gRPC Advanced protobuf related tests added to match documentation update coming for microservices/gRPC

[anton-alation]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[X] Other... Please describe:

Tests added for protobuf namespaced case:

• loading with a single root file
• namespaced dependencies in proto
• @Client configuration load with namespace extension
• Stream handlers

What is the current behavior?

Currently only simplified proto loading and tests introduced.

Issue Number: N/A

What is the new behavior?

A little bit more tests for advanced protobuf conception introduced, along with proto examples.

Does this PR introduce a breaking change?

[ ] Yes
[X] No

Other information

[coveralls]

Pull Request Test Coverage Report for Build 2536

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.601%

---

Totals
Change from base Build 2188:	0.0%
Covered Lines:	3098
Relevant Lines:	3251

---

💛 - Coveralls

[kamilmysliwiec]

Thanks! I'll look at it shortly

[kamilmysliwiec]

Thank you!

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.