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https://github.com/hanzoai/next.js.git
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Niklas MischkulnigandGitHub
e309a6ef70
Just adding some test coverage - Turbopack: module are only evaluated when the given module is actually rendered - Webpack: all client component modules are evaluated when at least one client reference renders
54 lines
1.7 KiB
TypeScript
54 lines
1.7 KiB
TypeScript
import { nextTestSetup } from 'e2e-utils'
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describe('client-reference-side-effects', () => {
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const { next, isTurbopack } = nextTestSetup({
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files: __dirname,
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skipDeployment: true,
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})
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it('side effect behavior when only importing', async () => {
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const browser = await next.browser('/imported')
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expect(await browser.elementByCss('body').text()).toContain('Server')
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let client = await browser.eval('window.client')
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let client_sideeffect_reexport = await browser.eval(
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'window.client_sideeffect_reexport'
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)
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let client_sideeffect_only = await browser.eval(
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'window.client_sideeffect_only'
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)
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// No client references are rendered, so nothing is executed.
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expect(client).toBeUndefined()
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expect(client_sideeffect_reexport).toBeUndefined()
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expect(client_sideeffect_only).toBeUndefined()
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})
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it('side effect behavior when rendering', async () => {
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const browser = await next.browser('/rendered')
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const body = await browser.elementByCss('body').text()
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expect(body).toContain('Server')
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expect(body).toContain('client component')
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let client = await browser.eval('window.client')
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let client_sideeffect_reexport = await browser.eval(
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'window.client_sideeffect_reexport'
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)
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let client_sideeffect_only = await browser.eval(
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'window.client_sideeffect_only'
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)
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expect(client).toBeTrue()
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expect(client_sideeffect_reexport).toBeTrue()
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if (isTurbopack) {
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expect(client_sideeffect_only).toBeUndefined()
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} else {
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// Webpack eagerly initializes all client reference modules once at least one of them is
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// rendered.
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expect(client_sideeffect_only).toBeTrue()
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}
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})
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})
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