fix tests

Author: leotsarev

azure-pipelines.yml

@@ -17,7 +17,7 @@ steps:
 - task: DotNetCoreCLI@2
   inputs:
     command: test
-    projects: '**/*.Tests/*.csproj'
+    projects: '**/*.Test/*.csproj'
     arguments: '--configuration $(buildConfiguration) --logger:trx'
 
 - task: PublishTestResults@2