Well is an adverb.

So, if you are talking about “doing,” a verb, you need to use an adverb to describe (modify) it.

If you “do good” you are performing kind deeds and helping people: “Do good to those who hurt you.”

If you “do well” you are performing correctly. “I didn’t do very well on the math problems.”

“I hope you do good on your test”. this is perfect english but i am not saying its the best choice

so the sentence is incorrect because of “all”.

When a person says “I feel good” they are actually saying that their sense of touch is good; they should say “I feel well,” meaning that they aren’t sick, they feel fine.

In your sentence, “I hope you do good on your test” it sounds to an English major like you hope someone does a good deed on their test… “to do good” means to do a good deed, “to do well” means that the person might pass the test, they might do an action and do it well.

Look each word up in your dictionary and you will see long lists of how each word works best and why. And good luck to you!

I guess if you were to “do good” on your test, it would be like doing a good deed or something, whereas if you “do well,” you’re answering in a satisfactory way.

You could say something like “I hope you do a good job on your test,” that would be okay.

I am guessing on all of this.