Added test for cert manager

[mudit-01]

Added test for cert manager for a nil ca Fixes #3437

Signed-off-by: mudit singh [email protected]

Description:

Testing done: yes

Affected area:

Functional Area
New Functionality	[ ]
CI System	[ ]
CLI Tool	[ ]
Certificate Management	[ ]
Control Plane	[ ]
Demo	[ ]
Documentation	[ ]
Egress	[ ]
Ingress	[ ]
Install	[ ]
Networking	[ ]
Observability	[ ]
Performance	[ ]
SMI Policy	[ ]
Security	[ ]
Sidecar Injection	[ ]
Tests	[x ]
Upgrade	[ ]
Other	[ ]

Please answer the following questions with yes/no.

1. Does this change contain code from or inspired by another project?

   • Did you notify the maintainers and provide attribution?

2. Is this a breaking change?

[codecov-commenter]

Codecov Report

Merging #4004 (e80dba9) into main (c9d2292) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #4004   +/-   ##
=======================================
  Coverage   67.52%   67.53%           
=======================================
  Files         204      204           
  Lines       11615    11615           
=======================================
+ Hits         7843     7844    +1     
+ Misses       3721     3720    -1     
  Partials       51       51           

Flag	Coverage Δ
unittests	67.53% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/certificate/providers/tresor/certificate.go	100.00% <0.00%> (+4.34%)	⬆️

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[mudit-01]

Hi I am not able to figure out why e2e test is failing would appreciate any guidance for the same

[allenlsy]

@mudit-01 The failure was due to pod not coming up in k8s. I guess this can be happen when Action server does not have enough capacity at that moment. Re-run the jobs later can solve the problem.

[mudit-01]

thanks @allenlsy for the review

[mudit-01]

Thanks @ksubrmnn for the review