return function()
	local Roact = require(game:GetService("CorePackages").Roact)
	local createFitToContent = require(script.Parent.Parent.Components.createFitToContent)

	it("should create and destroy without errors", function()
		local fitToContent = createFitToContent("Frame", "UIListLayout", {})
		local component = Roact.createElement(fitToContent, {}, {})
		local instance = Roact.mount(component)

		Roact.unmount(instance)
	end)

	it("should throw an error if size is specified", function()
		local fitToContent = createFitToContent("Frame", "UIListLayout", {})
		local component = Roact.createElement(fitToContent, {
			Size = UDim2.new()
		}, {})

		expect(function()
			Roact.mount(component)
		end).to.throw()
	end)

	it("should add a Layout to its children", function()
		local container = Instance.new("Folder")

		local fitToContent = createFitToContent("Frame", "UIListLayout", {})
		local component = Roact.createElement(fitToContent, {}, {
			Frame1 = Roact.createElement("Frame"),
			Frame2 = Roact.createElement("Frame"),
		})

		local instance = Roact.mount(component, container)
		local frame = container:FindFirstChildOfClass("Frame")

		expect(frame.Frame1).to.be.ok()
		expect(frame.Frame2).to.be.ok()
		expect(frame.Layout).to.be.ok()

		Roact.unmount(instance)
	end)
end