SonarQube : nUnit's results are not displayed - jenkins

Question

I'm using SonarQube and Jenkins. In Jenkins, I check the unit tests with nUnit and the coverage with opencover. The opencover's report is displayed in Sonar but the nunit's report is not. The Unit Tests count is not even displayed in the home page of the project.
Here is what I do :
Build my VisualStudio project with MSBuild
Run nunit and opencover with a batch command line
Run SonarQube scanner's analysis
Package the project
The Step 2's command line :
MKDIR "%WORKSPACE%\reports"
MKDIR "%WORKSPACE%\reports-history"
SET COV_PTH="D:\Programmes\opencover.4.5.3522"
SET TOOL_PATH="D:\Programmes\NUnit-2.6.4"
SET RPT_PATH="D:\Programmes\ReportGenerator"
copy src\Foo.Bar.Tests\app.config build\Foo.Bar.Tests.dll.config
%COV_PTH%\OpenCover.Console.exe "-filter:+[Foo.Bar*]* -[Foo.Bar.Tests]* -[Foo.Bar.Service]* -[Foo.Bar.Domain]* -[Foo.Bar.Dal]Foo.Bar.Dal.Dao.* -[Foo.Bar.Controller]Foo.Bar.Controller.*Comparer -[Foo.Bar.Controller]Foo.Bar.Controller.External.*" -register "-target:%TOOL_PATH%\bin\nunit-console.exe" -targetargs:"build\Foo.Bar.Tests.dll /noshadow /result=reports\TestResult.xml" -output:reports\opencovertests.xml
%RPT_PATH%\ReportGenerator.exe "-reports:reports\opencovertests.xml" "-targetdir:reports-ReportGenerator" "-historydir:reports-history"
The Step 3's parameters :
sonar.projectKey=FooBar
sonar.projectName=FooBar
sonar.projectVersion=%SVN_REVISION%
sonar.sources=src/Foo.Bar.Controller, src/Foo.Bar.Dal, src/Foo.Bar.Domain, src/Foo.Bar.Fichier, src/Foo.Bar.Generation, src/Foo.Bar.Reporting, src/Foo.Bar.Service, src/Foo.Bar.Web
sonar.binaries=Build/Foo.Bar.Controller.dll, Build/Foo.Bar.Dal.dll, Build/Foo.Bar.Domain.dll, Build/Foo.Bar.Service.dll, Build/Foo.Bar.Fichier.exe, Build/Foo.Bar.Generation.exe, Build/Foo.Bar.Reporting.exe
sonar.tests=src/Foo.Bar.Tests
sonar.cs.opencover.reportsPaths=reports/opencovertests.xml
sonar.cs.nunit.reportsPaths=reports/TestResult.xml
EDIT
I also tried the following process (same results) :
Prepare SonarQube scanner's analysis
Build my VisualStudio project with MSBuild
Run nunit and opencover with a batch command line
End SonarQube scanner's analysis
Package the project
END EDIT
The nUnit's report is well generated in workspace/reports/TestResult.xml.
I tested the analysis generation by command line and via the sonarqube plugin for jenkins. I got the same results.
Can you see anything wrong?
Is there any SonarQube's logs that I could checked ?
I am using Jenkins 2.10, MSBuild 12, SonarQube 5.6, SonarQube scanner for Jenkins plugin 2.4.3, opencover 4.5 and nunit 2.6.4
EDIT
I updated my config : Jenkins 2.18, MSBuild 14, SonarQube scanner for Jenkins plugin 2.4.4. Same results.
END EDIT

Answer 1

Take a look at: SonarQube documentation: Unit Test Execution Results Import (C#, VB.NET)
It says:
Drilldown on Test Execution Results is not supported
My understanding is that you can only see the results (number of Tests passing, errors, etc) but not detail from the tests.
You also ask about Logs. You have:
Jenkins Job log
SonarQube Background tasks: Login as Admin -> Administration -> Projects -> Background tasks -> far right of each execution ---> http://docs.sonarqube.org/display/SONAR/Background+Tasks
SonarQube logs: sonar_install_directory\logs