public void ShouldSortWithBubleSort() { //Arrange BubleSort bubleSort = new BubleSort(); int n1 = 100, n2 = 150; int expectedn1 = 150, expectedn2 = 100; //Act bubleSort.Swap(ref n1, ref n2); //Assert Assert.AreEqual(n1, expectedn1); Assert.AreEqual(n2, expectedn2); }