Fix iscsi authentication failed issue

[meinaLi]

virtual_disks_snapshot_blockpull.py: the variants auth_backend_test should be tested with iscsi network disk but not block disk. Than means the previous test was invalid. virtual_disks_luks.py: for iscsi_test.enable_auth test, the previous test was also invalid because the iscsi auth was not used in code.

Signed-off-by: Meina Li [email protected]

[meinaLi]

# avocado run --vt-type libvirt --test-runner=runner --vt-machine-type q35 virtual_disks.snapshot_blockpull..auth_backend_test
JOB ID     : 1b7f1d0872aabec924cbb3a193ec0b0e42006987
JOB LOG    : /var/lib/avocado/job-results/job-2022-11-11T06.59-1b7f1d0/job.log
 (1/1) type_specific.io-github-autotest-libvirt.virtual_disks.snapshot_blockpull.positive_test.auth_backend_test.native_path.middle_to_top_to_base: PASS (471.04 s)
RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB HTML   : /var/lib/avocado/job-results/job-2022-11-11T06.59-1b7f1d0/results.html
JOB TIME   : 473.02 s
# avocado run --vt-type libvirt --test-runner=runner --vt-machine-type q35 virtual_disks.luks..iscsi_test.enable_auth
JOB ID     : 9280173acb99f2b3891dbea2e1f93c8dd01545a0
JOB LOG    : /var/lib/avocado/job-results/job-2022-11-11T07.51-9280173/job.log
 (01/32) type_specific.io-github-autotest-libvirt.virtual_disks.luks.positive_test.coldplug.device_disk.iscsi_test.enable_auth.auth_in_source.use_auth_uuid.encryption_in_source: PASS (113.38 s)
 (02/32) type_specific.io-github-autotest-libvirt.virtual_disks.luks.positive_test.coldplug.device_disk.iscsi_test.enable_auth.auth_in_source.use_auth_uuid.encryption_out_source: PASS (114.96 s)
 (03/32) type_specific.io-github-autotest-libvirt.virtual_disks.luks.positive_test.coldplug.device_disk.iscsi_test.enable_auth.auth_in_source.use_auth_usage.encryption_in_source:  PASS (111.80 s)
 (31/32) type_specific.io-github-autotest-libvirt.virtual_disks.luks.negative_test.wrong_password.hotplug.device_disk.iscsi_test.enable_auth.auth_out_source.use_auth_usage.encryption_in_source: PASS (108.48 s)
 (32/32) type_specific.io-github-autotest-libvirt.virtual_disks.luks.negative_test.wrong_password.hotplug.device_disk.iscsi_test.enable_auth.auth_out_source.use_auth_usage.encryption_out_source: PASS (105.45 s)
RESULTS    : PASS 32 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB HTML   : /var/lib/avocado/job-results/job-2022-11-11T07.51-9280173/results.html
JOB TIME   : 3263.32 s

[meinaLi]

Depend on https://github.com/avocado-framework/avocado-vt/pull/3561

[chunfuwen]

@meinaLi Have you already run those cases in jenkins job ? if yes, please upload test result as well @dzhengfy , please check whether you can approve this PR now.

[meinaLi]

From https://github.com/avocado-framework/avocado-vt/pull/3588 we can know, this adjustment will not affect another auto test. So I'll close this PR.