Many tools for testifying
"github.com/stretchr/testify"
Interact with arbitrary JSON
"github.com/bitly/go-simplejson"
Populating objects with random values
"github.com/google/gofuzz"
Fake data generator for Go
"github.com/icrowley/fake"
Sql driver mock for Go
"github.com/DATA-DOG/go-sqlmock"
Easy mock of http responses
"github.com/jarcoal/httpmock"
Compare fields of objects, map
"github.com/go-test/deep"
Goroutine leak detector
"go.uber.org/goleak"