Develop worker indexing unit tests

[anandagopal6]

Unit tests need to be developed to ensure that the worker-indexing code path functions properly.

Potential Test Cases

• GrpcWorkerChannel
  • Mock inbound successful FunctionMetadataResponses event
  • Mock inbound failed FunctionMetadataResponses event
  • TimeoutException for receiving FunctionMetadataResponses
• RpcFunctionInvocationDispatcher
  • Create maxProcessCount GrpcWorkerChannels in reorganized InitializeAsync call
  • Create GrpcWorkerChannels and setup invocation buffers after receiving function metadata
  • Null functions parameter and not worker indexing
• WorkerFunctionMetadataProvider
  • Valid and invalid function name
  • Valid and invalid bindings
  • GetFunctionMetadataAsync mock metadata response and dispatcher
• Utility.CanWorkerIndex()
  • Enabled feature flag + worker config property
  • Enabled feature flag + missing worker config property
  • Disabled feature flag + worker config property
  • Disabled feature flag + missing worker config property
  • Null worker config file
  • Null worker config description
  • Null workerIndexing attribute
• FunctionMetadataManager
  • Mock worker configs and check to see if correct provider is returned
• ScriptStartupTypeLocator
  • If workerIndexing, get all types

[fabiocav]

Closing as the work being tracked here has been completed.