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fix: if err & response are nil, return default status #546

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merged 1 commit into from
Aug 17, 2024

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@danielgtaylor danielgtaylor commented Aug 17, 2024

Handle a special case where a handler with a response body returns a nil error and response struct. This just returns the operation's default status code. This should not be a common case, but is friendlier behavior than having the code panic.

Fixes #544

Summary by CodeRabbit

  • New Features

    • Enhanced error handling in the registration process, ensuring graceful management of cases with no output.
  • Tests

    • Introduced a new test case to verify the behavior of the system when a nil response is returned, ensuring the application does not panic and defaults to the correct HTTP status.

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coderabbitai bot commented Aug 17, 2024

Walkthrough

The changes introduce a conditional check in the Register function to handle nil outputs more gracefully, preventing panics in the application. A new test case is added to ensure that when a handler returns both nil output and error, the system responds with a default HTTP status code without crashing. These improvements enhance error handling and increase the robustness of the API's control flow.

Changes

Files Change Summary
huma.go, huma_test.go Added a conditional check in Register to manage nil outputs and created a test case to validate that the API responds correctly without panicking when both output and error are nil.

Assessment against linked issues

Objective Addressed Explanation
Returning nil for both output struct and error does not panic (#544)

Poem

🐰 In the meadow where code does play,
A handler learned to find its way.
With checks in place, no more fright,
Even nils can now take flight!
Robust and strong, the API beams,
As rabbits hop and chase their dreams! 🌼


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codecov bot commented Aug 17, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.76%. Comparing base (912f02e) to head (fc4ed20).
Report is 2 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main     #546   +/-   ##
=======================================
  Coverage   92.76%   92.76%           
=======================================
  Files          22       22           
  Lines        3883     3886    +3     
=======================================
+ Hits         3602     3605    +3     
  Misses        236      236           
  Partials       45       45           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 912f02e and fc4ed20.

Files selected for processing (2)
  • huma.go (1 hunks)
  • huma_test.go (1 hunks)
Additional comments not posted (2)
huma.go (1)

1382-1387: Handle nil output and error gracefully.

The added conditional check ensures that when both the output and error are nil, the function sets the HTTP status to op.DefaultStatus and returns early. This prevents potential panics or unintended 500 errors, aligning with the PR objectives to enhance robustness.

huma_test.go (1)

1435-1457: Add test case for nil response and error.

The new test case "response-nil" ensures that when both the response and error are nil, the system returns the default status code (200) without panicking. This test effectively validates the changes made in the Register function to handle this edge case.

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Successfully merging this pull request may close these issues.

returning nil for both the output struct and the error from a handler panics
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