2068 AutoApprovers tests #2105
2068 AutoApprovers tests #2105
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Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
WalkthroughThe changes involve significant updates to the testing framework and utility functions within the codebase. The Changes
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Actionable comments posted: 1
Outside diff range, codebase verification and nitpick comments (1)
hscontrol/db/node_test.go (1)
Line range hint
522-649: Refactor and Enhance Test Coverage for Auto-Approval LogicThe refactoring of
TestAutoApproveRoutesfrom using thecheckpackage to thetestingpackage with theassertlibrary is a significant improvement. This change enhances readability and aligns with modern Go testing practices. The use of a table-driven test structure is commendable as it allows for clearer and more scalable test scenarios.Detailed Observations and Suggestions:
Table-Driven Testing: The introduction of table-driven tests (lines 522-587) is well-executed. Each test case clearly defines its parameters and expected outcomes, which improves maintainability and clarity.
Error Handling and Assertions: The use of
assert.NoError(lines 592, 595, 599, 602, 624, 627, 631, 635, 638) for error checking is appropriate and makes the tests more readable. However, ensure that all potential error paths are tested to maintain robustness.Sorting Mechanism: The sorting of routes before comparison (lines 641-643) is crucial for consistent test results, given that slice order in Go is not guaranteed. This is a good practice to ensure that tests are deterministic.
Use of
cmp.Difffor Comparison: The use ofcmp.Diff(lines 645-647) for comparing expected and actual results is effective and provides clear output for test failures, which aids in debugging.Potential Enhancements:
- Coverage of Edge Cases: Consider adding more test cases to cover edge scenarios, such as ACLs with overlapping rules or malformed inputs. This will ensure that the auto-approval logic is robust against various configurations.
- Performance Considerations: If the test dataset grows, consider benchmarking the tests to ensure that performance remains optimal, especially when processing large ACL configurations.
Overall, the changes are a substantial improvement to the testing strategy and should provide reliable validation for the auto-approval functionality.
Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Files selected for processing (3)
- hscontrol/db/node_test.go (3 hunks)
- hscontrol/poll.go (3 hunks)
- hscontrol/util/net.go (1 hunks)
Additional comments not posted (2)
hscontrol/util/net.go (1)
18-31: Review of the newComparePrefixfunction.The
ComparePrefixfunction is well-documented and follows a logical sequence in comparing twonetip.Prefixinstances. Here are a few observations and suggestions:
Correctness and Logic:
- The function correctly implements the comparison based on multiple criteria such as validity, address family, prefix length, and address. This should work well for the intended use case of sorting or comparing network prefixes.
Performance:
- Using the
cmppackage for comparing integers (bit lengths and bits) is efficient. However, ensure that thecmp.Comparefunction is optimised for these operations, as custom comparison logic might sometimes be faster for simple integer comparisons.Maintainability:
- The function is temporary and is expected to be replaced by standard library functionality in future Go releases. This is noted in the TODO comment, but it would be beneficial to ensure that all developers are aware of this impending change.
Documentation:
- The comments provide clear documentation on what the function does and its return values. Consider adding examples of usage or more detailed descriptions of each comparison stage for better understanding.
Dependency on
cmppackage:
- Verify that the
cmppackage is a standard and maintained package. If it is a custom or lesser-known package, consider the implications of maintenance and support.Consider implementing a simpler integer comparison for performance reasons if benchmarks show that
cmp.Compareis a bottleneck.Would you like me to benchmark the performance of
cmp.Compareversus custom integer comparison logic?hscontrol/poll.go (1)
744-744: Verify the implementation and impact ofutil.ComparePrefix.The replacement of the local
comparePrefixfunction withutil.ComparePrefixfrom theutilpackage is a significant change. It's crucial to ensure that this utility function correctly implements the required logic for comparing IP prefixes, especially given the context of the PR which aims to fix route auto-approval issues.Run the following script to verify the implementation of
util.ComparePrefix:Also applies to: 747-747
Verification successful
Verified: Implementation and impact of
util.ComparePrefixare correct.The
util.ComparePrefixfunction is implemented inhscontrol/util/net.goand correctly compares IP prefixes by validity, address family, prefix length, and address. This implementation supports the changes made inhscontrol/poll.goand aligns with the PR's objectives related to route auto-approval.
hscontrol/util/net.go: Implementation ofComparePrefix.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the implementation of `util.ComparePrefix`. # Test: Search for the implementation of `util.ComparePrefix`. Expect: Correct logic for comparing IP prefixes. ast-grep --lang go --pattern $'func ComparePrefix($_, $_) $_ { $$$ }'Length of output: 70
Script:
#!/bin/bash # Description: Search for the term `ComparePrefix` across the codebase to locate its definition or references. # Use ripgrep to search for `ComparePrefix` in the codebase. rg 'ComparePrefix' --context 5Length of output: 2035
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| // TODO(kradalby): Remove after go 1.24, will be in stdlib. |
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Clarify the TODO comment for future maintainability.
The TODO comment mentions removing this function after Go 1.24 is released. It would be beneficial to include more context about why this function will be deprecated, possibly linking to relevant discussions or documentation that explain the inclusion of similar functionality in the standard library.
Would you like me to help by adding a link to the Go 1.24 release notes or feature discussion?
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Can you add a link to golang/go#61642 which described the issue and that it will be fixed in go 1.24
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@kradalby Sure, I will add the link to the Go issue (golang/go#61642) in the TODO comment to provide context for future maintainers. This will clarify why the ComparePrefix function is temporary and when it can be removed.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
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Actionable comments posted: 1
Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Files selected for processing (2)
- .github/workflows/test-integration.yaml (1 hunks)
- integration/route_test.go (2 hunks)
Additional comments not posted (1)
.github/workflows/test-integration.yaml (1)
58-58: Approval of the new test job addition.The addition of
TestAutoApprovedSubRoute2068is a positive step towards ensuring that the auto-approval functionality for sub-routes is thoroughly tested. It is crucial to verify that this test covers all aspects of the scenario described in issue #2068 to ensure comprehensive testing.Please confirm that the test implementation fully addresses the specific conditions outlined in the issue.
Fixes #2068
Summary by CodeRabbit
New Features
Refactor
hostInfoChangedfunction by removing redundant code and utilising a centralised comparison method.Bug Fixes