Updates to dotnet example automation for recent changes on dotnet side (#9359)

* fix in new cases and update tests in new cases

* remove useless pieces

* update code

* fix test cases

* fix typo

tools/azure-rest-api-specs-examples-automation/dotnet/main.py

@@ -98,7 +98,10 @@ def get_dotnet_using_statements(lines: List[str]) -> List[str]:
         "using Azure.ResourceManager;\n",
     ]
     for line in lines:
-        if line.startswith("using "):
+        if line.startswith("using NUnit."):
+            # ignore the NUnit namespaces if any
+            pass
+        elif line.startswith("using "):
             lines_using_statements.append(line)
         elif line.startswith("namespace "):
             # remove the prefix first

tools/azure-rest-api-specs-examples-automation/dotnet/test_main.py

@@ -1,8 +1,13 @@
 import unittest
 import parameterized
 from main import break_down_aggregated_dotnet_example, format_dotnet, get_dotnet_using_statements
+from typing import List
 
-file_content = """// Copyright (c) Microsoft Corporation. All rights reserved.
+class TestMain(unittest.TestCase):
+    @parameterized.parameterized.expand(
+        [
+            (
+                """// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 // <auto-generated/>
@@ -20,14 +25,15 @@ using Azure.ResourceManager.ContainerInstance;
 using Azure.ResourceManager.ContainerInstance.Models;
 using Azure.ResourceManager.Models;
 using Azure.ResourceManager.Resources;
+using NUnit.Framework;
 
 namespace Azure.ResourceManager.ContainerInstance.Samples
 {
     public partial class Sample_ContainerGroupCollection
     {
         // ContainerGroupsListByResourceGroup
-        [NUnit.Framework.Test]
+        [Test]
-        [NUnit.Framework.Ignore("Only verifying that the sample builds")]
+        [Ignore("Only verifying that the sample builds")]
         public async Task GetAll_ContainerGroupsListByResourceGroup()
         {
             // Generated from example definition: specification/containerinstance/resource-manager/Microsoft.ContainerInstance/stable/2021-10-01/examples/ContainerGroupsListByResourceGroup.json
@@ -324,10 +330,10 @@ new ContainerGroupSubnetId(new ResourceIdentifier("[resourceId('Microsoft.Networ
     }
 }
 """
-
+            )
-
+        ]
-class TestMain(unittest.TestCase):
+    )
-    def test_break_down_aggregated_dotnet_example(self):
+    def test_break_down_aggregated_dotnet_example(self, file_content: str):
         lines = file_content.splitlines(keepends=True)
         examples = break_down_aggregated_dotnet_example(lines)
         self.assertIsNotNone(examples.class_opening)
@@ -356,18 +362,28 @@ using Azure.Identity;
 using Azure.ResourceManager.Compute.Models;
 using Azure.ResourceManager.Resources;
 using Azure.ResourceManager.Resources.Models;
+using NUnit.Framework;
 
 namespace Azure.ResourceManager.Compute.Samples
 {
-}"""
+}""",
+                [
+                    "using System;\n",
+                    "using System.Threading.Tasks;\n",
+                    "using Azure;\n",
+                    "using Azure.Core;\n",
+                    "using Azure.Identity;\n",
+                    "using Azure.ResourceManager;\n",
+                    "using Azure.ResourceManager.Compute;\n",
+                    "using Azure.ResourceManager.Compute.Models;\n",
+                    "using Azure.ResourceManager.Resources;\n",
+                    "using Azure.ResourceManager.Resources.Models;\n",
+                ]
             )
         ]
     )
-    def test_example_usings(self, content: str):
+    def test_example_usings(self, content: str, expected_usings: List[str]):
         lines = content.splitlines(keepends=True)
         usings = get_dotnet_using_statements(lines)
         
-        self.assertIn("using Azure;\n", usings)
+        self.assertSetEqual(set(expected_usings), set(usings))
-        self.assertIn("using Azure.Core;\n", usings)
-        self.assertIn("using Azure.ResourceManager;\n", usings)
-        self.assertIn("using Azure.ResourceManager.Compute;\n", usings)