fix for ContentView server_config auth values

[vijaysawant]

Description of problem

• from api/tests function of test_contentview.py at line 1176 after call to read() get resolve auth values of "custom user" changes to "admin user".
• server_config changed inside EntityReadMixin > read() line 826
• So the custom user with readonly role able to perform other operations on ContentView, operations like delete, update, publish and pramote.

[omkarkhatavkar]

Can one of the admins verify this patch?

[omkarkhatavkar]

trigger: test-robottelo
pytest: tests/foreman/api/test_contentview.py -k 'test_positive_readonly_user_actions'

[omkarkhatavkar]

trigger: test-robottelo
pytest: tests/foreman/api/test_contentview.py -k 'test_negative_readonly_user_actions'

[vijaysawant]

trigger: test-robottelo
pytest: tests/foreman/api/test_contentview.py -k 'test_negative_readonly_user_actions'

[omkarkhatavkar]

CI failure will be fixed by @sambible PR https://github.com/SatelliteQE/nailgun/pull/841/files#diff-da24b355349b53e4c8047034767d008e4c2ce9ea6c8933a3acd50d0828f00528R9

[jyejare]

All looks good just add the appropriate labels for Cherrypicking.

Also please fix the CI failures by you or @sam Bible.

[ogajduse]

This looks like something that we would like to have fixed not only for ContentView class, am I right?

[vijaysawant]

trigger: test-robottelo
pytest: tests/foreman/api/test_contentview.py -k test_negative_readonly_user_actions

[jyejare]

@ogajduse Raised MR #867 to fix unit tests failing for all open PRs now. Will merge it once the checks passing!

[codecov-commenter]

Codecov Report

Base: 93.85% // Head: 93.73% // Decreases project coverage by -0.12% ⚠️

Coverage data is based on head (59600e8) compared to base (bd34895).
Patch coverage: 42.85% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #864      +/-   ##
==========================================
- Coverage   93.85%   93.73%   -0.13%     
==========================================
  Files           6        6              
  Lines        2899     2906       +7     
==========================================
+ Hits         2721     2724       +3     
- Misses        178      182       +4     

Impacted Files	Coverage Δ
nailgun/entities.py	93.16% <42.85%> (-0.16%)	⬇️

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