For deliverable d2, this commit received a grade of 98%.
Test summary: 100% (50 passing, 0 failing, 0 skipped) Line coverage: 87%
For D2, my main focus is on updating PerformQuery, writing unit tests and debugging. I found the errors in the data generated through addDataSet and improved the method. Also made some modification to helper functions to suit the new keys of this deliverable, and wrote more unit tests to improve the line coverage. This time we worked in advance and did good cooperation which leads us to pass all the tests and achieve a good grade. We are willing to maintain the rhythm and keep going on. My major commits are: https://github.com/CS310-2017Jan/cpsc310project_team185/commit/5af92458c9c5a18484036d11fa84cf62ff9b8670 which passes all performquery tests and https://github.com/CS310-2017Jan/cpsc310project_team185/commit/aaea18c50f60f997e52e05c849843becf7ae07f5 which improves the line coverage