Comments (6)
Hi @davidgtu,
You cannot destructure the values as it locks in their current value. It's like having
const result = { current: "example" }
const example = result.current
result.current = "something else"
expect(example).toBe(result.current)
and expecting the values to still be the same.
Try making your test:
describe('useOpenClose', () => {
const { result } = renderHook(() => useOpenClose());
test('Should have initial value of false', () => {
console.log(result.current[0])
});
test('Should update value to true', () => {
act(() => result.current[1].open())
console.log(result.current[0])
})
});
It looks a little but nasty when you have an array as the result of your custom hook, but unfortunately it's a symptom of your hook design (which I'm not saying is bad). You could make it a bit more readible by adjusting the hook callback slightly:
describe('useOpenClose', () => {
const { result } = renderHook(() => {
const [isOpen, actions] = useOpenClose();
return { isOpen, ...actions };
});
test('Should have initial value of false', () => {
console.log(result.current.isOpen)
});
test('Should update value to true', () => {
act(() => result.current.open())
console.log(result.current.isOpen)
})
});
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@mpeyper That was incredibly helpful. Thank you so much.
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Great idea @gillchristian. PRs always welcome ;)
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This can be closed now 😏
from react-hooks-testing-library.
Maybe this is worth to record in the docs as might happen to others (like me just now 😅)
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✔️ 🎉
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