Package assertions contains the implementations for all assertions which are referenced in goconvey's convey package (github.com/smartystreets/goconvey/convey) and gunit (github.com/smartystreets/gunit) for use with the So(...) method. They can also be used in traditional Go test functions and even in applications.GoConveyMode provides control over JSON serialization of failures. When using the assertions in this package from the convey package JSON results are very helpful and can be rendered in a DIFF view. In that case, this function will be called with a true value to enable the JSON serialization. By default, the assertions in this package will not serializer a JSON result, making standalone ussage more convenient.