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| import { FileRef, nextTestSetup } from 'e2e-utils' | |
| import { retry, waitFor } from 'next-test-utils' | |
| import path from 'path' | |
| const envFile = '.env.development.local' | |
| describe(`app-dir-hmr`, () => { | |
| const { next } = nextTestSetup({ | |
| files: new FileRef(path.join(__dirname, 'fixtures', 'default-template')), | |
| patchFileDelay: 1000, | |
| }) | |
| describe('filesystem changes', () => { | |
| it('should not continously poll when hitting a not found page', async () => { | |
| let requestCount = 0 | |
| const browser = await next.browser('/does-not-exist', { | |
| beforePageLoad(page) { | |
| page.on('request', (request) => { | |
| const url = new URL(request.url()) | |
| if (url.pathname === '/does-not-exist') { | |
| requestCount++ | |
| } | |
| }) | |
| }, | |
| }) | |
| const body = await browser.elementByCss('body').text() | |
| expect(body).toContain('404') | |
| await waitFor(3000) | |
| expect(requestCount).toBe(1) | |
| }) | |
| it('should not break when renaming a folder', async () => { | |
| const browser = await next.browser('/folder') | |
| const text = await browser.elementByCss('h1').text() | |
| expect(text).toBe('Hello') | |
| // Rename folder | |
| await next.renameFolder('app/folder', 'app/folder-renamed') | |
| try { | |
| // Should be 404 in a few seconds | |
| await retry(async () => { | |
| const body = await browser.elementByCss('body').text() | |
| expect(body).toContain('404') | |
| }) | |
| // The new page should be rendered | |
| const newHTML = await next.render('/folder-renamed') | |
| expect(newHTML).toContain('Hello') | |
| expect(next.cliOutput).not.toContain('FATAL') | |
| } finally { | |
| // Rename it back | |
| await next.renameFolder('app/folder-renamed', 'app/folder') | |
| } | |
| }) | |
| it('should update server components after navigating to a page with a different runtime', async () => { | |
| const browser = await next.browser('/env/node') | |
| expect(await browser.elementByCss('p').text()).toBe('mac') | |
| await browser.loadPage(`${next.url}/env/edge`) | |
| await browser.eval('window.__TEST_NO_RELOAD = true') | |
| expect(await browser.elementByCss('p').text()).toBe('mac') | |
| const getCliOutput = next.getCliOutputFromHere() | |
| await next.patchFile(envFile, 'MY_DEVICE="ipad"', async () => { | |
| await waitFor(() => getCliOutput().includes('Reload env')) | |
| // use an extra-long timeout since the environment reload can be a | |
| // little slow (especially on overloaded CI servers) | |
| await retry(async () => { | |
| expect(await browser.elementByCss('p').text()).toBe('ipad') | |
| }, 5000 /* ms */) | |
| expect( | |
| await browser.eval('window.__TEST_NO_RELOAD === undefined') | |
| ).toBe(false) | |
| const logs = await browser.log() | |
| const fastRefreshLogs = logs.filter((log) => { | |
| return log.message.startsWith('[Fast Refresh]') | |
| }) | |
| // The exact ordering and number of these messages is implementation | |
| // dependent and subject to race conditions, just check that we have at | |
| // least one "rebuilding" and "done in" message in the logs, the exact | |
| // details are unimportant. | |
| expect(fastRefreshLogs).toEqual( | |
| expect.arrayContaining([ | |
| { | |
| source: 'log', | |
| message: expect.stringContaining('[Fast Refresh] done in '), | |
| }, | |
| ]) | |
| ) | |
| }) | |
| // ensure it's restored back to "mac" before the next test | |
| await retry(async () => { | |
| expect(await browser.elementByCss('p').text()).toBe('mac') | |
| }) | |
| expect(next.cliOutput).not.toContain('FATAL') | |
| }) | |
| it('should have no unexpected action error for hmr', async () => { | |
| expect(next.cliOutput).not.toContain('Unexpected action') | |
| }) | |
| it('can navigate cleanly to a page that requires a change in the Webpack runtime', async () => { | |
| // This isn't a very accurate test since the Webpack runtime is somewhat an implementation detail. | |
| // To ensure this is still valid, check the `*/webpack.*.hot-update.js` network response content when the navigation is triggered. | |
| // If there is new functionality added, the test is still valid. | |
| // If not, the test doesn't cover anything new. | |
| // TODO: Enforce console.error assertions or MPA navigation assertions in all tests instead. | |
| const browser = await next.browser('/bundler-runtime-changes') | |
| await browser.eval('window.__TEST_NO_RELOAD = true') | |
| await browser | |
| .elementByCss('a') | |
| .click() | |
| .waitForElementByCss('[data-testid="new-runtime-functionality-page"]') | |
| const logs = await browser.log() | |
| // TODO: Should assert on all logs but these are cluttered with logs from our test utils (e.g. playwright tracing or webdriver) | |
| expect(logs).toEqual( | |
| expect.arrayContaining([ | |
| { | |
| message: expect.stringContaining('[Fast Refresh] done in'), | |
| source: 'log', | |
| }, | |
| ]) | |
| ) | |
| expect(logs).not.toEqual( | |
| expect.arrayContaining([ | |
| expect.objectContaining({ | |
| source: 'error', | |
| }), | |
| ]) | |
| ) | |
| // No MPA navigation triggered | |
| expect(await browser.eval('window.__TEST_NO_RELOAD')).toEqual(true) | |
| expect(next.cliOutput).not.toContain('FATAL') | |
| }) | |
| }) | |
| }) | |