title: Sonar server is showing Unit test coverage empty although i am using open cover
body: <p>I am new to sonar and trying to use Sonar for code analysis including code coverage, unit test report etc. I am able to generate a report using OpenCover, i am using C#. My project is part of a jenkins job which build the soluton, run script for Opencover and then connect to sonar using 'Execute sonarQube scanner'. I am able to view result as line of code smell, issues in sonar. But unit test section is showing 0 in all parts (Failures, errors, tests). Below are my sonar setting in sonar-project.properties.</p>
  
  <pre><code>sonar.projectKey=TestCI
  sonar.projectVersion=1.0
  sonar.projectName=TestCI
  sonar.sources=.
  sonar.language=cs
  sonar.cs.vstest.reportsPaths="%WORKSPACE%\AutoBuildTest\Results.trx"
  sonar.dotnet.visualstudio.solution.file="%Workspace%\TestCI.sln"
  sonar.cs.msbuild.testProjectPattern=*Tests;*UnitTests
  sonar.cs.opencover.reportPaths="%WORKSPACE%\GeneratedReports\TestCI.xml"
  sonar.cs.vscoveragexml.reportsPaths="%WORKSPACE%\GeneratedReports\TestCI.xml"
  </code></pre>
  
  <p>Please help.</p>