[LCFHeLL]

--[[
  Sample debugging code.
--]]

local addon = CreateFrame"Frame" 

print("debugger")

addon:SetScript("OnEvent", function(self, event, time, subevent)
  if(subevent=="SPELL_AURA_APPLIED") then
    print("event detected")
  end
end)

addon:RegisterEvent"COMBAT_LOG_EVENT_UNFILTERED"

something like this