A MsBuild inline task that checks if a Sherlock test has passed or failed by parsing the XML test report.

Sherlock.HasTestPassed.xml

<Project xmlns='http://schemas.microsoft.com/developer/msbuild/2003' 
         ToolsVersion="4.0">
    <UsingTask TaskName="SherlockHasTestPassed" 
               TaskFactory="CodeTaskFactory" 
               AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
        <ParameterGroup>
            <ReportFile ParameterType="System.String" Required="true" />
        </ParameterGroup>
        <Task>
            <Reference Include="System.Xml" />
            <Reference Include="System.Xml.Linq" />
            <Code Type="Method" Language="cs">
                <![CDATA[
                    public override bool Execute()
                    {
                        /* 
                            sherlock.report.xml
                            Sherlock 0.4.5.0:
                                XML report also dumped in the specific directory
                                XML report contains section indicating Passed or Failed under: sherlockreport -> header -> result
                        */
                        Log.LogMessage(MessageImportance.Normal, "Parsing " + ReportFile); 
                        
                        var xDoc = System.Xml.Linq.XDocument.Load(ReportFile);
                        var node = xDoc.Element("sherlockreport").Element("header").Element("result");
                        var text = node.Value.Trim();
                        
                        if (string.Equals("Failed", text, System.StringComparison.OrdinalIgnoreCase))
                        {
                            Log.LogError("Test failed"); 
                        }
                        else
                        {
                            Log.LogMessage(MessageImportance.High, "Test passed"); 
                        }
                        
                        // Log.HasLoggedErrors is true if the task logged any errors -- even if they were logged 
                        // from a task's constructor or property setter. As long as this task is written to always log an error
                        // when it fails, we can reliably return HasLoggedErrors.
                        return !Log.HasLoggedErrors;
                    }
                ]]>  
            </Code>
        </Task>
    </UsingTask>
</Project>