public void InstrumentServiceTestGetAllInstrumentsSuccess() { // Arrange var expectedSize = 30; var instrumentObjects = Builder<party_instrumenttype>.CreateListOfSize(30).Build(); _instrumentRepository.Setup(i => i.GetAll()).Returns(instrumentObjects); var instrumentService = new InstrumentService(_instrumentRepository.Object); // Act var instruments = instrumentService.GetAllInstruments(); // Assert Assert.AreEqual(expectedSize, instruments.Count()); }