[Enabler][1832]Set_dynamic_volumes_for_volume_init (#2030)

* Fix dynamic volume init

* Add fragment

* Fix error for other test suites

* Fix comments and avoid circular

* Test with volume 7

* Update test_zos_volume_init_func.py

* Return dynamic volume

* Add validation of test cases

* Try to order volumes

* Try to order

* Try to order

* Try to order

* Try to order

* Try to order

* Update volumes.py

* Debug copy

* Debug copy

* Debug copy

* Use only valid volumes

* Ensure order from least to most

* Add comment and make easy way to get volumes

Author: AndreMarcel99

changelogs/fragments/2030-Set_dynamic_volumes_for_volume_init.yml

@@ -0,0 +1,3 @@
+trivial:
+  - test_zos_volume_init.py - Adds support dynamic volumes and allocations for testing.
+    (https://github.com/ansible-collections/ibm_zos_core/pull/2030).

tests/conftest.py

@@ -14,7 +14,7 @@
 __metaclass__ = type
 import pytest
 from ibm_zos_core.tests.helpers.ztest import ZTestHelper
-from ibm_zos_core.tests.helpers.volumes import get_volumes, get_volumes_with_vvds
+from ibm_zos_core.tests.helpers.volumes import get_volumes, get_volumes_with_vvds, get_volume_and_unit
 from ansible.plugins.action import ActionBase
 import sys
 from mock import MagicMock
@@ -158,6 +158,20 @@ def volumes_with_vvds(ansible_zos_module, request):
     yield volumes_with_vvds
 
 
+@pytest.fixture(scope="session")
+def volumes_unit_on_systems(ansible_zos_module, request):
+    """ Call the pytest-ansible plugin to check volumes on the system and work properly a list by session."""
+    path = request.config.getoption("--zinventory")
+    list_volumes = None
+
+    if path is None:
+        src = request.config.getoption("--zinventory-raw")
+        helper = ZTestHelper.from_args(src)
+        list_volumes = helper.get_volume_and_unit()
+    else:
+        list_volumes = get_volume_and_unit(ansible_zos_module, path)
+
+    yield list_volumes
 
 # * We no longer edit sys.modules directly to add zoautil_py mock
 # * because automatic teardown is not performed, leading to mock pollution