To use code coverage in visual studio 2013 premium edition, configuring unit tests by using a .runsettings File. To configure file create a xml file and write some code as follows for configuration
<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
<!-- Configurations that affect the Test Framework -->
<RunConfiguration>
<!-- Path relative to solution directory -->
<ResultsDirectory>.\TestResults</ResultsDirectory>
<!-- [x86] | x64
- You can also change it from menu Test, Test Settings, Default Processor Architecture -->
<TargetPlatform>x86</TargetPlatform>
<!-- Framework35 | [Framework40] | Framework45 -->
<TargetFrameworkVersion>Framework40</TargetFrameworkVersion>
</RunConfiguration>
<!-- Configurations for data collectors -->
<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>
<Exclude>
<ModulePath>.*TestSetupFramework.*</ModulePath>
</Exclude>
</ModulePaths>
</CodeCoverage>
</Configuration>
</DataCollector>
</DataCollectors>
</DataCollectionRunSettings>
<!-- Parameters used by tests at runtime -->
<TestRunParameters>
<Parameter name="webAppUrl" value="http://localhost" />
<Parameter name="webAppUserName" value="Username" />
<Parameter name="webAppPassword" value="Password" />
</TestRunParameters>
<!-- Adapter Specific sections -->
<!-- MSTest adapter -->
<MSTest>
<MapInconclusiveToFailed>True</MapInconclusiveToFailed>
<CaptureTraceOutput>false</CaptureTraceOutput>
<DeleteDeploymentDirectoryAfterTestRunIsComplete>False</DeleteDeploymentDirectoryAfterTestRunIsComplete>
<DeploymentEnabled>False</DeploymentEnabled>
</MSTest>
</RunSettings>
Refer this xml file at Test menu-> Test Settings->Select Test Settings File.