Reorganized test setup to avoid repeated authentication during tests.

devops.py

@@ -1,6 +1,7 @@
 import requests
 import urllib.parse
 from uuid import UUID
+from azure.identity import DefaultAzureCredential
 
 DEVOPS_SCOPE = "https://app.vssps.visualstudio.com/.default"
 DEVOPS_API_VERSION = "7.1"
@@ -105,7 +106,9 @@ class DevOps():
         return entities_list
 
 class Organization(DevOps):
-    def __init__(self, org_url: str, token: str, api_version: str = DEVOPS_API_VERSION):
+    def __init__(self, org_url: str, token: str | None = None, api_version: str = DEVOPS_API_VERSION):
+        if token is None:
+            token = DefaultAzureCredential().get_token(DEVOPS_SCOPE).token
         super().__init__(org_url, token, api_version)
 
     @property

tests.py

@@ -1,15 +1,14 @@
 #!/usr/bin/env python3
 import unittest
-from devops import DEVOPS_SCOPE, Organization, Repository, Project, Item
-from azure.identity import DefaultAzureCredential
+from devops import Organization, Repository, Project, Item
 
-# Example: set up your org here if possible, or mock as needed
-# org = Organization("https://dev.azure.com/mcovsandbox", DefaultAzureCredential().get_token(DEVOPS_SCOPE).token)
+# Setup the Organization object outside the test class to speed up tests.
+# Each Unit test instantinates the class, so doing it here avoids repeated authentication.
+org = Organization("https://dev.azure.com/mcovsandbox")
 
 class TestDevOps(unittest.TestCase):
     def setUp(self):
-        # Set up your Organization object here if possible
-        self.org = Organization("https://dev.azure.com/mcovsandbox", DefaultAzureCredential().get_token(DEVOPS_SCOPE).token)
+        self.org = org
 
     def test_listing_projects_in_organization(self):
         org = self.org