test: add new system test for --headless=old

[mschile]

Additional details

• Adds a new system test that passes the --headless=old flag to ensure we can successfully run a spec against the old headless implementation.

Steps to test

How has the user experience changed?

PR Tasks

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

[cypress]

5 flaky tests on run #51116 ↗︎

0

5353

76

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5

Details:

test: add new system test for --headless=old
Project: cypress	Commit: f3a522b387
Status: Passed	Duration: 14:46 💡
Started: Sep 18, 2023 8:46 PM	Ended: Sep 18, 2023 9:00 PM

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

View Output Video

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

  cypress/cypress.cy.js • 3 flaky tests • 5x-driver-electron

View Output Video

Test		Artifacts
... > correctly returns currentRetry		Test Replay Output
... > correctly returns currentRetry		Test Replay Output
... > correctly returns currentRetry		Test Replay Output

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

View Output Video

Test		Artifacts
user agent override > persists modified user agent after cy.go		Test Replay Output

Review all test suite changes for PR #27834 ↗︎