def test_get(): colors = SingleLinkedList() colors.push("Vermillion") assert colors.get(0) == "Vermillion" colors.push("Sap Green") assert colors.get(0) == "Vermillion" assert colors.get(1) == "Sap Green" colors.push("Cadmium Yellow Light") assert colors.get(0) == "Vermillion" assert colors.get(1) == "Sap Green" assert colors.get(2) == "Cadmium Yellow Light" assert colors.pop() == "Cadmium Yellow Light" assert colors.get(0) == "Vermillion" assert colors.get(1) == "Sap Green" assert colors.get(2) == None colors.pop() assert colors.get(0) == "Vermillion" colors.pop() assert colors.get(0) == None