Ab,
You wrote: So, it was a practical joke, or a game of some sort?
No, it was a demonstration of the fact that the human race is less righteous than God, and thus undeserving of eternal life.
You wrote: If your interpretation is true ... there never was a test as the test was not genuine.
Where in the Bible does it describe the events which took place in Eden as "a test"?
You wrote: after this happened, it's meant to have set up the question of whether humans could govern themselves which history from that point is meant to have answered.
Really? Where does it say that in the Bible? It doesn't. That is Watchtower theology, which you have thoroughly confused with biblical theology.
You wrote: But god had cursed mankind with disease, death, toil, labour-pains... almost to make sure they couldn't suceed, and on at least one occasion when they were doing well (Tower of Babel) intervened to mess things up, and on another occasion (The Flood) wiped everyone out bar those that were doing what he wanted, which contradicted any rules of fair-play.
Again all Watchtower/Fundy theology, not biblical theology.
You wrote: You contradict yourself; you say god gave us a sinful nature, but that he also made us free. That's contradictory.
Nope. Our "sinful" nature is simply that we, unlike God, have the ability to act unrighteously if we choose. That is also our "free" nature.
You wrote: No, not free. Inclined to do sin, as you state yourself. That is not free.
I never said we are "inclined" toward evil, anymore than we are inclined toward good.
You wrote: And not free to do good and evil, as evil attracts penalties, which means you are not free to be evil.
Evil attracts no real penalties. Death is not a penalty for doing evil. It is a part of our nature. We were not created to live forever. Eternal life, however, is a gift God gives to all whom He declares to be righteous because of what Jesus Christ did for us. To receive this gift we need only to accept it by faith.
You wrote: If we were created to live forever with god knowing Adam and Eve would sin, then taking away imortality for doing something they were designed to do is not fair.
We were not created to live forever. Neither were Adam and Eve. The Genesis account clearly indicates that Adam and Eve were created mortal with a dying nature just like us. The story of Adam and Eve told in Genesis makes clear that their being able to live forever was not a part of their original physical nature. Rather, Adam and Eve's ability to live forever depended entirely on their eating from a tree "in the middle of the garden" of Eden, "the tree of life." (Genesis 2:9) Genesis indicates that had Adam and Eve been allowed to continue eating from "the tree of life" their lives would have been prolonged indefinitely. (Genesis 3:22-24) But when God prevented them from ever again eating from "the tree of life" they died what were apparently natural deaths.
A careful reading of the Genesis account shows us that living forever would have been as unnatural for Adam and Eve as it would now be for us. Genesis does not indicate that Adam and Eve originally had eternal life programmed into their genetic codes by God and later had their genetic codes reprogrammed by God in order to remove eternal life from those codes. Rather, Genesis indicates that Adam and Eve would have lived forever only if God had graciously given them eternal life from an outside source, "the tree of life."