fix: backendRefUnknownKind test case

[ronething]

Signed-off-by: ashing [email protected]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches
• Documentation
• Refactor
• Chore
• CI/CD or Tests

What this PR does / why we need it:

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[Copilot]

Pull Request Overview

This PR fixes the backend reference test case by updating the test suite as well as modifying error handling in backend reference translation and HTTPRoute reconciliation.

• Commented out the backendRef unknown kind test in the conformance tests.
• Updated translateBackendRef to return errors when an unsupported backend kind is provided and enhanced error handling in the HTTPRoute controller.
• Revised the license header in generated deepcopy files.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
test/conformance/conformance_test.go	Commented out the problematic backend reference test case to reflect updated behavior.
internal/provider/adc/translator/httproute.go	Modified translateBackendRef to validate backend kinds and return detailed errors.
internal/controller/utils.go	Adjusted condition reason assignment based on the error message content.
internal/controller/httproute_controller.go	Enhanced HTTPRoute reconciliation logic to propagate backend reference errors appropriately.
api/dashboard/v1/zz_generated.deepcopy.go	Updated the license header formatting.

[Copilot]

[nitpick] Consider adding an inline comment explaining why the HTTPRouteInvalidBackendRefUnknownKind test is commented out to clarify that this change is intentional.

Suggested change

	// tests.HTTPRouteInvalidBackendRefUnknownKind.ShortName,
	// tests.HTTPRouteInvalidBackendRefUnknownKind.ShortName, // Commented out because this test is not applicable to the current implementation. See issue tracker for details.

[Copilot]

Enhance the error message here by including additional context (e.g., backend reference name or namespace) to improve debugging when an unsupported kind is encountered.

Suggested change

	return adctypes.UpstreamNodes{}, fmt.Errorf("kind %s is not supported", *ref.Kind)
	key := types.NamespacedName{
	Namespace: string(*ref.Namespace),
	Name: string(ref.Name),
	}
	return adctypes.UpstreamNodes{}, fmt.Errorf("kind %s is not supported for backend reference %s", *ref.Kind, key)

[Copilot]

[nitpick] Consider adding logging for the backend reference error (httpRouteErr) before setting the resolveRefStatus so that the issue is more easily traceable in production environments.

Suggested change

	if httpRouteErr != nil && strings.Contains(httpRouteErr.Error(), string(gatewayv1.RouteReasonInvalidKind)) {
	if httpRouteErr != nil && strings.Contains(httpRouteErr.Error(), string(gatewayv1.RouteReasonInvalidKind)) {
	r.Log.Error(httpRouteErr, "Backend reference error due to invalid kind encountered while processing HTTPRoute")

[github-actions]

conformance test report

apiVersion: gateway.networking.k8s.io/v1
date: "2025-05-09T06:57:58Z"
gatewayAPIChannel: standard
gatewayAPIVersion: v1.2.0
implementation:
  contact: null
  organization: APISIX
  project: apisix-ingress-controller
  url: https://github.com/apache/apisix-ingress-controller.git
  version: v2.0.0
kind: ConformanceReport
mode: default
profiles:
- core:
    result: partial
    skippedTests:
    - GatewayInvalidTLSConfiguration
    - GatewaySecretInvalidReferenceGrant
    - GatewaySecretMissingReferenceGrant
    - HTTPRouteHTTPSListener
    - HTTPRouteHostnameIntersection
    - HTTPRouteInvalidCrossNamespaceBackendRef
    - HTTPRouteInvalidCrossNamespaceParentRef
    - HTTPRouteInvalidNonExistentBackendRef
    - HTTPRouteInvalidParentRefNotMatchingSectionName
    - HTTPRouteInvalidReferenceGrant
    - HTTPRouteListenerHostnameMatching
    - HTTPRoutePartiallyInvalidViaInvalidReferenceGrant
    - HTTPRouteReferenceGrant
    statistics:
      Failed: 0
      Passed: 20
      Skipped: 13
  name: GATEWAY-HTTP
  summary: Core tests partially succeeded with 13 test skips.