test(bigtable): enable ChecksumMismatch conformance test

[mpeddada1]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @mpeddada1, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing the robustness of the Bigtable client by enabling a critical conformance test. Specifically, it re-activates the ChecksumMismatch test, which verifies the client's behavior when data integrity issues are detected. This change helps ensure that the client can reliably handle corrupted data scenarios, thereby improving overall system stability and data reliability.

Highlights

• Enabled ChecksumMismatch Conformance Test: The ChecksumMismatch conformance test has been re-enabled by removing it from the -skip list in the run_conformance_tests_proxy_bazel.sh script. This ensures that the Bigtable client's handling of checksum mismatches is now being actively tested.
• Test Script Cleanup: The ChecksumMismatch entry was also removed from a commented-out go test -run command within the same script, aligning the commented section with the active test configuration.

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[gemini-code-assist]

Code Review

This pull request enables the ChecksumMismatch conformance test by removing it from a skip list and cleaning up a related comment. The changes are logical and achieve the stated goal. I have added one comment with a suggestion to improve the readability and maintainability of the shell script by refactoring a very long line.

[gemini-code-assist]

This line is extremely long (over 250 characters), which harms readability and maintainability. Consider refactoring this long list of skipped tests into a shell array to make it easier to manage.

For example:

local -a skip_tests=(
  "CloseClient"
  "FailsOnEmptyMetadata"
  "FailsOnExecuteQueryMetadata"
  # ... and so on for each test to skip
)

local skip_arg
skip_arg="$(IFS='|'; echo "${skip_tests[*]}")"

go test -v \
  -run "..." \
  -skip "${skip_arg}" \
  ...

This approach makes the list of skipped tests much clearer and easier to modify.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.95%. Comparing base (41ea3fc) to head (fe47f12).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15777      +/-   ##
==========================================
- Coverage   92.95%   92.95%   -0.01%     
==========================================
  Files        2454     2454              
  Lines      226685   226685              
==========================================
- Hits       210721   210717       -4     
- Misses      15964    15968       +4     

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