mirror of https://github.com/tidwall/tile38.git
87 lines
2.1 KiB
Lua
87 lines
2.1 KiB
Lua
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-- debug lib tests
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-- debug stuff are partially implemented; hooks are not supported.
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local function f1()
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end
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local env = {}
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local mt = {}
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debug.setfenv(f1, env)
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assert(debug.getfenv(f1) == env)
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debug.setmetatable(f1, mt)
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assert(debug.getmetatable(f1) == mt)
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local function f2()
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local info = debug.getinfo(1, "Slunf")
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assert(info.currentline == 14)
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assert(info.linedefined == 13)
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assert(info.func == f2)
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assert(info.lastlinedefined == 25)
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assert(info.nups == 1)
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assert(info.name == "f2")
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assert(info.what == "Lua")
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if string.find(_VERSION, "GopherLua") then
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assert(info.source == "db.lua")
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end
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end
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f2()
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local function f3()
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end
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local info = debug.getinfo(f3)
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assert(info.currentline == -1)
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assert(info.linedefined == 28)
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assert(info.func == f3)
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assert(info.lastlinedefined == 29)
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assert(info.nups == 0)
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assert(info.name == nil)
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assert(info.what == "Lua")
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if string.find(_VERSION, "GopherLua") then
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assert(info.source == "db.lua")
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end
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local function f4()
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local a,b,c = 1,2,3
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local function f5()
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local name, value = debug.getlocal(2, 2)
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assert(debug.getlocal(2, 10) == nil)
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assert(name == "b")
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assert(value == 2)
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name = debug.setlocal(2, 2, 10)
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assert(debug.setlocal(2, 10, 10) == nil)
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assert(name == "b")
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local d = a
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local e = c
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local tb = debug.traceback("--msg--")
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assert(string.find(tb, "\\-\\-msg\\-\\-"))
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assert(string.find(tb, "in.*f5"))
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assert(string.find(tb, "in.*f4"))
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end
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f5()
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local name, value = debug.getupvalue(f5, 1)
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assert(debug.getupvalue(f5, 10) == nil)
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assert(name == "a")
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assert(value == 1)
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name = debug.setupvalue(f5, 1, 11)
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assert(debug.setupvalue(f5, 10, 11) == nil)
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assert(name == "a")
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assert(a == 11)
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assert(b == 10) -- changed by debug.setlocal in f4
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end
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f4()
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local ok, msg = pcall(function()
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debug.getlocal(10, 1)
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end)
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assert(not ok and string.find(msg, "level out of range"))
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local ok, msg = pcall(function()
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debug.setlocal(10, 1, 1)
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end)
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assert(not ok and string.find(msg, "level out of range"))
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assert(debug.getinfo(100) == nil)
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assert(debug.getinfo(1, "a") == nil)
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