TST: add unit tests to verify #320
TST: add unit tests to verify #320

fivejjs/ibis,Winterflower/ibis,deepfield/ibis,mariusvniekerk/ibis,cloudera/ibis,laserson/ibis,laserson/ibis,glenioborges/ibis,korotkyn/ibis,korotkyn/ibis,shaunstanislaus/ibis,deepfield/ibis,dboyliao/ibis,shaunstanislaus/ibis,adamobeng/ibis,mahantheshhv/ibis,o0neup/ibis,laserson/ibis,Supermem/ibis,cloudera/ibis,wesm/ibis,ibis-project/ibis,dalejung/ibis,korotkyn/ibis,ibis-project/ibis,dboyliao/ibis,koverholt/ibis,laserson/ibis,cloudera/ibis,aslihandincer/ibis,mariusvniekerk/ibis,mahantheshhv/ibis,Winterflower/ibis,dboyliao/ibis,fivejjs/ibis,aslihandincer/ibis,adamobeng/ibis,ibis-project/ibis,mahantheshhv/ibis,cpcloud/ibis,wesm/ibis,glenioborges/ibis,cpcloud/ibis,Supermem/ibis,ashhher3/ibis,mahantheshhv/ibis,cpcloud/ibis,aslihandincer/ibis,ashhher3/ibis,ashhher3/ibis,ashhher3/ibis,o0neup/ibis,shaunstanislaus/ibis,Winterflower/ibis,dboyliao/ibis,ibis-project/ibis,glenioborges/ibis,Supermem/ibis,koverholt/ibis,glenioborges/ibis,deepfield/ibis,cpcloud/ibis,deepfield/ibis,adamobeng/ibis,adamobeng/ibis,o0neup/ibis,korotkyn/ibis,dalejung/ibis,fivejjs/ibis,dalejung/ibis,mariusvniekerk/ibis,wesm/ibis,koverholt/ibis,aslihandincer/ibis,koverholt/ibis,Supermem/ibis,mariusvniekerk/ibis