a1535ae615
Adding testing for `Size()` on `MeshLabelsIterable` as promised on https://github.com/grpc/grpc/pull/35371
This method doesn't get used the OTel C++ library at present so it was untested earlier, and bugs in its implementation were noticed later. To avoid that issue in the future, adding manual testing of this method.
Changes -
* Moved `MeshLabelsIterable` to the header to be able to test its Size method directly. Also had to move around some internals to be able to do so.
* Replaced `absl::variant<grpc_core::Slice, StructPb> metadata_` from decoding the metadata lazily to just decoding it in the constructor. I don't remember the original thinking behind this. Maybe I wanted the decoding to happen lazily, but there doesn't seem to be much gain from doing it lazily, we instead have to deal with the overhead of `variant`.
Closes #35769
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35769 from yashykt:CsmMeshLabelsIterableSizeTesting
|
||
|---|---|---|
| .. | ||
| BUILD | ||
| csm_observability_test.cc | ||
| mesh_id_test.cc | ||
| metadata_exchange_test.cc | ||