public void Existent_User_Can_Be_Added_To_Existent_Group()
{
IUserRepository userRepo = Substitute.For<IUserRepository>();
IGroupRepository groupRepo = Substitute.For<IGroupRepository>();
userRepo.UserExists("fred").Returns(true);
groupRepo.GroupExists("testgroup").Returns(true);
UserController controller = new UserController(userRepo, groupRepo);
var result = controller.AddUserToGroup("fred", "testgroup");
groupRepo.Received().AddUserToGroup("fred", "testgroup");
}
public void User_Cannot_Be_Added_To_A_Group_Multiple_Times()
{
IUserRepository userRepo = Substitute.For<IUserRepository>();
IGroupRepository groupRepo = Substitute.For<IGroupRepository>();
userRepo.UserExists("fred").Returns(true);
groupRepo.GroupExists("testgroup").Returns(true);
groupRepo.UserIsAMember("fred", "testgroup").Returns(true);
UserController controller = new UserController(userRepo, groupRepo);
var result = controller.AddUserToGroup("fred", "testgroup");
groupRepo.DidNotReceive().AddUserToGroup("fred", "testgroup");
}