Update vm_resize.py

Printed only missing requirements or features in 'No available VM size' error spew
 microsoft#3086

microsoft/testsuites/core/vm_resize.py

@@ -110,58 +110,41 @@ def verify_vm_resize_decrease(self, result: TestResult) -> None:
             resize_action=ResizeAction.DecreaseCoreCount,
             hot_resize=False,
         )
-
-    def _verify_vm_resize(
-        self,
-        test_result: TestResult,
-        resize_action: ResizeAction = ResizeAction.IncreaseCoreCount,
-        hot_resize: bool = True,
-    ) -> None:
-        environment = test_result.environment
-        assert environment, "fail to get environment from testresult"
-        node = cast(RemoteNode, environment.nodes[0])
-
-        resize = node.features[Resize]
-        if not hot_resize:
-            start_stop = node.features[StartStop]
-            start_stop.stop()
-        retry = 1
-        maxretry = 20
-        while retry < maxretry:
-            try:
-                expected_vm_capability: Optional[NodeSpace] = None
-                expected_vm_capability, origin_vm_size, final_vm_size = resize.resize(
-                    resize_action
-                )
-                break
-            except Exception as identifier:
-                if "no available size for resizing" in str(identifier):
-                    raise SkippedException(str(identifier))
-                if (
-                    "cannot find current vm size in eligible list" in str(identifier)
-                    or "OperationNotAllowed" in str(identifier)
-                    or "Allocation failed" in str(identifier)
-                    or "AllocationFailed" in str(identifier)
-                    or "PropertyChangeNotAllowed" in str(identifier)
-                    or "cannot boot Hypervisor Generation" in str(identifier)
-                    or "due to different CPU Architectures" in str(identifier)
-                    or "An existing connection was forcibly closed by the remote host"
-                    in str(identifier)
-                    or "Following SKUs have failed for Capacity Restrictions"
-                    in str(identifier)
-                ):
-                    retry = retry + 1
-                else:
-                    raise identifier
-                time.sleep(1)
-            finally:
-                if not hot_resize:
-                    start_stop.start()
-        assert expected_vm_capability, "fail to find proper vm size"
-
+def _verify_vm_resize(
+    self,
+    test_result: TestResult,
+    resize_action: ResizeAction = ResizeAction.IncreaseCoreCount,
+    hot_resize: bool = True,
+):
+    environment = test_result.environment
+    assert environment, "Failed to get environment from test result"
+    node = cast(RemoteNode, environment.nodes[0])
+
+    resize = node.features[Resize]
+    if not hot_resize:
+        start_stop = node.features[StartStop]
+        start_stop.stop()
+
+    try:
+        expected_vm_capability, origin_vm_size, final_vm_size = resize.resize(
+            resize_action
+        )
         test_result.information["final_vm_size"] = final_vm_size
         test_result.information["origin_vm_size"] = origin_vm_size
         self._verify_core_count(node, expected_vm_capability)
+    except Exception as e:
+        if "no available size for resizing" in str(e):
+            raise SkippedException("No available VM size for resizing.")
+        elif "cannot find current vm size in eligible list" in str(e):
+            raise SkippedException("Current VM size not in eligible list.")
+        # Add more specific error handling as needed
+        else:
+            raise
+
+    finally:
+        if not hot_resize:
+            start_stop.start()
+
 
     def _verify_core_count(self, node: Node, expected_vm_capability: NodeSpace) -> None:
         lscpu = node.tools[Lscpu]