Imports github.com/Masterminds/squirrel github.com/Shopify/ghostferry github.com/Shopify/ghostferry/sqlwrapper github.com/sirupsen/logrus github.com/stretchr/testify/assert github.com/stretchr/testify/suite Standard library imports database/sql fmt io/ioutil math/rand os path/filepath regexp runtime strconv strings sync testing time