GenFu is a library you can use to generate realistic test data. It is composed of several property fillers that can populate commonly named properties through reflection using an internal database of values or randomly created data. You can override any of the fillers, give GenFu hints on how to fill them.
PR #133 doesn't include support for the new feature of generic fillers. As result, those tests fail. There is a new PR, #144, for them.