add tests for Rickshaw.Series
add tests for Rickshaw.Series

egorovpavel/rickshaw,butterflyhug/rickshaw,toniher/rickshaw,JaySunSyn/rickshaw,xebitstudios/rickshaw,butterflyhug/rickshaw,toniher/rickshaw,boomtrain/rickshaw,npmcomponent/cristiandouce-rickshaw,pombredanne/rickshaw,mcanthony/rickshaw,mcanthony/rickshaw,IoTboy/rickshaw,openhose/rickshaw,adeelshahid/rickshaw,boomtrain/rickshaw,RobertoMalatesta/rickshaw,egorovpavel/rickshaw,yaronn/rickshaw,openhose/rickshaw,butterflyhug/rickshaw,VividCortex/rickshaw,shutterstock/rickshaw,dwt/rickshaw,yaronn/rickshaw,openhose/rickshaw,adeelshahid/rickshaw,JaySunSyn/rickshaw,egorovpavel/rickshaw,zhangweiabc/rickshaw,npmcomponent/cristiandouce-rickshaw,xebitstudios/rickshaw,RobertoMalatesta/rickshaw,RobertoMalatesta/rickshaw,pombredanne/rickshaw,IoTboy/rickshaw,dwt/rickshaw,pombredanne/rickshaw,dwt/rickshaw,boomtrain/rickshaw,IoTboy/rickshaw,shutterstock/rickshaw,zhangweiabc/rickshaw,dpobel/rickshaw,shutterstock/rickshaw,xebitstudios/rickshaw,JaySunSyn/rickshaw,dpobel/rickshaw,mcanthony/rickshaw,VividCortex/rickshaw,adeelshahid/rickshaw,toniher/rickshaw,zhangweiabc/rickshaw,dpobel/rickshaw