[auto-ts] Updated regex in test_auto_techsupport

[AndriiLozovyi]

Signed-off-by: Andrii-Yosafat Lozovyi andrii-yosafatx.lozovyi@intel.com

Description of PR

Summary:
In PR - 10433 were added changes that add automatic techsupport invocation in case memory usage is too high. After this PR output of Cli cmd's (show auto-techsupport global, show auto-techsupport-feature, show auto-techsupport history) changed and TC's are failing to parse the output on SONiC images SONiC.master.112803-dirty-20220621.160636 or higher .

     if since:
            with allure.step('Checking global since'):
>               assert str(current_since) == str(since), \
                    'Wrong configuration for since: {} expected: {}'.format(current_since, since)
E               AssertionError: Wrong configuration for since: 10                             200                       2 days ago expected: 2 days ago
E               assert '10          ...   2 days ago' == '2 days ago'
E                 - 10                             200                       2 days ago
E                 + 2 days ago

This PR updates the regex to properly parse the output in both cases (when TC will run on Sonic image that doesn't include changes in 10433 or in case when Sonic image have this changes SONiC.master.112803-dirty-20220621.160636 or higher)

Fixes # (issue)

Type of change

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

Back port request

• 201911
• 202012

Approach

What is the motivation for this PR?

Update the regex to properly parse the output of cli cmd's on newer SONiC images

How did you do it?

How did you verify/test it?

Run TC on Sonic image SONiC.master.112803-dirty-20220621.160636 and SONiC.master.105614-dirty-20220602.215204

Any platform specific information?

SONiC Software Version: SONiC.master.117621-dirty-20220703.113429
Distribution: Debian 11.3
Kernel: 5.10.0-12-2-amd64
Build commit: 23d68883f
Build date: Sun Jul  3 16:43:57 UTC 2022
Built by: AzDevOps@sonic-build-workers-001PX8
Platform: x86_64-arista_7170_64c
HwSKU: Arista-7170-64C

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

Documentation

[AndriiLozovyi]

@ZhaohuiS Could you please take a look?

[ZhaohuiS]

@AndriiLozovyi If the command is changed again, we have to rewrite this function one more time. Could you please check if it's possible to call show_and_parse, doc is here

[AndriiLozovyi]

@ZhaohuiS
Good suggestion, reworked to use show_and_parse instead of regex

[lgtm-com]

This pull request introduces 1 alert when merging 26135fa into f7bde1e - view on LGTM.com

new alerts:

• 1 for Unused import