test(SuccessGuide-error-resilience): verify Hydration Stability, Exception Safety & Error Fallbacks (Variation 6)

[souravjhahind]

🧩 Background

The component/utility at app/components/SuccessGuide.tsx needs isolated unit and integration testing. This issue focuses specifically on Hydration Stability, Exception Safety & Error Fallbacks. Unexpected background service interruptions or server anomalies should never result in screen crashes.

🎯 Objective

Create the new test file app/components/SuccessGuide.error-resilience.test.tsx targeting Hydration Stability, Exception Safety & Error Fallbacks and achieve complete coverage on the specified conditions.

📁 Files to touch

• app/components/SuccessGuide.error-resilience.test.tsx (new)

🛠️ Implementation steps

• Mock nested child properties to throw unexpected runtime exceptions or database connectivity errors.
• Encase execution calls in localized boundary elements.
• Assert that target modules render a clean error recovery UI instead of crashing the site.
• Verify exceptions are logged to dev-telemetry trackers appropriately.
• Ensure user reset/reload paths are available on the recovery panels.

✅ Definition of done

• 5 test cases.
• vitest run passes.

[sheeeuWu]

HI @souravjhahind and @Aamod007
The parent component LandingPageClient does have real error-handling logic (DownloadPDF, the user-details fetch effect, copyToClipboard), but none of it lives inside SuccessGuide, so it's out of scope for this issue
Requesting to close this issue. If left open, someone might misunderstand it and end up writing unnecessary or unrelated code just to satisfy the checklist