interop: meta-issue

[stepancheg]

In order to test how well grpc-rust interoperates with other grpc stacks, we implement the standard interop service.

These test names are standard and defined in the above document.

Go client, Rust server

• [x] empty_unary empty (zero bytes) request and response.
• [ ] cacheable_unary #77
• [x] large_unary single request and (large) response. #39
• [ ] client_compressed_unary
• [ ] server_compressed_unary
• [x] client_streaming request streaming with single response.
• [ ] client_compressed_streaming
• [x] server_streaming single request with response streaming. #41
• [ ] server_compressed_streaming
• [x] ping_pong full-duplex streaming.
• [x] empty_stream full-duplex streaming with zero message.
• [ ] compute_engine_creds large_unary with compute engine auth. (needs TLS)
• [ ] service_account_creds large_unary with service account auth. (needs TLS)
• [ ] jwt_token_creds large_unary with jwt token auth. (needs TLS)
• [ ] oauth2_auth_token large_unary with oauth2 token auth. (needs TLS)
• [ ] per_rpc_creds large_unary with per rpc token. (needs TLS)
• [x] custom_metadata server will echo custom metadata. #43
• [ ] status_code_and_message status code propagated back to client. #42
• [ ] unimplemented_method client attempts to call unimplemented method. #44
• [ ] unimplemented_service client attempts to call unimplemented service. #45
• [ ] cancel_after_begin cancellation after metadata has been sent but before payloads are sent.
• [ ] cancel_after_first_response cancellation after receiving 1st message from the server. "large_unary")
• [ ] timeout_on_sleeping_server fullduplex streaming on a sleeping server.

Rust client, Go server

• [ ] empty_unary empty (zero bytes) request and response.
• [ ] cacheable_unary
• [ ] large_unary single request and (large) response.
• [ ] client_compressed_unary
• [ ] server_compressed_unary
• [ ] client_streaming request streaming with single response.
• [ ] client_compressed_streaming
• [ ] server_streaming single request with response streaming.
• [ ] server_compressed_streaming
• [ ] ping_pong full-duplex streaming.
• [ ] empty_stream full-duplex streaming with zero message.
• [ ] compute_engine_creds large_unary with compute engine auth. (needs TLS)
• [ ] service_account_creds large_unary with service account auth. (needs TLS)
• [ ] jwt_token_creds large_unary with jwt token auth. (needs TLS)
• [ ] oauth2_auth_token large_unary with oauth2 token auth. (needs TLS)
• [ ] per_rpc_creds large_unary with per rpc token. (needs TLS)
• [ ] custom_metadata server will echo custom metadata.
• [ ] status_code_and_message status code propagated back to client.
• [ ] unimplemented_method client attempts to call unimplemented method.
• [ ] unimplemented_service client attempts to call unimplemented service.
• [ ] cancel_after_begin cancellation after metadata has been sent but before payloads are sent.
• [ ] cancel_after_first_response cancellation after receiving 1st message from the server. "large_unary")
• [ ] timeout_on_sleeping_server fullduplex streaming on a sleeping server.