def assert
  raise "Assertion failed!" unless yield
end
 
name = "bettysue"
assert { name == "bettysue" }
assert {name == "kary"} #this is the yield. This is true. 

 
def is_fibonacci?(i)
  fib_a = [1,1]
  until fib_a[-1] >= i do
        fib_a << (fib_a[-2] + fib_a[-1])
    end
    fib_a[-1] == i
    raise "Assertion failed!" unless yield
end
#driver test code
is_fibonacci?(144){true}
is_fibonacci?(1596){false}
is_fibonacci?(610){true}
is_fibonacci?(5000){false}
is_fibonacci?(6600){true}
is_fibonacci?(6765){true}


#good_guess exercise

def good_guess?(i)
   raise "Assertion failed!" unless yield
  if i == 42
    true
  else 
    false
  end
end

good_guess?(42){false}
good_guess?(42){true}



#------
#When I ran it from textmate and on the terminal command line- I got this
=begin
Monicas-MacBook-Air:programs monicacho$ ruby assert_statements-original_gist.rb
assert_statements-original_gist.rb:8:in `assert': Assertion failed! (RuntimeError)
	from assert_statements-original_gist.rb:13:in `<main>'
Monicas-MacBook-Air:programs monicacho$ 
=end

#-------
#basically line #10 is saying that the last command is failed. Yelling "Assertion failed!" irb :6 is failed.



# Run your assert statements to find out which test has an incorrect expectation.  The error shown should point you to a line number trace of the offending assert statement.  Correct the expectation (`true` or `false`?), and rerun the code to make sure there are no other errors.
 
#
#Write down the integer that failed the assertion below:
# is_fibonacci?(1596){false}
#is_fibonacci?(5000){false}
 
 
#5) BONUS: INCLUDE A CUSTOM ERROR MESSAGE 
#Your new assert method code and test code here:
def asserted
  raise "Failed!" unless yield
end

name = "Maria"

asserted { name == "Maria"}
asserted { name == "Caroline"}
 
#6) Reflection
# this was cool.