lune/tests/roblox/instance/methods/IsAncestorOf.luau

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local roblox = require("@lune/roblox")
local Instance = roblox.Instance
local root = Instance.new("Folder")
local child = Instance.new("Model")
local descendant = Instance.new("Part")
child.Parent = root
descendant.Parent = child
assert(not root:IsAncestorOf(root))
assert(not child:IsAncestorOf(root))
assert(not descendant:IsAncestorOf(root))
assert(root:IsAncestorOf(child))
assert(not child:IsAncestorOf(child))
assert(not descendant:IsAncestorOf(child))
assert(root:IsAncestorOf(descendant))
assert(child:IsAncestorOf(descendant))
assert(not descendant:IsAncestorOf(descendant))