refactor: remove unnecessary features, update docs

packages/vide-charm/src/__tests__/useAtom.spec.luau

@@ -1,61 +0,0 @@
-local Charm = require("../../Charm")
-local Vide = require("../../Vide")
-local VideCharm = require("../")
-local suite = require("../../../../test/suite")
-
-local test = suite.test
-
-test("tracks atom state", function()
-	local state = Charm.atom(0)
-	local source
-	local cleanup = Vide.root(function()
-		source = VideCharm.useAtom(state)
-	end)
-	assert(source() == 0, "should return 0")
-	state(1)
-	assert(source() == 1, "should return 1")
-	cleanup()
-end)
-
-test("accepts a selector", function()
-	local state = Charm.atom(0)
-	local source
-	local cleanup = Vide.root(function()
-		source = VideCharm.useAtom(function()
-			return 2 * state()
-		end)
-	end)
-	assert(source() == 0, "should return 0")
-	state(1)
-	assert(source() == 2, "should return 2")
-	cleanup()
-end)
-
-test("updates source in untracked", function()
-	local outerAtom = Charm.atom(nil :: any)
-	local innerAtom = Charm.atom(0)
-	local spyCalls = 0
-	local cleanup = Vide.root(function()
-		return Vide.show(VideCharm.useAtom(outerAtom), function()
-			-- Charm effects created in Vide scopes triggered by useAtom might
-			-- incorrectly get treated as an inner effect in useAtom. This test
-			-- ensures that doesn't happen.
-			Vide.cleanup(Charm.effect(function()
-				innerAtom()
-				spyCalls += 1
-			end))
-			return nil
-		end)
-	end)
-	assert(spyCalls == 0, "should not call spy initially")
-	outerAtom(true)
-	assert(spyCalls == 1, "should call spy when visible")
-	innerAtom(1)
-	assert(spyCalls == 2, "spy should run when counter updates")
-	outerAtom({}) -- set to a truthy value to trigger an outer effect re-run
-	innerAtom(2)
-	assert(spyCalls == 3, "spy should still run when counter updates")
-	cleanup()
-end)
-
-return {}