Untested POC

run_tests.lua

@@ -0,0 +1,81 @@
+-- Set up Lua path
+package.path = "./lua/?.lua;./lua/?/init.lua;" .. package.path
+
+-- Extend existing vim global
+if not _G.vim then _G.vim = {} end
+
+local vim = _G.vim
+
+-- Mock missing vim functions if they don't exist
+vim.fn = vim.fn or {}
+vim.fn.stdpath = vim.fn.stdpath or function(type)
+  return "/tmp/notex_test"
+end
+vim.fn.getpid = vim.fn.getpid or function()
+  return 12345
+end
+
+vim.loop = vim.loop or {}
+vim.loop.fs_stat = vim.loop.fs_stat or function(path)
+  return {type = "file", size = 100}
+end
+vim.loop.timer_start = vim.loop.timer_start or function(delay, callback)
+  return 1
+end
+vim.loop.timer_stop = vim.loop.timer_stop or function(timer_id)
+  -- Mock timer stop
+end
+
+vim.uv = vim.uv or {}
+vim.uv.new_timer = vim.uv.new_timer or function()
+  return {
+    start = function() end,
+    stop = function() end,
+    close = function() end
+  }
+end
+vim.uv.hrtime = vim.uv.hrtime or function()
+  return os.clock() * 1e9
+end
+
+vim.trim = vim.trim or function(str)
+  return str:match("^%s*(.-)%s*$")
+end
+
+vim.split = vim.split or function(str, sep)
+  local fields = {}
+  local pattern = string.format("([^%s]+)", sep)
+  str:gsub(pattern, function(c) fields[#fields + 1] = c end)
+  return fields
+end
+
+vim.tbl_contains = vim.tbl_contains or function(t, val)
+  for _, v in ipairs(t) do
+    if v == val then return true end
+  end
+  return false
+end
+
+-- Add missing API functions
+vim.api = vim.api or {}
+vim.api.nvim_buf_get_lines = vim.api.nvim_buf_get_lines or function() return {} end
+vim.api.nvim_buf_set_lines = vim.api.nvim_buf_set_lines or function() end
+vim.api.nvim_create_buf = vim.api.nvim_create_buf or function() return 1 end
+
+vim.g = vim.g or {}
+vim.b = vim.b or {}
+vim.o = vim.o or {}
+vim.bo = vim.bo or {}
+vim.wo = vim.wo or {}
+
+-- Mock scheduler
+vim.schedule = vim.schedule or function(fn) fn() end
+vim.defer_fn = vim.defer_fn or function(fn, delay) fn() end
+
+-- Run busted with command line args
+local busted = require('busted')
+local args = arg or {}
+if #args == 0 then
+  args = {'tests/', '--verbose'}
+end
+busted.run(args)