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Test for grpc metadata headers by v-pratap · Pull Request #16046 · googleapis/google-cloud-cpp

Summary of Changes

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This pull request significantly refactors the async_client_integration_test.cc file by removing a substantial portion of existing async client integration tests. It introduces new infrastructure, including a ThreadPool class and associated helper functions, to facilitate more advanced and potentially concurrent testing. A new test case for appendable object uploads is added, which, based on the PR title and description, is intended to lay the groundwork for testing gRPC metadata headers.

Highlights

  • Refactored Async Client Integration Tests: A large suite of existing async client integration tests, including ObjectCRUD, ComposeObject, StreamingRead, and various upload/rewrite tests, were removed from async_client_integration_test.cc to streamline the test file.
  • Introduced Thread Pool Utility: A new ThreadPool class, along with helper functions MakeOptions, MakeGrpcClient, MakeAsyncClient, and ReadRangeTask, was added, indicating preparation for more complex, potentially concurrent, testing scenarios related to gRPC.
  • New Appendable Upload Test: A new integration test, StartAppendableUploadEmpty, was implemented, focusing on appendable object uploads. This test appears to be a foundational step for validating gRPC metadata headers, aligning with the PR's title and description.
Changelog
  • google/cloud/storage/tests/async_client_integration_test.cc
    • Removed include for google/cloud/storage/async/options.h.
    • Added include for google/cloud/opentelemetry_options.h.
    • Added standard library includes for <queue> and <thread>.
    • Removed the SetUp method and bucket_name_ member from the AsyncClientIntegrationTest class.
    • Deleted numerous existing integration test cases (e.g., ObjectCRUD, ComposeObject, StreamingRead, various upload and rewrite tests).
    • Introduced new helper functions: MakeOptions, MakeGrpcClient, and MakeAsyncClient.
    • Implemented a ThreadPool class to manage concurrent task execution.
    • Defined the ReadRangeTask function for handling asynchronous object range reads.
    • Added a new integration test named StartAppendableUploadEmpty.
Activity
  • The PR description provides detailed instructions for running a script with specific environment variables (CLOUD_STORAGE_ENABLE_TRACING, GOOGLE_CLOUD_CPP_ENABLE_CLOG, GRPC_VERBOSITY, GRPC_TRACE) to enable gRPC tracing and logging, suggesting active debugging and testing of gRPC metadata headers.
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