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  <!-- Xunit Build task-->
  <PropertyGroup>
    <XunitBuildTaskPath>$(ProgramFiles)\MSBuild\Xunit\</XunitBuildTaskPath>
  </PropertyGroup>

  <UsingTask AssemblyFile="$(XunitBuildTaskPath)\xunit.runner.msbuild.dll"
    TaskName="Xunit.Runner.MSBuild.xunit"/>

  <Target Name="AfterCompile">
    <!-- Create a Custom Build Step -->
    <BuildStep TeamFoundationServerUrl="$(TeamFoundationServerUrl)" BuildUri="$(BuildUri)" Name="XUnitTestStep" Message="Running Xunit Tests">
      <Output TaskParameter="Id" PropertyName="XUnitStepId" />
    </BuildStep>

    <CreateItem Include="$(OutDir)\*.Test.dll">
      <Output TaskParameter="Include" ItemName="TestAssemblies"/>
    </CreateItem>

    <!-- Run the tests -->
    <xunit ContinueOnError="true" Assembly="@(TestAssemblies)" NUnitXml="$(OutDir)nunit_results.xml">
      <Output TaskParameter="ExitCode" PropertyName="XUnitResult" />
    </xunit>

    <!-- Set the status of the buildstep in the build overview -->
    <BuildStep Condition="'$(XUnitResult)'=='0'" TeamFoundationServerUrl="$(TeamFoundationServerUrl)" BuildUri="$(BuildUri)" Id="$(XUnitStepId)" Status="Succeeded" />
    <BuildStep Condition="'$(XUnitResult)'!='0'" TeamFoundationServerUrl="$(TeamFoundationServerUrl)" BuildUri="$(BuildUri)" Id="$(XUnitStepId)" Status="Failed" />

    <!-- Regardless of NUnit success/failure merge results into the build -->
    <Exec Command="&quot;$(XunitBuildTaskPath)\nxslt3.exe&quot; &quot;$(OutDir)nunit_results.xml&quot; &quot;$(XunitBuildTaskPath)\nunit transform.xslt&quot; -o &quot;$(OutDir)xunit_results.trx&quot;"/>
    <Exec Command="&quot;$(ProgramFiles)\Microsoft Visual Studio 9.0\Common7\IDE\mstest.exe&quot; /publish:$(TeamFoundationServerUrl) /publishbuild:&quot;$(BuildNumber)&quot; /publishresultsfile:&quot;$(OutDir)xunit_results.trx&quot; /teamproject:&quot;$(TeamProject)&quot; /platform:&quot;%(ConfigurationToBuild.PlatformToBuild)&quot; /flavor:&quot;%(ConfigurationToBuild.FlavorToBuild)&quot;"/>
    
    <Error Condition="'$(XUnitResult)'!='0'" Text="XUnit Tests Failed" />
  </Target>

        [Output]
        public int ExitCode { get; private set; }

        public override bool Execute()
        {
            try
            {
                string assemblyFilename = Assembly.GetMetadata("FullPath");

                if (WorkingFolder != null)
                    Directory.SetCurrentDirectory(WorkingFolder);

                using (ExecutorWrapper wrapper = new ExecutorWrapper(assemblyFilename, ConfigFile, ShadowCopy))
                {
                    Log.LogMessage(MessageImportance.High, "xUnit.net MSBuild runner (xunit.dll version {0})", wrapper.XunitVersion);
                    Log.LogMessage(MessageImportance.High, "Test assembly: {0}", assemblyFilename);

                    IRunnerLogger logger =
                        TeamCity ? (IRunnerLogger)new TeamCityLogger(Log) :
                        Verbose ? new VerboseLogger(Log) :
                        new StandardLogger(Log);

                    List<IResultXmlTransform> transforms = new List<IResultXmlTransform>();

                    using (Stream htmlStream = ResourceStream("HTML.xslt"))
                    using (Stream nunitStream = ResourceStream("NUnitXml.xslt"))
                    {
                        if (Xml != null)
                            transforms.Add(new NullTransformer(Xml.GetMetadata("FullPath")));
                        if (Html != null)
                            transforms.Add(new XslStreamTransformer(htmlStream, Html.GetMetadata("FullPath"), "HTML"));
                        if (NUnitXml != null)
                            transforms.Add(new XslStreamTransformer(nunitStream, NUnitXml.GetMetadata("FullPath"), "NUnit XML"));

                        TestRunner runner = new TestRunner(wrapper, logger);
                        if(runner.RunAssembly(transforms) == TestRunnerResult.Failed)
                        {
                            ExitCode = -1;
                            return false;   
                        }

                        ExitCode = 0;
                        return true;
                    }
                }
            }
            catch (Exception ex)
            {
                Exception e = ex;

                while (e != null)
                {
                    Log.LogError(e.GetType().FullName + ": " + e.Message);

                    foreach (string stackLine in e.StackTrace.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries))
                        Log.LogError(stackLine);

                    e = e.InnerException;
                }

                ExitCode = -1;

                return false;
            }
        }