God's intention was that all would live forever. He gave one test to the two first people for obedience and they failed him. Even though He had given them everything. Who knows how long they enjoyed their bliss in eden before they did this.

No it was not God's intention that death/suffering enter His perfect world. God made all things good and He intended all live forever. To imagine this curse was all "wanted" or part of His original plan does not add up and would make of God a liar. Thanks to the original fall/sin, all mankind has suffered as a result (including animals). Suffering and death entered the world, which was not God's original intention if you read Genesis. They came as a result of sin. They may not be "evil" in and of themselves, but they are the results of a cursed world and again, were NOT part of His original intention.

Thanks to such disobedience, the first two people wrought a curse upon themselves and all earth and its inhabitants and future offspring. Sounds cruel yes, but thankfully God provided the remedy "Christ" and we know, that even through such suffering, temptations in sin, death etc, we have hope of the ressurrection. He could have wiped us all out and given up, but instead He gave a remedy.

This need not have ever occured, but thanks to their pride, it did. How can pride and disobedience ever be "good"? We should learn from the error of Adam and Eve and avoid the same error and observe Christ and His ways, which is the remedy to what our first parents brought upon all.

Because of what they did, God required a sacrifice for us. He sent His only begotten Son to earth and become that sacrifice for us. Causing Him to die a cruel/wretched suffering and death on the cross. One of which could have been avoided had human beings remained faithful from the start and loved Him as He loved us! Pride is a terrible thing and none of this would ever have been necessary if they had only obeyed from the start.

One only has to read the bible to see the grief of the Creator as His creatures so often fall in similar manner to their first parents. How patient He is and merciful to so many ungrateful human beings. Even then He still extends His hand of mercy and gives hope to all sinners of a new beginning and a victorious afterlife. Is it much to ask for us to obey Him in return? The commandments were set forth for our good, not our undoing and misery. Something necessary due to our sin natures.