(player:get_pos()))
end
unittests.register("test_v3f_metatable", test_v3f_metatable, {player=true})
local function test_v3s16_metatable(player, pos)
local node = core.get_node(pos)
local found_pos = core.find_node_near(pos, 0, node.name, true)
assert(vector.check(found_pos))
end
unittests.register("test_v3s16_metatable", test_v3s16_metatable, {map=true})
local function test_clear_meta(_, pos)
local ref = core.get_meta(pos)
for way = 1, 3 do
ref:set_string("foo", "bar")
assert(ref:contains("foo"))
if way == 1 then
ref:from_table({})
elseif way == 2 then
ref:from_table(nil)
else
ref:set_string("foo", "")
end
assert(#core.find_nodes_with_meta(pos, pos) == 0, "clearing failed " .. way)
end
end
unittests.register("test_clear_meta", test_clear_meta, {map=true})
local on_punch_called, on_place_called
core.register_on_placenode(function()
on_place_called = true
end)
core.register_on_punchnode(function()
on_punch_called = true
end)
local function test_node_callbacks(_, pos)
on_place_called = false
on_punch_called = false
core.place_node(pos, {name="basenodes:dirt"})
assert(on_place_called, "on_place not called")
core.punch_node(pos)
assert(on_punch_called, "on_punch not called")
core.remove_node(pos)
end
unittests.register("test_node_callbacks", test_node_callbacks, {map=true})
local function test_hashing()
local input = "hello\000world"
assert(core.sha1(input) == "f85b420f1e43ebf88649dfcab302b898d889606c")
assert(core.sha256(input) == "b206899bc103669c8e7b36de29d73f95b46795b508aa87d612b2ce84bfb29df2")
end
unittests.register("test_hashing", test_hashing)
local function test_compress()
-- This text should be compressible, to make sure the results are... normal
local text = "The\000 icey canoe couldn't move very well on the\128 lake. The\000 ice was too stiff and the icey canoe's paddles simply wouldn't punch through."
local methods = {
"deflate",
"zstd",
-- "noodle", -- for warning alarm test
}
local zstd_magic = string.char(0x28, 0xB5, 0x2F, 0xFD)
for _, method in ipairs(methods) do
local compressed = core.compress(text, method)
assert(core.decompress(compressed, method) == text, "input/output mismatch for compression method " .. method)
local has_zstd_magic = compressed:sub(1, 4) == zstd_magic
if method == "zstd" then
assert(has_zstd_magic, "zstd magic number not in zstd method")
else
assert(not has_zstd_magic, "zstd magic number in method " .. method .. " (which is not zstd)")
end
end
end
unittests.register("test_compress", test_compress)
local function test_urlencode()
-- checks that API code handles null bytes
assert(core.urlencode("foo\000bar!") == "foo%00bar%21")
end
unittests.register("test_urlencode", test_urlencode)
local function test_parse_json()
local raw = "{\"how\\u0000weird\":\n\"yes\\u0000really\",\"n\":-1234567891011,\"z\":null}"
do
local data = core.parse_json(raw)
assert(data["how\000weird"] == "yes\000really")
assert(data.n == -1234567891011)
assert(data.z == nil)
end
do
local null = {}
local data = core.parse_json(raw, null)
assert(data.z == null)
end
do
local data, err = core.parse_json('"ceci n\'est pas un json', nil, true)
assert(data == nil)
assert(type(err) == "string")
end
end
unittests.register("test_parse_json", test_parse_json)
local function test_write_json()
-- deeply nested structures should be preserved
local leaf = 42
local data = leaf
for i = 1, 1000 do
data = {data}
end
local roundtripped = core.parse_json(core.write_json(data))
for i = 1, 1000 do
roundtripped = roundtripped[1]
end
assert(roundtripped == 42)
end
unittests.register("test_write_json", test_write_json)
local function test_game_info()
local info = core.get_game_info()
local game_conf = Settings(info.path .. "/game.conf")
assert(info.id == "devtest")
assert(info.title == game_conf:get("title"))
end
unittests.register("test_game_info", test_game_info)
local function test_mapgen_edges(cb)
-- Test that the map can extend to the expected edges and no further.
local min_edge, max_edge = core.get_mapgen_edges()
local min_finished = {}
local max_finished = {}
local function finish()
if #min_finished ~= 1 then
return cb("Expected 1 block to emerge around mapgen minimum edge")
end
if min_finished[1] ~= (min_edge / core.MAP_BLOCKSIZE):floor() then
return cb("Expected block within minimum edge to emerge")
end
if #max_finished ~= 1 then
return cb("Expected 1 block to emerge around mapgen maximum edge")
end
if max_finished[1] ~= (max_edge / core.MAP_BLOCKSIZE):floor() then
return cb("Expected block within maximum edge to emerge")
end
return cb()
end
local emerges_left = 2
local function emerge_block(blockpos, action, blocks_left, finished)
if action ~= core.EMERGE_CANCELLED then
table.insert(finished, blockpos)
end
if blocks_left == 0 then
emerges_left = emerges_left - 1
if emerges_left == 0 then
return finish()
end
end
end
core.emerge_area(min_edge:subtract(1), min_edge, emerge_block, min_finished)
core.emerge_area(max_edge, max_edge:add(1), emerge_block, max_finished)
end
unittests.register("test_mapgen_edges", test_mapgen_edges, {map=true, async=true})
local finish_test_on_mapblocks_changed
core.register_on_mapblocks_changed(function(modified_blocks, modified_block_count)
if finish_test_on_mapblocks_changed then
finish_test_on_mapblocks_changed(modified_blocks, modified_block_count)
finish_test_on_mapblocks_changed = nil
end
end)
local function test_on_mapblocks_changed(cb, player, pos)
local bp1 = (pos / core.MAP_BLOCKSIZE):floor()
local bp2 = bp1:add(1)
for _, bp in ipairs({bp1, bp2}) do
-- Make a modification in the block.
local p = bp * core.MAP_BLOCKSIZE
core.load_area(p)
local meta = core.get_meta(p)
meta:set_int("test_on_mapblocks_changed", meta:get_int("test_on_mapblocks_changed") + 1)
end
finish_test_on_mapblocks_changed = function(modified_blocks, modified_block_count)
if modified_block_count < 2 then
return cb("Expected at least two mapblocks to be recorded as modified")
end
if not modified_blocks[core.hash_node_position(bp1)] or
not modified_blocks[core.hash_node_position(bp2)] then
return cb("The expected mapblocks were not recorded as modified")
end
cb()
end
end
unittests.register("test_on_mapblocks_changed", test_on_mapblocks_changed, {map=true, async=true})
local function test_gennotify_api()
local DECO_ID = 123
local UD_ID = "unittests:dummy"
-- the engine doesn't check if the id is actually valid, maybe it should
core.set_gen_notify({decoration=true}, {DECO_ID})
core.set_gen_notify({custom=true}, nil, {UD_ID})
local flags, deco, custom = core.get_gen_notify()
local function ff(flag)
return (" " .. flags .. " "):match("[ ,]" .. flag .. "[ ,]") ~= nil
end
assert(ff("decoration"), "'decoration' flag missing")
assert(ff("custom"), "'custom' flag missing")
assert(table.indexof(deco, DECO_ID) > 0)
assert(table.indexof(custom, UD_ID) > 0)
core.set_gen_notify({decoration=false, custom=false})
flags, deco, custom = core.get_gen_notify()
assert(not ff("decoration") and not ff("custom"))
assert(#deco == 0, "deco ids not empty")
assert(#custom == 0, "custom ids not empty")
end
unittests.register("test_gennotify_api", test_gennotify_api)
-- <=> inside_mapgen_env.lua
local function test_mapgen_env(cb)
-- emerge threads start delayed so this can take a second
local res = core.ipc_get("unittests:mg")
if res == nil then
return core.after(0, test_mapgen_env, cb)
end
-- handle error status
if res[1] then
cb()
else
cb(res[2])
end
end
unittests.register("test_mapgen_env", test_mapgen_env, {async=true})
local function test_ipc_vector_preserve(cb)
-- the IPC also uses register_portable_metatable
core.ipc_set("unittests:v", vector.new(4, 0, 4))
local v = core.ipc_get("unittests:v")
assert(type(v) == "table")
assert(vector.check(v))
end
unittests.register("test_ipc_vector_preserve", test_ipc_vector_preserve)
local function test_ipc_poll(cb)
core.ipc_set("unittests:flag", nil)
assert(core.ipc_poll("unittests:flag", 1) == false)
-- Note that unlike the async result callback - which has to wait for the
-- next server step - the IPC is instant
local t0 = core.get_us_time()
core.handle_async(function()
core.ipc_set("unittests:flag", true)
end, function() end)
assert(core.ipc_poll("unittests:flag", 1000) == true, "Wait failed (or slow machine?)")
print("delta: " .. (core.get_us_time() - t0) .. "us")
end
unittests.register("test_ipc_poll", test_ipc_poll)