test(spanner): initialize _client_info with ClientInfo instance in mock client - #18009
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…ck client Replace CrossSync.Mock() and mock.Mock() with gapic_v1.client_info.ClientInfo() in _Client test helper mocks in test_database.py and _async/test_database.py. In google-api-core (PR #17616), GapicCallable pre-extracts the metrics header from metadata at initialization time via client_info.to_grpc_metadata(). Using an AsyncMock or Mock for client_info caused to_grpc_metadata() to return a coroutine or Mock object instead of the expected (key, value) metadata tuple, leading to a TypeError in core_deps_from_source sessions.
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This pull request updates the unit tests for the Google Cloud Spanner database by replacing mock client info objects with concrete gapic_v1.client_info.ClientInfo() instances in both synchronous and asynchronous test files. There are no review comments, so I have no feedback to provide.
sinhasubham
approved these changes
Aug 6, 2026
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Replace CrossSync.Mock() and mock.Mock() with gapic_v1.client_info.ClientInfo() in _Client test helper mocks in test_database.py and _async/test_database.py.
In google-api-core (PR #17616), GapicCallable pre-extracts the metrics header from metadata at initialization time via client_info.to_grpc_metadata(). Using an AsyncMock or Mock for client_info caused to_grpc_metadata() to return a coroutine or Mock object instead of the expected (key, value) metadata tuple, leading to a TypeError in core_deps_from_source sessions.
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Fixes #<issue_number_goes_here> 🦕