chore: convert v8-snapshot-require tests to vitest

[AtofStryker]

• Closes

Additional details

converts @packages/v8-snapshot-require tests from mocha to vitest. Conversion is 1:1

Steps to test

How has the user experience changed?

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?

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Note

Migrates @packages/v8-snapshot-require tests to Vitest, updates configs/deps and assertions, adjusts CI expected test results, and marks guide status complete.

• Binary Packages:
  • @packages/v8-snapshot-require:
    • Replace Mocha/Chai with Vitest: update test assertions and imports in test/*.spec.ts.
    • Add vitest.config.ts; remove test/.mocharc.js.
    • Update package.json scripts (test-unit -> vitest run, add test-debug) and devDeps (remove mocha, add vitest).
• CI:
  • .circleci/src/pipeline/@pipeline.yml: lower sanitize-verify-and-store-mocha-results.expectedResultCount in unit-tests from 10 to 9.
• Docs:
  • guides/esm-migration.md: mark packages/v8-snapshot-require as completed.

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[cypress]

cypress    Run #66314

Run Properties:   Failed #66314  •  5d84ef94fa: chore: convert v8-snapshot-require tests to vitest

Project	cypress
Branch Review	chore/convert_v8_snapshot_require_vitest
Run status	Failed #66314
Run duration	46m 08s
Commit	5d84ef94fa: chore: convert v8-snapshot-require tests to vitest
Committer	Bill Glesias
View all properties for this run ↗︎

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Test results
Failures	1
Flaky	13
Pending	1102
Skipped	4
Passing	26577
View all changes introduced in this branch ↗︎

---

Warning

Partial Report: The results for the Application Quality reports may be incomplete.

UI Coverage  45.4%
Untested elements	185
Tested elements	158

Accessibility  97.97%
Failed rules	4 critical   8 serious   2 moderate   2 minor
Failed elements	101

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Tests for review

  cypress/e2e/studio/studio.cy.ts • 1 failed test • app-e2e

View Output

Test		Artifacts
Cypress Studio > updates an existing test with assertions		Test Replay Screenshots

  commands/waiting.cy.js • 2 flaky tests • 5x-driver-chrome

View Output

Test		Artifacts
... > errors > throws when route is never resolved		Test Replay
... > errors > throws when waiting for 2nd response to route		Test Replay

  issues/28527.cy.ts • 1 flaky test • 5x-driver-chrome

View Output

Test		Artifacts
issue 28527 > fails and then retries and verifies about:blank is not displayed		Test Replay Screenshots

  e2e/origin/config_env.cy.ts • 1 flaky test • 5x-driver-electron

View Output

Test		Artifacts
cy.origin- Cypress.config() > serializable > overwrites different values in secondary if one exists in the primary		Test Replay

  issues/28527.cy.ts • 1 flaky test • 5x-driver-electron

View Output

Test		Artifacts
issue 28527 > fails and then retries and verifies about:blank is not displayed		Test Replay Screenshots

  e2e/origin/config_env.cy.ts • 1 flaky test • 5x-driver-inject-document-domain-chrome

View Output

Test		Artifacts
cy.origin- Cypress.config() > serializable > overwrites different values in secondary if one exists in the primary		Test Replay

The first 5 flaky specs are shown, see all 11 specs in Cypress Cloud.