public async Task GetAllBids_CallsRepositoryGetAllBidsWithCorrectArguments()
{
//arrange
var groupCode = 1;
var auctionId = 1;
var mockRepo = new Mock <IAuctionsRepository>();
mockRepo.Setup(repo => repo.GetAllBids(groupCode, auctionId)).Returns(Task.FromResult((IList <Bid>)null)).Verifiable();
var userStoreMock = new Mock <IUserStore <AppUser> >();
var userManagerMock = new Mock <UserManager <AppUser> >(userStoreMock.Object, null, null, null, null, null, null, null, null);
var auctions = new Auctions(mockRepo.Object, userManagerMock.Object);
//act
await auctions.GetAllBids(auctionId, groupCode);
//assert
mockRepo.Verify(repo => repo.GetAllBids(groupCode, auctionId));
}