v0.7.19

Changelog

82c4af1 Bump version: 0.7.18 → 0.7.19
fbac31e Use testify
42e986d Make sure we do not call method on nil
45a4d70 Refactor test
88f3899 Move reusuable code into a sub package
d002e28 Create a Store struct to hold helper methods
0342a80 More unit test
bb6de01 Remove unnecessary indent level
2b1cafe Clean up