public void setup_Picture_test() { //Arrange DALMock test = new DALMock(); List <Picture> temp = new List <Picture>(); for (int i = 0; i < 3; i++) { Picture t = new Picture(); t.setId(i); if (i == 2) { t.setDirectory("new.png"); } else { t.setDirectory("test.png"); } temp.Add(t); } string expected = ("new.png"); //Act test.setupPictures(temp); string actual = test.getSetupPicDirectoryString(); // Assert Assert.AreEqual(expected, actual, "Wrong Name"); }