[action] [PR:13290] [T2-Chassis] - New tests for Reliable-TSA feature

[mssonicbld]

Description of PR

Summary:
Fixes # (issue)

• This PR has tests to verify the changes introduced as part of #[TSA] Reliable TSA: Addressing pizza box issues sonic-buildimage#19217. The original code PR for the feature is #Reliable TSA implementation sonic-buildimage#18928
• HLD link for the feature: https://github.com/skeesara-nokia/SONiC/blob/master/doc/voq/Reliable_TSA.md
• Basically, this PR has 20 test cases to verify the feature functionality and also few modifications on the tests introduced as part of PR Additional test cases to verify 'startup_tsa_tsb.service' - PR#18496 PR#12238 #12781

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405

Approach

What is the motivation for this PR?

• To verify the feature functionality and the code changes introduced as part of the PR #Reliable TSA implementation sonic-buildimage#18928

How did you do it?

• Added 20 new test cases to verify feature in three sets.
• Attaching test cases' description document here for further reference.
• Reliable-TSA-Cases.xlsx

1. First set: TSA/TSB config event on the supervisor or line card. (8 cases)
   test_sup_tsa_act_when_sup_duts_on_tsb_initially
   test_sup_tsa_act_when_sup_on_tsb_duts_on_tsa_initially
   test_sup_tsb_act_when_sup_on_tsa_duts_on_tsb_initially
   test_sup_tsb_act_when_sup_and_duts_on_tsa_initially
   test_dut_tsa_act_when_sup_duts_on_tsb_initially
   test_dut_tsa_act_when_sup_on_tsa_duts_on_tsb_initially
   test_dut_tsb_act_when_sup_on_tsb_duts_on_tsa_initially
   test_dut_tsb_act_when_sup_and_duts_on_tsa_initially

2. Second set: Config event followed by certain action on the supervisor or line card. (8 cases)
   test_sup_tsa_act_with_sup_reboot
   test_sup_tsa_act_when_duts_on_tsa_with_sup_config_reload
   test_dut_tsa_act_with_reboot_when_sup_dut_on_tsb_init
   test_dut_tsa_with_conf_reload_when_sup_on_tsa_dut_on_tsb_init
   test_sup_tsb_followed_by_dut_bgp_restart_when_sup_on_tsa_duts_on_tsb
   test_sup_tsb_followed_by_dut_bgp_restart_when_sup_and_duts_on_tsa
   test_dut_tsb_followed_by_dut_bgp_restart_when_sup_on_tsb_duts_on_tsa
   test_dut_tsb_followed_by_dut_bgp_restart_when_sup_and_duts_on_tsa

3. Miscellaneous tests: Use cases with 'startup-tsa-tsb' service etc. (4 cases)
   test_sup_tsa_when_startup_tsa_tsb_service_running
   test_sup_tsb_when_startup_tsa_tsb_service_running
   test_user_init_tsa_on_dut_followed_by_sup_tsa
   test_user_init_tsa_on_dut_followed_by_sup_tsb

How did you verify/test it?

• Ran all the above-mentioned test cases on a T2 chassis and made sure tests passed with expected behavior.

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

Reliable TSA test result:

Startup-tsa-tsb service test result:

Note: PR #12781 is pending merge, and this PR is dependent on that.

[mssonicbld]

Original PR: #13290

[vperumal]

LGTM. Validated for 202405 on Cisco Chassis

[vperumal]

@abdosi @yejianquan - Can we get this merged to 202405

[yejianquan]

/azp run

[azure-pipelines]

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