improve word2vec unit tests
improve word2vec unit tests

jaksmid/gensim,ziky90/gensim,tzoiker/gensim,summanlp/gensim,gojomo/gensim,akutuzov/gensim,robotcator/gensim,dsquareindia/gensim,ELind77/gensim,bhargavvader/gensim,davechallis/gensim,piskvorky/gensim,markroxor/gensim,tzoiker/gensim,gojomo/gensim,macks22/gensim,tzoiker/gensim,RaRe-Technologies/gensim,davechallis/gensim,markroxor/gensim,loisaidasam/gensim,gojomo/gensim,zachmayer/gensim,piskvorky/gensim,manasRK/gensim,jaksmid/gensim,quole/gensim,ziky90/gensim,quole/gensim,gojomo/gensim,jaksmid/gensim,laic/gensim,summanlp/gensim,loisaidasam/gensim,akutuzov/gensim,quole/gensim,macks22/gensim,laic/gensim,loisaidasam/gensim,pombredanne/gensim,pombredanne/gensim,robotcator/gensim,RaRe-Technologies/gensim,Kreiswolke/gensim,mattilyra/gensim,olavurmortensen/gensim,RaRe-Technologies/gensim,mattilyra/gensim,pombredanne/gensim,dsquareindia/gensim,Kreiswolke/gensim,summanlp/gensim,olavurmortensen/gensim,akutuzov/gensim,mattilyra/gensim,olavurmortensen/gensim,ELind77/gensim,isohyt/gensim,isohyt/gensim,Kreiswolke/gensim,robotcator/gensim,zachmayer/gensim,isohyt/gensim,davechallis/gensim,bhargavvader/gensim,ziky90/gensim,dsquareindia/gensim,manasRK/gensim,ELind77/gensim,RaRe-Technologies/gensim,laic/gensim,markroxor/gensim,manasRK/gensim,bhargavvader/gensim,macks22/gensim,zachmayer/gensim,piskvorky/gensim