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import { nextTestSetup } from 'e2e-utils'
import { assertNoRedbox } from '../../../lib/next-test-utils'
describe('use-cache-errors', () => {
const { next } = nextTestSetup({
files: __dirname,
})
const isRspack = Boolean(process.env.NEXT_RSPACK)
it('should not show a false-positive compiler error about a misplaced "use cache" directive', async () => {
// This is a regression test to ensure that an injected React Refresh
// statement (`var _s = __turbopack_context__.k.signature`) does not
// interfere with our "use cache" directive misplacement detection.
const browser = await next.browser('/')
await assertNoRedbox(browser)
})
it('should show a runtime error when calling the incorrectly used cache function', async () => {
const browser = await next.browser('/')
await browser.elementById('action-button').click()
if (isRspack) {
// TODO: the source is missing and the stack leaks rspack internals
await expect(browser).toDisplayRedbox(`
{
"description": "Attempted to call useStuff() from the server but useStuff is on the client. It's not possible to invoke a client function from the server, it can only be rendered as a Component or passed to props of a Client Component.",
"environmentLabel": "Cache",
"label": "Runtime Error",
"source": null,
"stack": [
"<FIXME-file-protocol>",
"useCachedStuff about:/Cache/webpack-internal:///(action-browser)/app/module-with-use-cache.ts (25:68)",
"Page ./app/page.tsx",
],
}
`)
} else {
await expect(browser).toDisplayRedbox(`
{
"description": "Attempted to call useStuff() from the server but useStuff is on the client. It's not possible to invoke a client function from the server, it can only be rendered as a Component or passed to props of a Client Component.",
"environmentLabel": "Cache",
"label": "Runtime Error",
"source": "app/module-with-use-cache.ts (16:18) @ useCachedStuff
> 16 | return useStuff()
| ^",
"stack": [
"useCachedStuff app/module-with-use-cache.ts (16:18)",
"Page app/page.tsx (22:10)",
],
}
`)
}
})
})
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