This is Ray Comfort's Good Person test, as asinine a test as Ray himself.
It starts from the basis that God is real, as is sin and eternal punishment. Until those facts are established, the rest is meaningless.
It has other problems. Comfort asserts that Hell is the legitimate punishment for all sins, meaning that if you look at a person and fantasize about having relations with them, you are as guilty of a crime of precisely the same significance and punishment as genocide; there is no distinction, which can hardly be said to be 'just' (unless you redefine the word, of course - many Christians will say argue because God is perfectly good, anything he decrees is perfectly good too, such as the Amalekites).
The idea that a white lie is still a lie may be literally true, but the test sees no distinction between a terrorist telling the cops a device is in one place when it's elsewhere, (Godwin alert) someone lying to the Nazis that there's no Jews hiding in their attic or someone lying about how nice someone's food is at a dinner party to protect their feelings.
By the way, if someone that tells one lie is to be called a liar, someone who tells one truth must ergo be called truthful.
It frightens me that anyone might regard this as even vaguely convincing.