check subscription header and message on manage manifest page

[vijaysawant]

Problem Statement

• Considering newly implemented 6.16.0 feature/RFE "Notification when manifest is going to expire" and reported bug "Manifest expiration date (year) shows older for all manifest" it is neccessary to check manifest expiration message is disappearing when manifest upload very first time into organization.
• It was left behind because related airgun PR merged very early phase of testing.
• During phoenix qe team discussion, we have decided to open new robottelo PR and airgun PR to validate manifest expiration header message functionality before updating settings value (expire_soon_days)

Solution

Simple assertion is required in existing test case

Related PR

Airgun support SatelliteQE/airgun#1443

PRT test Cases example

trigger: test-robottelo
pytest: tests/foreman/ui/test_subscription.py -k 'test_positive_check_manifest_validity_notification'
airgun: 1443

[vijaysawant]

trigger: test-robottelo
pytest: tests/foreman/ui/test_subscription.py -k 'test_positive_check_manifest_validity_notification'
airgun: 1443

[Satellite-QE]

PRT Result

Build Number: 7496
Build Status: SUCCESS
PRT Comment: pytest tests/foreman/ui/test_subscription.py -k test_positive_check_manifest_validity_notification --external-logging
Test Result : ========== 1 passed, 10 deselected, 20 warnings in 907.94s (0:15:07) ===========

[vijaysawant]

trigger: test-robottelo
pytest: tests/foreman/ui/test_subscription.py -k 'test_positive_check_manifest_validity_notification'
airgun: 1443

[Satellite-QE]

PRT Result

Build Number: 7525
Build Status: SUCCESS
PRT Comment: pytest tests/foreman/ui/test_subscription.py -k test_positive_check_manifest_validity_notification --external-logging
Test Result : ========== 1 passed, 10 deselected, 20 warnings in 900.82s (0:15:00) ===========