They are separate test. The salt one is the same as the baking soda test, just with salt instead. If the urine slightly changes colour, becomes cloudy, or a layer of cloudy or foam covers the top, it's a boy. If it stay clear and basically no changes, or just a few bubbles/fizz, it's a girl. The ring test is when you attach a ring to a string or a chain and hold it over your belly. If it swing back and forth like a pendulum it's a boy, if it swings around in a circle it's a girl.