I've run into a recurring problem with a few different projects using MSTest in VS2012, where every now and then my code coverage stops working (seemingly at random) and instead gives me:
Empty results generated: No binaries were instrumented. Make sure the tests ran, required binaries were loaded, had matching symbol files, and were not excluded through custom settings. For more information see http://go.microsoft.com/fwlink/?LinkID=253731
I've checked the obvious (what it's suggested) but can't seem to figure out what is causing it.
Here is my runsettings file:
<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
<DataCollectionRunSettings>
<DataCollectors>
<DataCollector friendlyName="Code Coverage"
uri="datacollector://Microsoft/CodeCoverage/2.0"
assemblyQualifiedName=" Microsoft.VisualStudio.Coverage.DynamicCoverageDataCollector,
Microsoft.VisualStudio.TraceCollector,
Version=11.0.0.0,
Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a">
<Configuration>
<CodeCoverage>
<ModulePaths>
<Include>
<ModulePath>.*\.dll$</ModulePath>
</Include>
<Exclude>
<ModulePath>.*\.tests.dll</ModulePath>
</Exclude>
</ModulePaths>
<Attributes>
<Exclude>
<Attribute>.*ExcludeFromCodeCoverageAttribute$</Attribute>
<Attribute>.*GeneratedCodeAttribute$</Attribute>
</Exclude>
</Attributes>
<UseVerifiableInstrumentation>True</UseVerifiableInstrumentation>
<AllowLowIntegrityProcesses>True</AllowLowIntegrityProcesses>
<CollectFromChildProcesses>True</CollectFromChildProcesses>
<CollectAspDotNet>False</CollectAspDotNet>
</CodeCoverage>
</Configuration>
</DataCollector>
</DataCollectors>
</DataCollectionRunSettings>
</RunSettings>
I just ran into this using Visual Studio 2019. The solution was to go to the "Test" menu item in VS and then update the Test -> Processor Architecture for AnyCPU Projects setting from X86 to X64.