private void SetMockHistory() { MockHistory = new Mock <DbSet <History> >().SetupData(HistoryData.Data()); MockHistory.Setup(x => x.Find(It.IsAny <object[]>())).Returns <object[]>(ids => HistoryData.Data().FirstOrDefault(d => d.HistoryId == (int)ids[0])); MockHistory.Setup(x => x.FindAsync(It.IsAny <object[]>())).Returns <object[]>(ids => Task.FromResult(HistoryData.Data().FirstOrDefault(d => d.HistoryId == (int)ids[0]))); MockContext.Setup(x => x.History).Returns(MockHistory.Object); }