Update helpers_test.go #14
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Signed-off-by: NxPKG <[email protected]>
Reviewer's Guide by SourceryThis PR enhances the BPF helper function testing by introducing capability management and expanding test cases. The implementation adds two new helper functions for managing process capabilities and significantly expands the test matrix with more comprehensive test cases that verify behavior under different capability configurations. Sequence diagram for capability management in testssequenceDiagram
participant Test as TestFuncSupportbyType
participant CM as CapabilityManager
participant BPF as BPFHelperIsSupported
Test->>CM: resetEffectiveCapabilities()
alt Capability is not nil
Test->>CM: enforceEffectiveCapabilities(tc.capability)
end
Test->>BPF: BPFHelperIsSupported(tc.progType, tc.funcId)
BPF-->>Test: support, err
alt errMsg is nil
Test->>Test: Check for no error
else errMsg is not nil
Test->>Test: Check for specific error
end
Class diagram for capability management functionsclassDiagram
class CapabilityManager {
+resetEffectiveCapabilities() error
+enforceEffectiveCapabilities(newCap []string) error
}
class TestFuncSupportbyType {
+progType BPFProgType
+funcId BPFFunc
+supported bool
+capability []string
+errMsg error
}
File-Level Changes
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Caution Review failedThe pull request is closed. WalkthroughThe changes introduce new functions for managing process capabilities in Changes
Sequence Diagram(s)sequenceDiagram
participant Test
participant Helpers
participant BPF
Test->>Helpers: Call resetEffectiveCapabilities()
Helpers-->>Test: Clear effective capabilities
Test->>Helpers: Call enforceEffectiveCapabilities(newCap)
Helpers-->>Test: Set effective capabilities
Test->>BPF: Check support for BPF functions
BPF-->>Test: Return support status
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Hey @NxPKG - I've reviewed your changes and they look great!
Here's what I looked at during the review
- 🟡 General issues: 1 issue found
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟡 Complexity: 1 issue found
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| // current capability | ||
| existing := cap.GetProc() | ||
| // Clear all effective capabilites | ||
| if err := existing.ClearFlag(cap.Effective); err != nil { |
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suggestion: Consider using defer to handle capability restoration
Using defer for original.SetProc() at the start of the function would be more robust and eliminate duplicate cleanup code.
defer original.SetProc()
if err := existing.ClearFlag(cap.Effective); err != nil {| ) | ||
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| // Reset only effective capabilites |
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issue (complexity): Consider simplifying the capability management functions by using defer and consolidating error handling patterns
The capability management functions can be simplified while maintaining the same functionality by:
- Using defer to handle cleanup, eliminating nested error handling:
func resetEffectiveCapabilities() error {
original := cap.GetProc()
defer original.SetProc() // Always restore original state
existing := cap.GetProc()
if err := existing.ClearFlag(cap.Effective); err != nil {
return fmt.Errorf("error cleaning effective capabilities: %w", err)
}
return existing.SetProc()
}- Simplifying enforceEffectiveCapabilities by combining error handling:
func enforceEffectiveCapabilities(newCap []string) error {
existing := cap.GetProc()
enforce := cap.NewSet()
enforce.FillFlag(cap.Permitted, existing, cap.Permitted)
values := make([]cap.Value, 0, len(newCap))
for _, name := range newCap {
value, err := cap.FromName(name)
if err != nil {
return fmt.Errorf("invalid capability %q: %w", name, err)
}
values = append(values, value)
}
if err := enforce.SetFlag(cap.Effective, true, values...); err != nil {
return fmt.Errorf("error setting capabilities: %w", err)
}
return enforce.SetProc()
}These changes:
- Eliminate nested error handling using defer
- Reduce error wrapping verbosity while keeping essential context
- Maintain the same capability management functionality
- Pre-allocate the values slice for better efficiency
Signed-off-by: NxPKG <[email protected]>
Addresses issue: #
Changes proposed in this pull request:
Summary by Sourcery
Enhance the test suite in helpers_test.go by adding capability management functions and updating test cases to include capability checks and error handling.
Enhancements:
Tests:
Summary by CodeRabbit
New Features
Bug Fixes
Tests