.idea/libraries/junit_plugin.xml

<component name="libraryTable">
  <library name="junit-plugin">
    <ANNOTATIONS>
      <root url="file://$PROJECT_DIR$/annotations" />
    </ANNOTATIONS>
    <CLASSES>
      <root url="jar://$PROJECT_DIR$/ideaSDK/plugins/junit/lib/idea-junit.jar!/" />
      <root url="jar://$PROJECT_DIR$/ideaSDK/plugins/junit/lib/resources_en.jar!/" />
    </CLASSES>
    <JAVADOC />
    <SOURCES>
      <root url="jar://$PROJECT_DIR$/ideaSDK/sources/sources.jar!/" />
    </SOURCES>
  </library>
</component>