adding more unit tests
adding more unit tests

teoliphant/numpy-refactor,numpy/datetime,numpy/datetime,jasonmccampbell/numpy-refactor-sprint,jasonmccampbell/numpy-refactor-sprint,jasonmccampbell/numpy-refactor-sprint,numpy/datetime,jasonmccampbell/numpy-refactor-sprint,numpy/datetime,teoliphant/numpy-refactor,teoliphant/numpy-refactor,teoliphant/numpy-refactor,teoliphant/numpy-refactor