csireverseproxy/pkg/k8sutils - UT improvements

[bharathsreekanth]

Description

csireverseproxy/pkg/k8sutils - UT improvements to bring the coverage to > 90%

K8sUtils.go needed some refactoring to enable mocking of functions that rely on a really k8s cluster. Those functions are now injected.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #

Checklist:

• Have you run format,vet & lint checks against your submission?
• Have you made sure that the code compiles?
• Did you run the unit & integration tests successfully?
• Have you maintained at least 90% code coverage?
• Have you commented your code, particularly in hard-to-understand areas
• Have you done corresponding changes to the documentation
• Did you run tests in a real Kubernetes cluster?
• Backward compatibility is not broken

How Has This Been Tested?

Unit test: ok revproxy/v2/pkg/k8sutils 0.347s coverage: 91.4% of statements
cert-csi (with image built from this branch) :
Tests:

1. TestCase: VolumeIoSuite
   Started: 2025-02-06 17:19:57.780393693 +0000 UTC
   Ended: 2025-02-06 17:30:38.373937927 +0000 UTC
   Result: SUCCESS

        Stage metrics:
                PVCBind:
                    Avg: 17.382461335s
                    Min: 15.589933826s
                    Max: 20.551724538s
                    Histogram:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCBind.png
                    BoxPlot:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCBind_boxplot.png
                PVCCreation:
                    Avg: 29.41074961s
                    Min: 25.821657649s
                    Max: 30.510545947s
                    Histogram:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCCreation.png
                    BoxPlot:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCCreation_boxplot.png
                PVCDeletion:
                    Avg: 20.078421ms
                    Min: 11.017222ms
                    Max: 28.940655ms
                    Histogram:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCDeletion.png
                    BoxPlot:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCDeletion_boxplot.png
                PVCUnattachment:
                    Avg: 48.76283745s
                    Min: 1.547998164s
                    Max: 2m14.31527196s
                    Histogram:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCUnattachment.png
                    BoxPlot:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PVCUnattachment_boxplot.png
                PodCreation:
                    Avg: 1m9.01128671s
                    Min: 35.429748497s
                    Max: 1m44.787175865s
                    Histogram:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PodCreation.png
                    BoxPlot:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PodCreation_boxplot.png
                PodDeletion:
                    Avg: 15.365804695s
                    Min: 6.413416424s
                    Max: 26.706273431s
                    Histogram:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PodDeletion.png
                    BoxPlot:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/PodDeletion_boxplot.png
                    EntityNumberOverTime:
    /root/.cert-csi/reports/test-run-4b20b09e/VolumeIoSuite6/EntityNumberOverTime.png
   

[2025-02-06 17:30:38] INFO Avg time of a run: 626.82s
[2025-02-06 17:30:38] INFO Avg time of a del: 12.01s
[2025-02-06 17:30:38] INFO Avg time of all: 640.59s