-- lib-sporel.launcher-test — P.3.4
-- 11 assertions: 5 FSM transitions + 1 FSM stability + 5 Engine-Surface existence.
-- (measure_text runtime-behavior check dropped — needs Raylib font, not loaded in headless test-mode.)
-- Pattern follows P.3.1 Test-Module-Pattern; TAP output via engine.test.*

-- FSM-Source: byte-identical Kopie aus modules/lib-sporel.launcher/fsm.lua.
-- Sporel-Resolver lehnt module-als-dep ab (nur lib-deps werden resolved),
-- daher hat dieses Test-Modul seine eigene fsm.lua. Drift wird via Smoke-
-- diff-check verhindert (siehe smoke.sh P0-S15-pre).
local M = {}

local fsm = dofile(engine.module.dir_of("lib-sporel.launcher-test") .. "/fsm.lua")

function M.run_tests(ctx)
    -- FSM transitions (5)
    engine.test.equals(fsm.next(fsm.STATE_LIST,         "esc"),         fsm.STATE_QUIT_CONFIRM, "list+esc -> quit_confirm")
    engine.test.equals(fsm.next(fsm.STATE_QUIT_CONFIRM, "esc"),         fsm.STATE_LIST,         "quit_confirm+esc -> list")
    engine.test.equals(fsm.next(fsm.STATE_QUIT_CONFIRM, "enter"),       fsm.EXIT,               "quit_confirm+enter -> exit")
    engine.test.equals(fsm.next(fsm.STATE_QUIT_CONFIRM, "click_yes"),   fsm.EXIT,               "quit_confirm+click_yes -> exit")
    engine.test.equals(fsm.next(fsm.STATE_QUIT_CONFIRM, "click_no"),    fsm.STATE_LIST,         "quit_confirm+click_no -> list")

    -- FSM stability (1)
    engine.test.equals(fsm.next(fsm.STATE_LIST, "click_module"), fsm.STATE_LIST, "list+click_module -> list (switch is side-effect)")

    -- Engine-surface existence (6)
    engine.test.assert(type(engine.module.list)         == "function", "engine.module.list is function")
    engine.test.assert(type(engine.module.dir_of)       == "function", "engine.module.dir_of is function")
    engine.test.assert(type(engine.render.draw_text)    == "function", "engine.render.draw_text is function")
    engine.test.assert(type(engine.render.measure_text) == "function", "engine.render.measure_text is function")
    engine.test.assert(type(engine.module.list())       == "table",    "engine.module.list() returns table")
end

return M