in report-builder/src/jetbrains/coverage/report/idea/IDEACoverageClassInfo.java [145:157]
private boolean isCovered(final Integer status) {
if (status == null) return false;
switch ((byte)status.intValue()) {
case LineCoverage.NONE:
return false;
case LineCoverage.PARTIAL:
return true;
case LineCoverage.FULL:
return true;
}
return false;
}