Check for abandoned child start events

[laurakwhit]

Description & motivation 💭

• Checks for ChildWorkflowExecutionStartedEvents that don't have a corresponding closed event and displays them under Relationships > Children.
• Fixes rendering bug if there are children without a runId.

Screenshots (if applicable) 📸

Design Considerations 🎨

Testing 🧪

How was this tested 👻

• Manual testing
• E2E tests added
• Unit tests added

Steps for others to test: 🚶🏽‍♂️🚶🏽‍♀️

• Verify child events show up as expected under Relationships > Children
  • when events are in ascending order
  • when events are in descending order
  • when all child events have been completed (no duplicates)
  • when some child started events don't have corresponding closed events

Checklists

Draft Checklist

Merge Checklist

Issue(s) closed

DT-1531

Docs

Any docs updates needed?

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1 Ignored Deployment

Name	Status	Preview	Updated (UTC)
holocene	⬜️ Ignored (Inspect)		Oct 27, 2023 6:28pm

[Alex-Tideman]

Just a general question: How can you abandon a child workflow? What's the situation where it doesn't complete/fail/cancel/terminate...

Also when I run samples-typescript / child-workflows, I don't get any errors (not on this branch). Do I need to do something to trigger the error?

[laurakwhit]

Just a general question: How can you abandon a child workflow? What's the situation where it doesn't complete/fail/cancel/terminate...

Looks like you can abandoned children if the parent needs to close but children are still running.

Also when I run samples-typescript / child-workflows, I don't get any errors (not on this branch). Do I need to do something to trigger the error?

See this comment.

[laurakwhit]

Update: In testing it appears that children that haven't completed once a parent with an abandon child policy closes should continue to show up as pending children (even once the children complete). Awaiting further repro. info.