public void AddTestTest()
{
var resultBefore = _repo.GetAllTests().Count;
var id = Guid.NewGuid();
_repo.AddTest(new Test()
{
CompleteTime = DateTime.Now,
Id = id,
Username = "******"
});
var resultAfter = _repo.GetAllTests().Count;
Assert.AreEqual(1, resultAfter - resultBefore);
_repo.RemoveTestByGuid(id);
}