Julien Valverdé
64 lines
2.3 KiB
TypeScript
64 lines
2.3 KiB
TypeScript
import { act, fireEvent, render, screen } from "@testing-library/react"
|
|
import { Effect, Layer } from "effect"
|
|
import * as React from "react"
|
|
import { describe, expect, it, vi } from "vitest"
|
|
import * as Async from "./Async.js"
|
|
import * as Component from "./Component.js"
|
|
import * as Memoized from "./Memoized.js"
|
|
import * as ReactRuntime from "./ReactRuntime.js"
|
|
|
|
describe("Async", () => {
|
|
it("does not rerun for an unrelated parent state update", async () => {
|
|
const load = vi.fn((_id: number) => Effect.never)
|
|
const renderPost = vi.fn()
|
|
const runtime = ReactRuntime.make(Layer.empty)
|
|
const context = await runtime.runtime.context()
|
|
|
|
const Post = Component.make("Post")(function*(props: { readonly id: number }) {
|
|
renderPost()
|
|
const value = yield* Component.useOnChange(() => load(props.id), [props.id])
|
|
return <div>{value}</div>
|
|
}).pipe(
|
|
Async.async,
|
|
Memoized.memoized,
|
|
)
|
|
|
|
const Parent = Component.make("Parent")(function*() {
|
|
const [text, setText] = React.useState("")
|
|
const AsyncPost = yield* Post.use
|
|
|
|
return <>
|
|
<input
|
|
aria-label="text"
|
|
value={text}
|
|
onChange={event => setText(event.currentTarget.value)}
|
|
/>
|
|
<AsyncPost id={1} fallback={<div>loading</div>} />
|
|
</>
|
|
}).pipe(Component.withContext(runtime.context))
|
|
|
|
let view!: ReturnType<typeof render>
|
|
await act(async () => {
|
|
view = render(
|
|
<runtime.context.Provider value={context}>
|
|
<Parent />
|
|
</runtime.context.Provider>,
|
|
)
|
|
})
|
|
|
|
expect(screen.getByText("loading")).toBeTruthy()
|
|
expect(load).toHaveBeenCalledTimes(2)
|
|
const callsAfterLoad = load.mock.calls.length
|
|
const rendersAfterLoad = renderPost.mock.calls.length
|
|
|
|
await act(async () => {
|
|
fireEvent.change(screen.getByLabelText("text"), { target: { value: "a" } })
|
|
})
|
|
expect(load).toHaveBeenCalledTimes(callsAfterLoad)
|
|
expect(renderPost).toHaveBeenCalledTimes(rendersAfterLoad)
|
|
|
|
view.unmount()
|
|
await runtime.runtime.dispose()
|
|
})
|
|
})
|