testObjectSupplier()

size 10: [a: 10.0%, b: 20.0%, c: 70.0%]
size 100: [a: 11.0%, b: 26.0%, c: 63.0%]
size 1000: [a: 10.5%, b: 31.6%, c: 57.9%]
size 10000: [a: 10.47%, b: 29.439999999999998%, c: 60.089999999999996%]