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Fix stdio test compilation issues in CI #240

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Merged
merged 1 commit into from
May 4, 2025
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ezynda3
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@ezynda3 ezynda3 commented May 4, 2025

Summary

  • Fixed test failures in CI by improving the test binary compilation process
  • Added -buildmode=pie flag to fix linking issues in CI environment
  • Improved temporary file handling with os.CreateTemp()
  • Added verification that binaries exist after compilation
  • Fixed variable shadowing issues

Test plan

  • All tests now pass locally
  • CI should now pass all tests

🤖 Generated with opencode

Summary by CodeRabbit

  • Tests
    • Improved handling of temporary files during test execution for greater reliability.
    • Enhanced error handling and naming for better clarity in test output.
    • Added verification to ensure test binaries are properly compiled before use.

This PR fixes the test failures in CI by:
1. Using -buildmode=pie flag when compiling test binaries
2. Using os.CreateTemp() for more reliable temporary file creation
3. Verifying binary existence after compilation
4. Fixing variable shadowing issues

🤖 Generated with opencode
Co-Authored-By: opencode <[email protected]>
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coderabbitai bot commented May 4, 2025

Walkthrough

The changes update test code related to compiling and executing mock server binaries in two test files. The process for determining the path for the mock server binary now uses os.CreateTemp to create a temporary file, which is then closed and its name used as the binary path. On Windows, the temporary file is deleted and a .exe extension is appended. The Go build command for the mock server adds the -buildmode=pie flag. Error variable names are made more descriptive, and an additional check ensures the compiled binary exists after building.

Changes

File(s) Change Summary
client/stdio_test.go Replaced "path/filepath" import with "runtime"; used os.CreateTemp for mock server path; added -buildmode=pie to build; improved error variable naming and handling; updated Windows-specific logic for binary path.
client/transport/stdio_test.go Refactored temporary file handling for mock server binary using os.CreateTemp; added -buildmode=pie to build; checked binary existence post-build; improved error variable naming; updated Windows binary handling.
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Actionable comments posted: 0

🧹 Nitpick comments (1)
client/transport/stdio_test.go (1)

70-70: Extremely long timeout value.

The timeout of 5000000000 seconds (approximately 158 years) seems excessive. Consider using a more reasonable timeout value, such as 5-30 seconds.

-		ctx, cancel := context.WithTimeout(context.Background(), 5000000000*time.Second)
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 6d55e4e and d970708.

📒 Files selected for processing (2)
  • client/stdio_test.go (3 hunks)
  • client/transport/stdio_test.go (6 hunks)
🔇 Additional comments (21)
client/stdio_test.go (6)

10-10: Appropriate package replacement.

The switch from "path/filepath" to "runtime" is correct as the code needs to detect the operating system for Windows-specific handling.


22-22: Good addition of -buildmode=pie flag.

Adding this flag addresses the linking problems mentioned in the PR objectives, which should fix the CI compilation issues.


30-32: Great defensive programming.

Adding this verification ensures the binary exists after compilation, which helps catch potential issues early and provides a clearer error message.


38-44: Improved temporary file handling.

Using os.CreateTemp() is a better approach than hardcoded paths as it:

  1. Ensures a unique file name
  2. Handles platform-specific temp directories
  3. Properly manages file permissions

This is consistent with the PR objectives.


46-49: Correct Windows-specific handling.

The Windows-specific handling is improved by explicitly removing the empty file before appending the .exe extension, which prevents potential issues with file existence and permissions.


51-53: Better variable naming to avoid shadowing.

Using compileErr instead of reusing err avoids variable shadowing, making the code more maintainable and less error-prone.

client/transport/stdio_test.go (15)

21-21: Good addition of -buildmode=pie flag.

Adding this flag addresses the linking problems mentioned in the PR objectives, which should fix the CI compilation issues.


29-32: Great defensive programming.

Adding this verification ensures the binary exists after compilation, which helps catch potential issues early and provides a clearer error message.


38-44: Improved temporary file handling.

Using os.CreateTemp() is a better approach than hardcoded paths as it ensures a unique file name and handles platform-specific temp directories properly.


47-47: Correct Windows-specific handling.

Explicitly removing the empty file before appending the .exe extension prevents potential issues with file existence and permissions on Windows.


51-53: Better variable naming to avoid shadowing.

Using compileErr instead of reusing err avoids variable shadowing, making the code more maintainable and less error-prone.


63-65: Better variable naming to avoid shadowing.

Using startErr instead of reusing err avoids variable shadowing and makes the code more readable.


322-329: Consistent temporary file handling.

The implementation here is consistent with the pattern used elsewhere - creating a temporary file, closing it immediately, and using its name for the binary path.


332-332: Correct Windows-specific handling.

Explicitly removing the empty file before appending the .exe extension prevents potential issues with file existence on Windows.


336-338: Better variable naming to avoid shadowing.

Using compileErr instead of reusing err avoids variable shadowing, making the code more maintainable and less error-prone.


352-357: Improved error handling and variable naming.

Using a distinct variable name (reqErr) avoids shadowing and the error check has been updated to properly validate the error message, which is more precise.


361-368: Consistent temporary file handling.

The implementation here is consistent with the pattern used elsewhere in the codebase, creating an isolated test environment.


371-371: Correct Windows-specific handling.

Explicitly removing the empty file before appending the .exe extension prevents potential issues with file existence on Windows.


375-377: Better variable naming to avoid shadowing.

Using compileErr instead of reusing err avoids variable shadowing, keeping the code clean and maintainable.


385-387: Better variable naming to avoid shadowing.

Using startErr instead of reusing err avoids variable shadowing, making the code more readable and less error-prone.


402-405: Better variable naming to avoid shadowing.

Using sendErr instead of reusing err avoids variable shadowing, improving code clarity.

@ezynda3 ezynda3 merged commit 5244489 into main May 4, 2025
2 checks passed
tendant pushed a commit to tendant/mcp-go that referenced this pull request May 8, 2025
This PR fixes the test failures in CI by:
1. Using -buildmode=pie flag when compiling test binaries
2. Using os.CreateTemp() for more reliable temporary file creation
3. Verifying binary existence after compilation
4. Fixing variable shadowing issues

🤖 Generated with opencode
Co-Authored-By: opencode <[email protected]>
adlternative pushed a commit to adlternative/mcp-go that referenced this pull request May 20, 2025
This PR fixes the test failures in CI by:
1. Using -buildmode=pie flag when compiling test binaries
2. Using os.CreateTemp() for more reliable temporary file creation
3. Verifying binary existence after compilation
4. Fixing variable shadowing issues

🤖 Generated with opencode
Co-Authored-By: opencode <[email protected]>
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