Brain: adding test coverage for investigator file to ensure all methods are tested
Brain: adding test coverage for investigator file to ensure all methods are tested

unicefuganda/uSurvey,antsmc2/mics,unicefuganda/mics,unicefuganda/mics,antsmc2/mics,antsmc2/mics,unicefuganda/uSurvey,unicefuganda/mics,unicefuganda/uSurvey,unicefuganda/uSurvey,unicefuganda/uSurvey