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import { renderHook } from '@testing-library/react'
import { useSpringValue } from './useSpringValue'
describe('useSpringValue', () => {
it('should return a SpringValue with the initial value set & be animatable', async () => {
const { result } = renderHook(() => useSpringValue(0))
expect(result.current.get()).toBe(0)
result.current.start(1)
await global.advanceUntilIdle()
const frames = global.getFrames(result.current)
expect(frames).toMatchInlineSnapshot(`
[
0.022634843307857987,
0.07615528894993949,
0.14727295456877587,
0.226793329378144,
0.30850531916036833,
0.3883524421610094,
0.4638171205392546,
0.5334657448036914,
0.5966146523130327,
0.653086718031782,
0.7030355736424124,
0.7468200657416287,
0.7849158337229618,
0.8178541406742544,
0.84618056340198,
0.8704280232770599,
0.8911000586164687,
0.908661309883985,
0.9235329941206051,
0.9360917483504706,
0.9466706719880811,
0.9555617327559859,
0.9630189477450245,
0.9692619326731112,
0.974479544590839,
0.9788334387327177,
0.9824614283710769,
0.9854805845242963,
0.9879900455631954,
0.9900735291663613,
0.9918015536949567,
0.9932333851170554,
0.9944187307560263,
0.9953992035746594,
0.9962095813165257,
0.9968788842438258,
0.9974312938902624,
0.997886933507673,
0.9982625289470638,
0.9985719667273453,
0.9988267641056736,
1,
]
`)
})
it('should pass the props to the SpringValue', async () => {
const onChange = jest.fn()
const { result: spring1Result } = renderHook(() =>
useSpringValue(0, {
onChange,
config: {
tension: 250,
},
})
)
spring1Result.current.start(1)
await global.advanceUntilIdle()
const spring1Frames = global.getFrames(spring1Result.current)
expect(onChange).toHaveBeenCalledTimes(spring1Frames.length)
expect(spring1Frames).toMatchInlineSnapshot(`
[
0.03322035282414196,
0.11115235982150365,
0.2130842922652568,
0.32437365472020624,
0.4351150247228329,
0.5390109579648729,
0.6324388770927332,
0.7136979238346725,
0.7824149821427263,
0.8390872502255999,
0.8847388969420807,
0.9206707563299439,
0.948284154761085,
0.9689624419925535,
0.983996343637665,
0.9945416938864688,
1.0016003383581966,
1.006016962813285,
1.008486284526941,
1.009566443632207,
1.0096955708194038,
1.0092094129953517,
1.0083586011904877,
1.00732467705411,
1.0062343860893856,
1.0051720249961695,
1.0041898213810294,
1.0033164473489222,
1.0025638412971623,
1.0019325485312394,
1.001415802163774,
1.0010025596964731,
1,
]
`)
const { result: spring2Result } = renderHook(() => useSpringValue(0))
spring2Result.current.start(1)
await global.advanceUntilIdle()
const spring2Frames = global.getFrames(spring2Result.current)
expect(spring2Frames).not.toEqual(spring1Frames)
})
it('should not update the initial value on rerender', () => {
const { result, rerender } = renderHook(props => useSpringValue(props), {
initialProps: 0,
})
expect(result.current.get()).toBe(0)
rerender(1)
expect(result.current.get()).toBe(0)
})
it('should stop the animation when the hook is unmounted', async () => {
const { result, unmount } = renderHook(() => useSpringValue(0))
const promise = result.current.start(1)
await global.advanceUntilValue(result.current, 0.5)
unmount()
await global.advanceUntilIdle()
expect((await promise).value).toMatchInlineSnapshot(`0.5334657448036914`)
})
})
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