unit tests use linux pool

Author: Victoria Hall

eng/templates/jobs/build.yml

@@ -4,8 +4,8 @@ jobs:
 
     pool:
       name: 1es-pool-azfunc-public
-      image: 1es-windows-2022
-      os: windows
+      image: 1es-ubuntu-22.04
+      os: linux
 
     steps:
       - task: UsePythonVersion@0

eng/templates/jobs/ci-unit-tests.yml

@@ -3,7 +3,6 @@ jobs:
     displayName: "Run Python Unit Tests"
 
     strategy:
-      maxParallel: 1
       matrix:
         Python37:
           PYTHON_VERSION: '3.7'

tests/unittests/test_logging.py

@@ -56,5 +56,9 @@ def raising_function():
             self.assertIn("call1", processed_exception)
             self.assertIn("call2", processed_exception)
             self.assertIn("f", processed_exception)
-            self.assertIn("tests/unittests/test_logging.py",
-                          processed_exception)
+            file_path_present = False
+            for line in processed_exception:
+                if "tests/unittests/test_logging.py" in line:
+                    file_path_present = True
+                    break
+            self.assertTrue(file_path_present)