public void Create_Prime_MultiplicationTable_When_Input_Is_List_Of_Prime_Numbers_Return_Multiplication_Answers() { //Arrange var input = new List <int>() { 2, 3, 5 }; var expectedResult = new List <List <int> >() { new List <int>() { 4, 6, 10 }, new List <int>() { 6, 9, 15 }, new List <int>() { 10, 15, 25 } }; //Act var actualResult = _prime.CreatePrimeMultiplicationTable(input); //Arrange Assert.Equal(expectedResult, actualResult); Assert.Equal(3, actualResult.Count); }