storage/linstor: add test for VDI resize support

Implemented `test_resize_vdi` in LINSTOR, verifying VDI resize
functionality and ensuring VM boot post-resize.

Co-authored-by: Alexandre Sollier <alexandre.sollier@vates.tech>
Signed-off-by: Rushikesh Jadhav <rushikesh7@gmail.com>
Signed-off-by: Alexandre Sollier <alexandre.sollier@vates.tech>

Author: rushikeshjadhav

tests/storage/linstor/conftest.py

@@ -118,14 +118,14 @@ def pool_with_linstor(
     import concurrent.futures
     pool = pool_with_saved_yum_state
 
-    def check_linstor_installed(host: Host) -> None:
+    def ensure_linstor_not_installed(host: Host) -> None:
         if host.is_package_installed(LINSTOR_PACKAGE):
             raise Exception(
                 f'{LINSTOR_PACKAGE} is already installed on host {host}. This should not be the case.'
             )
 
     with concurrent.futures.ThreadPoolExecutor() as executor:
-        executor.map(check_linstor_installed, pool.hosts)
+        executor.map(ensure_linstor_not_installed, pool.hosts)
 
     def install_linstor(host: Host) -> None:
         logging.info(f"Installing {LINSTOR_PACKAGE} on host {host}...")

tests/storage/linstor/test_linstor_sr.py

@@ -189,6 +189,23 @@ def test_resynchronization(
         finally:
             vm.shutdown(verify=True)
 
+    @pytest.mark.small_vm
+    @pytest.mark.big_vm
+    def test_resize_vdi(self, vm_on_linstor_sr: VM) -> None:
+        vm = vm_on_linstor_sr
+        if vm.is_running():
+            vm.shutdown(verify=True)
+
+        for vdi in vm.vdis:
+            size = vdi.get_virtual_size()
+            vdi.resize(size * 2)
+            assert vdi.get_virtual_size() == size * 2
+
+        # Make sure the VM still starts up successfully after resizing
+        vm.start()
+        vm.wait_for_os_booted()
+        vm.shutdown(verify=True)
+
     # *** tests with reboots (longer tests).
 
     @pytest.mark.reboot