private def generateModuleName()

in ideaSupport/src/main/scala/org/jetbrains/sbtidea/tasks/IdeaConfigBuilder.scala [230:280]
40 lines of code
3 McCabe index (conditional complexity)

  private def generateModuleName(sourceSetModuleSuffix: String): String =
    if (hasProdTestSeparationEnabled) s"$projectName.$sourceSetModuleSuffix"
    else projectName

  private def buildJUnitTemplate: String = {
    val env = createEnvironmentVariablesSection(options.ideaTestEnv)
    val vmOptionsStr = buildTestVmOptionsString

    val argFilePath = runConfigDir / "junit_template_argfile.txt"
    writeToFile(argFilePath, vmOptionsStr)

    val vmOptionsStrArgfile = s"@${argFilePath.getAbsolutePath}"

    val moduleName = generateModuleName(sourceSetModuleSuffix = "test")

    val searchScope = if (options.testSearchScope.nonEmpty)
      s"""<option name="TEST_SEARCH_SCOPE">
         |      <value defaultName="${options.testSearchScope}" />
         |    </option>""".stripMargin
    else ""

    // The VM_PARAMETERS option must contain a fake -cp option (with an empty string as a classpath),
    // otherwise the platform will enforce the module classpath on our tests
    // and completely disregard our classpath vm options.
    // We then "override" this fake -cp argument with the -cp argument
    // written to the argfile and we pass the whole argfile to java using the @argfile syntax.
    s"""<component name="ProjectRunConfigurationManager">
       |  <configuration default="true" type="JUnit" factoryName="JUnit">
       |    <useClassPathOnly />
       |    $jreSettings
       |    <option name="MAIN_CLASS_NAME" value="" />
       |    <option name="METHOD_NAME" value="" />
       |    <option name="TEST_OBJECT" value="class" />
       |    <module name="$moduleName" />
       |    <option name="VM_PARAMETERS" value="-cp &quot;&quot; $vmOptionsStrArgfile" />
       |    <option name="WORKING_DIRECTORY" value="${options.workingDir}" />
       |    $searchScope
       |    <RunnerSettings RunnerId="Profile " />
       |    <RunnerSettings RunnerId="Run" />
       |    <ConfigurationWrapper RunnerId="Run" />
       |    $env
       |    <method v="2">
       |      <!-- We need to explicitly build the project, build artifact doesn't compile the tests -->
       |      <option name="Make" enabled="true" />
       |      <option name="BuildArtifacts" enabled="true">
       |        <artifact name="$artifactName" />
       |      </option>
       |    </method>
       |  </configuration>
       |</component>""".stripMargin
  }