Harry encounters various tests that challenge both his wits and wizardry skills. The major test he goes through is facing the troll that professor Quirrell, had let into the school. Harry and Ron come to Hermionie's aid when she is cornered by the troll in the girls restroom. This test serves to bring the three friends closer together, improve Ron's magical skills, and raise the three friends amounts of courage and bravery.
The Mirror of Erised is central temptation for Harry. Harry is almost lost in the allure of what the mirror shows him. He wants so desperately to recover the lost love of his family that he is willing to give up everything else for even the illusion that he might be able to have it.
The Dark Moment is where they must pass three tests: getting past Devil's Snare, a plant that suffocates people to death which Hermionie's intelligence helps getting past, real life-sized chess game which using Ron's playing skills helps to win and Fluffy, the three-headed dog.
The Final Conflict happens when Harry confronts Professor Quirrell, the shape-shifter, and discovers that he is allied with Voldemort, the shadow for the Philospher's Stone. In an act of complete bravery, Harry refuses Voldemort from the possession of the Philospher's Stone. Harry's life is most at stake when Voldemort's soul passes rigth through him as he leaves, without the stone, after Quirrell has been defeated.The test is more challenging than the rest because Harry is alone and up against a much more powerful and experienced wizard than himself.
Harry returns to his ordinary world with several rewards.He has gained the knowledge that there is a wizard world in which he is greatly appreciated and most likely will strive in.Harry has also become stronger in character and can now be considered a more experienced and mature individual gaining two supportive close friends, Ron and Hermionie.