public void EveryContainsSome_Contains_ShouldReturnBool_WhenPassedListAndItemInList() { // arrange var originalList = new List <int>() { 1, 2, 3 }; int num = 3; bool expected = true; var originalList2 = new List <int>() { 1, 2, 3 }; int num2 = 4; bool expected2 = false; var x = new EveryContainsSome(); // act var actual = x.Contains(originalList, num); var actual2 = x.Contains(originalList2, num2); // assert Assert.Equal(expected, actual); Assert.Equal(expected2, actual2); }