map length: 2
map read: answer = 42
  answer = 42
  foo = 3
map length: 1
map read: data = 3
  data = 3
map length: 12
map read: three = 3
  one = 1
  two = 2
  three = 3
  four = 4
  five = 5
  six = 6
  seven = 7
  eight = 8
  nine = 9
  ten = 10
  eleven = 11
  twelve = 12
map length: 12
map read: ten = 10
  one = 1
  two = 2
  three = 3
  four = 4
  five = 5
  six = 6
  seven = 7
  eight = 8
  nine = 9
  ten = 10
  eleven = 11
  twelve = 12
map length: 11
map read: seven = 7
  one = 1
  two = 2
  three = 3
  four = 4
  five = 5
  seven = 7
  eight = 8
  nine = 9
  ten = 10
  eleven = 11
  twelve = 12
lookup with comma-ok: eight 8 true
lookup with comma-ok: nokey 0 false
false true 2
true false 0
4
42
4321
5555
tested preallocated map
tested growing of a map