Did Abraham pass or fail in God's test? The story about Abraham sacrificing Isaac: Gen 21:12


  But God said to him, “Do not be so distressed about the boy and your
  slave woman. Listen to whatever Sarah tells you, because it is through
  Isaac that your offspring will be reckoned.


and later: Gen 22:2


  Then God said, “Take your son, your only son, whom you love—Isaac—and
  go to the region of Moriah. Sacrifice him there as a burnt offering on
  a mountain I will show you.”


Abraham used to dispute with God previously (Gen 18:23). If he listened, shouldn't he answer something like "And what about his offsprings, huh?"

Couldn't be the point something like Do you remember what I told you? It is hard to believe that the message is Be fanatic. The Gen 22:12 could be a polite way how to say Stop it, fool!

I'd like to know if there is some inconsistency in this explanation and consequently: if Abraham passed or fail his test.
Hebrews 11 explains that this was a test of faith: (KJV)


  17 By faith Abraham, when he was tried, offered up Isaac: and he that
  had received the promises offered up his only begotten son,
  
  18 Of whom it was said, That in Isaac shall thy seed be called:
  
  19 Accounting that God was able to raise him up, even from the dead;
  from whence also he received him in a figure.


and given that this passage in Hebrews is specifically showing good examples of faith, to illustrate the importance of faith, it's fairly safe to say that, according to the author of Hebrews, Abraham passed the test.