improve error handling in writePacket #1601
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* handle error before success case. * return io.ErrShortWrite if not all bytes were written but err is nil. * return err instead of ErrInvalidConn.
WalkthroughThe recent changes enhance error handling and configuration initialization in the Changes
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Files selected for processing (1)
- packets.go (1 hunks)
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packets.go (2)
127-137: Improved error handling inwritePacketfunction.The changes here handle the case where an error occurs during packet writing more robustly. Specifically, it checks if an error was returned and no bytes were written, then returns
errBadConnNoWrite. This is a good practice as it ensures that the error state of the connection is accurately reported, preventing further operations on a potentially bad connection.
140-145: Ensure proper error handling when packet size written is incorrect.The addition of a check for
io.ErrShortWritewhen the number of bytes written does not match the expected size is a crucial improvement. This adheres to theio.Writerinterface contract, which states that a non-nil error should be returned if the full length of bytes is not written. This change ensures that such protocol violations are correctly handled, improving the robustness of the packet writing logic.
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- connection_test.go (2 hunks)
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connection_test.go (2)
166-167: Initialization ofclosechandcfgin themcstruct enhances the robustness and configurability of the connection handling.
189-190: Changing the error comparison tonc.errinTestPingErrInvalidConnmakes the test more specific and accurate.Verification successful
The review comment is correct. The
nc.erris properly defined and assigned within theconnection_test.gofile, making the test more specific and accurate.
nc := badConnection{err: errors.New("boom")}nc := badConnection{err: errors.New("failed to write"), n: 10}These assignments ensure that
nc.erris set correctly for the error comparison in the test.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the error handling in `TestPingErrInvalidConn` function. # Test: Search for error handling changes. Expect: Only the new error handling logic. rg --type go 'nc.err' connection_test.goLength of output: 110
Script:
#!/bin/bash # Description: Verify the definition and assignment of `nc.err` in connection_test.go. # Search for the definition and assignment of `nc.err` in the file. rg --type go 'nc\.err' connection_test.goLength of output: 113
Script:
#!/bin/bash # Description: Locate the definition and assignment of `nc` in connection_test.go. # Search for the definition and assignment of `nc` in the file. rg --type go '\bnc\b' connection_test.goLength of output: 340
Checklist
Summary by CodeRabbit
Bug Fixes
Tests
TestPingErrInvalidConnfor more accurate test results.