✅ [RUM-14696] Improve microfrontend e2e test - plugin + module federatoin

[amortemousque]

Motivation

Improve the microfrontend end-to-end test to rely on a real test app configured with Module Federation and the built plugin.

Changes

• Create a test app with:
  • Module Federation 2.0, including one shell and two remotes
  • The built @datadog/webpack-plugin configured with source code context

• Add tests that verify every RUM event type includes the service and version set by the build plugin

Test instructions

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.
• Updated documentation and/or relevant AGENTS.md file

[datadog-datadog-prod-us1-2]

⚠️ Tests

✨ Fix all issues with BitsAI or with Cursor

⚠️ Warnings

🧪 3 Tests failed

microfrontend › RUM › with source code bundler plugin › LOAf should have service and version from source code context from microfrontend.scenario.ts (Datadog) (Fix with Cursor)

createTest.ts:244:3 LOAf should have service and version from source code context

[Webkit] › ../lib/framework/createTest.ts:244:3 › microfrontend › RUM › with source code bundler plugin › LOAf should have service and version from source code context 

    Error: expect(received).toMatchObject(expected)

    - Expected  - 10
    + Received  +  1

    - Array [
...

microfrontend › RUM › with source code bundler plugin › LOAf should have service and version from source code context from microfrontend.scenario.ts (Datadog) (Fix with Cursor)

createTest.ts:244:3 LOAf should have service and version from source code context

[Edge] › ../lib/framework/createTest.ts:244:3 › microfrontend › RUM › with source code bundler plugin › LOAf should have service and version from source code context 

    Error: expect(received).toMatchObject(expected)

    - Expected  - 10
    + Received  +  1

    - Array [
...

microfrontend › RUM › with source code bundler plugin › LOAf should have service and version from source code context from microfrontend.scenario.ts (Datadog) (Fix with Cursor)

createTest.ts:244:3 LOAf should have service and version from source code context

[Firefox] › ../lib/framework/createTest.ts:244:3 › microfrontend › RUM › with source code bundler plugin › LOAf should have service and version from source code context 

    Error: expect(received).toMatchObject(expected)

    - Expected  - 10
    + Received  +  1

    - Array [
...

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 663b282 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Skip LOAF assertion outside Chromium

This test now runs the long-task assertion on every Playwright project, but the suite still executes Firefox/WebKit projects and those browsers do not emit the long-task entries this assertion depends on (the repo already guards similar checks with test.skip(browserName !== 'chromium', ...) in other scenarios). As written, rumLongTaskEvents can be empty off Chromium, so the strict toMatchObject([...]) expectation makes this scenario fail in multi-browser runs.

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