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50 lines
1.4 KiB
Text
50 lines
1.4 KiB
Text
local ReplicatedStorage = game:GetService("ReplicatedStorage")
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local ServerScriptService = game:GetService("ServerScriptService")
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local Charm = require(ReplicatedStorage.Packages.Charm)
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local ReactCharm = require(ReplicatedStorage.Packages.ReactCharm)
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local renderHook = require(script.Parent.helpers.renderHook)
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local suite = require(ServerScriptService.Tests.suite)
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local atom = Charm.atom
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local useAtomBinding = ReactCharm.useAtomBinding
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local test = suite.test
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test("tracks atom state", function()
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local state = atom(0)
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local hook = renderHook(function()
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return useAtomBinding(state)
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end)
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assert(hook.result:getValue() == 0, "should return 0")
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state(1)
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assert(hook.result:getValue() == 1, "should return 1")
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end)
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test("accepts a selector", function()
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local state = atom(0)
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local hook = renderHook(function()
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return useAtomBinding(function()
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return 2 * state()
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end)
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end)
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assert(hook.result:getValue() == 0, "should return 0")
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state(1)
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assert(hook.result:getValue() == 2, "should return 2")
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end)
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test("tracks dependencies", function()
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local state = atom(0)
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local hook = renderHook(function()
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return useAtomBinding(state, { state })
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end)
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assert(hook.result:getValue() == 0, "should return 0")
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state(1)
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assert(hook.result:getValue() == 1, "should return 1")
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state = atom(0)
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hook.rerender()
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assert(hook.result:getValue() == 0, "should return 0")
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state(1)
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assert(hook.result:getValue() == 1, "should return 1")
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end)
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return {}
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