Code-Coverage made easy with NAnt

I like automating things. And I like to do it fairly quickly. I wanted to automate my unit tests as well as run NCover to get feedback on coverage as soon as possible. Instead of using MSBuild which is in my current environment, I wanted to use something that I was more familiar with -- NAnt.

The NAnt script I whipped up runs my Unit Tests and then NCover. This script also brute force's an organization of the assemblies and their testing counter-parts into a clean structure. It may be be a little excessive -- to create test assemblies for each assembly under test -- but it's ok, I know what's what when first looking at it.

There was a post on this blog earlier about Simplest way to setup unit tests in a project. This script follows that convention.

<project default="code-coverage">
  <property value="C:\Program Files\NCover\ncover.console.exe" name="ncover.executable"/>
  <property value=".\NUnit\nunit-console.exe" name="nunit.console"/>
  <property value=".\NCover\Coverage.xsl" name="ncover.stylesheet"/>
  <property value="C:\ProjectsDirectory" name="projects.output.dir"/>

  <target name="code-coverage">
    <foreach property="test.assembly.folder" item="Folder">
      <in>
      <items>
        <include name="${projects.output.dir}\*Test"/>
        </items>
    </in>
      <do>
         <regex input="${test.assembly.folder}" pattern="^.*(\\/)(?'asmregex'.*)$">
         <property value="${asmregex}" name="assembly.test.name"/>
         <property value="${string::replace(asmregex,'.Test','')}"name="assembly.under.test.name"/>
      <property value="${projects.output.dir}\${assembly.test.name}\bin\Debug\${assembly.test.name}.dll //l Reports\Coverage.Log //a ${assembly.under.test.name}" name="ncover.path.arg"/>
         <exec commandline="${nunit.console} ${ncover.path.arg} " program="${ncover.executable}"/>
      <style style="{ncover.stylesheet}" out="Reports\${assembly.under.test.name}-Coverage.html" in="Coverage.xml$">
    </do>
    </foreach>
  </target>
</project>