Add test for timer.timeit().
Add test for timer.timeit().

TouK/vumi,TouK/vumi,harrissoerja/vumi,TouK/vumi,vishwaprakashmishra/xmatrix,vishwaprakashmishra/xmatrix,vishwaprakashmishra/xmatrix,harrissoerja/vumi,harrissoerja/vumi