diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 9c61605..c6fc8f9 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -29,6 +29,6 @@ jobs:
       env:
         OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
         AZURE_OPENAI_API_KEY: ${{ secrets.AZURE_OPENAI_API_KEY }}
-        AZURE_OPENAI_ENDPOINT_URL: ${{ env.AZURE_OPENAI_ENDPOINT_URL }}
-        AZURE_OPENAI_DEPLOYMENT_NAME: ${{ env.AZURE_OPENAI_DEPLOYMENT_NAME }}
+        AZURE_OPENAI_ENDPOINT_URL: ${{ vars.AZURE_OPENAI_ENDPOINT_URL }}
+        AZURE_OPENAI_DEPLOYMENT_NAME: ${{ vars.AZURE_OPENAI_DEPLOYMENT_NAME }}
       run: dotnet test --no-build --verbosity normal
diff --git a/.github/workflows/publish_to_nuget.yml b/.github/workflows/publish_to_nuget.yml
index 56e295f..b8c998e 100644
--- a/.github/workflows/publish_to_nuget.yml
+++ b/.github/workflows/publish_to_nuget.yml
@@ -26,8 +26,8 @@ jobs:
       env:
         OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
         AZURE_OPENAI_API_KEY: ${{ secrets.AZURE_OPENAI_API_KEY }}
-        AZURE_OPENAI_ENDPOINT_URL: ${{ env.AZURE_OPENAI_ENDPOINT_URL }}
-        AZURE_OPENAI_DEPLOYMENT_NAME: ${{ env.AZURE_OPENAI_DEPLOYMENT_NAME }}
+        AZURE_OPENAI_ENDPOINT_URL: ${{ vars.AZURE_OPENAI_ENDPOINT_URL }}
+        AZURE_OPENAI_DEPLOYMENT_NAME: ${{ vars.AZURE_OPENAI_DEPLOYMENT_NAME }}
       run: dotnet test --no-build --verbosity normal
       
     - name: Find NuGet packages
diff --git a/tests/OpenAI.Tests.Shared/Helpers.cs b/tests/OpenAI.Tests.Shared/Helpers.cs
index cd3aec4..d088bc1 100644
--- a/tests/OpenAI.Tests.Shared/Helpers.cs
+++ b/tests/OpenAI.Tests.Shared/Helpers.cs
@@ -25,7 +25,7 @@ public static string GetValueFromConfiguration(string key)
         {
             ArgumentNullException.ThrowIfNull(key);
             var value = Configuration[key];
-            if (value is null)
+            if (value is null or { Length: 0 })
             {
                 throw new InvalidOperationException($"{key} is not set in configuration");
             }