public void GivenAnEntityRequest_WhenSubmittedByAnAuthenticatedUser_TheEntityIsCreated()
{
var fakeEntity = new Entity {
Name = "John Doe",
PrimaryEmail = "*****@*****.**",
RegistrationNumber = "1234567",
Url = "https://johndoes.com"
};
var entitiesDbSetMock = new Mock <DbSet <Entity> >();
contextMock.SetupGet(r => r.Entities).Returns(entitiesDbSetMock.Object);
var response = entitiesController.CreateEntity(fakeEntity) as CreatedResult;
entitiesDbSetMock.Verify(r => r.Add(fakeEntity), Times.Once);
contextMock.Verify(r => r.SaveChanges(), Times.Once);
Assert.IsInstanceOfType(response, typeof(CreatedResult));
}