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react-module-federation.test.ts
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react-module-federation.test.ts
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import { stripIndents } from '@nx/devkit';
import {
checkFilesExist,
cleanupProject,
newProject,
readProjectConfig,
runCLI,
runCLIAsync,
uniq,
updateFile,
} from '@nx/e2e/utils';
describe('React Module Federation', () => {
let proj: string;
beforeAll(() => (proj = newProject()));
afterAll(() => cleanupProject());
it('should generate host and remote apps', async () => {
const shell = uniq('shell');
const remote1 = uniq('remote1');
const remote2 = uniq('remote2');
const remote3 = uniq('remote3');
runCLI(`generate @nx/react:host ${shell} --style=css --no-interactive`);
runCLI(
`generate @nx/react:remote ${remote1} --style=css --host=${shell} --no-interactive`
);
runCLI(
`generate @nx/react:remote ${remote2} --style=css --host=${shell} --no-interactive`
);
runCLI(
`generate @nx/react:remote ${remote3} --style=css --host=${shell} --no-interactive`
);
checkFilesExist(`apps/${shell}/module-federation.config.js`);
checkFilesExist(`apps/${remote1}/module-federation.config.js`);
checkFilesExist(`apps/${remote2}/module-federation.config.js`);
checkFilesExist(`apps/${remote3}/module-federation.config.js`);
await expect(runCLIAsync(`test ${shell}`)).resolves.toMatchObject({
combinedOutput: expect.stringContaining('Test Suites: 1 passed, 1 total'),
});
expect(readPort(shell)).toEqual(4200);
expect(readPort(remote1)).toEqual(4201);
expect(readPort(remote2)).toEqual(4202);
expect(readPort(remote3)).toEqual(4203);
updateFile(
`apps/${shell}/webpack.config.js`,
stripIndents`
import { ModuleFederationConfig } from '@nx/devkit';
import { composePlugins, withNx } from '@nx/webpack';
import { withReact } from '@nx/react';
import { withModuleFederation } from '@nx/react/module-federation');
const baseConfig = require('./module-federation.config');
const config: ModuleFederationConfig = {
...baseConfig,
remotes: [
'${remote1}',
['${remote2}', 'http://localhost:${readPort(
remote2
)}/remoteEntry.js'],
['${remote3}', 'http://localhost:${readPort(remote3)}'],
],
};
// Nx plugins for webpack to build config object from Nx options and context.
module.exports = composePlugins(withNx(), withReact(), withModuleFederation(config));
`
);
updateFile(
`apps/${shell}-e2e/src/integration/app.spec.ts`,
stripIndents`
import { getGreeting } from '../support/app.po';
describe('shell app', () => {
it('should display welcome message', () => {
cy.visit('/')
getGreeting().contains('Welcome ${shell}');
});
it('should load remote 1', () => {
cy.visit('/${remote1}')
getGreeting().contains('Welcome ${remote1}');
});
it('should load remote 2', () => {
cy.visit('/${remote2}')
getGreeting().contains('Welcome ${remote2}');
});
it('should load remote 3', () => {
cy.visit('/${remote3}')
getGreeting().contains('Welcome ${remote3}');
});
});
`
);
// TODO(caleb): cypress isn't able to find the element and then throws error with an address already in use error.
// https://staging.nx.app/runs/ASAokpXhnE/task/e2e-react:e2e
// if (runCypressTests()) {
// const e2eResults = runCLI(`e2e ${shell}-e2e --no-watch --verbose`);
// expect(e2eResults).toContain('All specs passed!');
// expect(
// await killPorts([
// readPort(shell),
// readPort(remote1),
// readPort(remote2),
// readPort(remote3),
// ])
// ).toBeTruthy();
// }
}, 500_000);
it('should should support generating host and remote apps with the new name and root format', async () => {
const shell = uniq('shell');
const remote = uniq('remote');
runCLI(
`generate @nx/react:host ${shell} --project-name-and-root-format=as-provided --no-interactive`
);
runCLI(
`generate @nx/react:remote ${remote} --host=${shell} --project-name-and-root-format=as-provided --no-interactive`
);
// check files are generated without the layout directory ("apps/") and
// using the project name as the directory when no directory is provided
checkFilesExist(`${shell}/module-federation.config.js`);
checkFilesExist(`${remote}/module-federation.config.js`);
// check default generated host is built successfully
const buildOutput = runCLI(`run ${shell}:build:development`);
expect(buildOutput).toContain('Successfully ran target build');
}, 500_000);
async function readPort(appName: string): Promise<number> {
const config = await readProjectConfig(appName);
return config.targets.serve.options.port;
}
});