God's "mission" isn't, ultimately, to get you to believe in him; it is to have a people set apart for himself who love him more than everything else and to sing praises to his glory for eternity. heaven is not just a nice place you go to when you die; it is a place of eternal fellowship with and eternal worship of the Son of God. Faith is not a test of man, it is a gift of God to man.
The Biblical concept of God testing a person's faith is not to find out whether a person knows God or not (God already knows that) but is a part of God's refining process, just like you refine gold by applying heat to remove all the impurities. What you don't understand is that God has to turn those who are dead in sin into those who are alive to him. It's not some weird test of what people believe, it's God's work in a person to make them a living vessel for the Holy Spirit and to conform them to the image of the Son of God. The result of God's work is faith in Christ. Tried and tested, baptised with water and with fire.
The Biblical narrative isn't about man but about God's salvation of man.