public int CompareTest(AddressFamily x,
                               AddressFamily y)
        {
            // Arrange
            var comparer = new DefaultAddressFamilyComparer();

            // Act
            var compare = comparer.Compare(x, y);

            // Assert
            return(compare);
        }
        public void Compare_Test(int expected,
                                 AddressFamily x,
                                 AddressFamily y)
        {
            // Arrange
            var comparer = new DefaultAddressFamilyComparer();

            // Act
            var result = comparer.Compare(x, y);

            // Assert
            Assert.Equal(expected, result);
        }