diff --git a/HISTORY.md b/HISTORY.md
index b35b669..bd50007 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -3,6 +3,8 @@
 ## 0.10.19_preview / 2025-10-23
 
 - Fixed issue where event type property Uom and description fields are swapped
+- Fixed failing tests 
+- Updated requirements for tests
 
 ## 0.10.18_preview / 2025-07-30
 
diff --git a/adh_sample_library_preview/Tests/test_baseclient.py b/adh_sample_library_preview/Tests/test_baseclient.py
index 636f4e8..d8e1c5b 100644
--- a/adh_sample_library_preview/Tests/test_baseclient.py
+++ b/adh_sample_library_preview/Tests/test_baseclient.py
@@ -34,11 +34,11 @@ def test_check_response_error_response(baseClient):
 
 def test_validate_parameters_raises_error(baseClient):
     with pytest.raises(TypeError):
-        baseClient.validateParameters('good', 'gooder', None)
+        baseClient.validateRequiredParameters('good', 'gooder', None)
 
     with pytest.raises(TypeError):
-        baseClient.validateParameters('good', 'gooder', [])
+        baseClient.validateRequiredParameters('good', 'gooder', [])
 
 
 def test_validate_parameters_valid(baseClient):
-    baseClient.validateParameters('good', 'gooder', 'goodest')
\ No newline at end of file
+    baseClient.validateRequiredParameters('good', 'gooder', 'goodest')
\ No newline at end of file
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 8c027e2..5b66de4 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -45,10 +45,12 @@ jobs:
       buildSteps:
         - script: |
             echo Install tools
-            call pip install wheel
-            call pip install twine
+            pip install wheel
+            pip install twine
             echo Build library
-            call python setup.py sdist bdist_wheel
+            python setup.py sdist bdist_wheel
+            echo Install library
+            pip install .
             echo Complete
           displayName: 'Build'
 
@@ -63,10 +65,8 @@ jobs:
           secrets: 'TenantId, NamespaceId, ClientId, ClientSecret, Resource'
 
       - script: |
-          echo Install test tools  
-          pip install pytest
-          echo Install requirements
-          pip install -r requirements.txt
+          echo Install requirements for tests
+          pip install ".[test]"
           echo Run tests
           cd ./adh_sample_library_preview/Tests
           python -m pytest --junitxml=junit/test-results-baseclient.xml test_baseclient.py --e2e True
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 945c9b4..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-.
\ No newline at end of file
diff --git a/setup.py b/setup.py
index cf35deb..5de45b8 100644
--- a/setup.py
+++ b/setup.py
@@ -19,9 +19,11 @@
         'python-dateutil>=2.8.2',
         'jsonpatch>=1.32'
     ],
-    tests_require = [
-        'pytest>=7.0.1',
-    ],
+    extras_require={
+        'test': [
+            'pytest>=7.0.1',
+        ]
+    },
     python_requires='>=3.7',
     classifiers=[
         'Programming Language :: Python :: 3',