tests/test_text.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 #alt3 import bufferized_ropes
  16
  17 var str = "Woe to you, oh earth and sea for the Devil sends the beast with wrath because he knows the time is short. Let him who hath understanding reckon the number of the beast, for it is a human number, its number is Six Hundred and Sixty-Six."
  18 var spaces = "           "
  19 var numstr = "1001"
  20
  21 var txt: Text
  22 var trimable: Text
  23 var num: Text
  24
  25 txt = str
  26 trimable = spaces + str + spaces
  27 num = numstr
  28
  29 #alt1 txt = new FlatBuffer.from(str)
  30 #alt1 trimable = new FlatBuffer.from(spaces)
  31 #alt1 trimable.append(str)
  32 #alt1 trimable.append(spaces)
  33 #alt1 num = new FlatBuffer.from(numstr)
  34
  35 #alt2 txt = new RopeString.from(str)
  36 #alt2 trimable = new RopeString.from(spaces)
  37 #alt2 trimable = trimable + str
  38 #alt2 trimable = trimable + spaces
  39 #alt2 num = new RopeString.from(numstr)
  40
  41 #alt3 txt = new RopeString.from(str)
  42 #alt3 trimable = new RopeString.from(spaces)
  43 #alt3 trimable = trimable + str
  44 #alt3 trimable = trimable + spaces
  45 #alt3 num = new RopeString.from(numstr)
  46
  47 # Test Text methods on all types of receivers
  48
  49 print txt.substring(0, 105)
  50 print txt.substring_from(106)
  51 print txt.length
  52 assert not txt.is_empty
  53 print txt.index_of('h')
  54 print txt.index_of_from('h', 105)
  55 print txt.index_of('Z')
  56 print txt.last_index_of('L')
  57 print txt.last_index_of_from('D', 105)
  58 print txt.has_substring("Woe", 0)
  59 print txt.has_substring("Let", 106)
  60 assert trimable != txt
  61 assert trimable.trim == txt
  62 assert num.is_numeric
  63 assert txt.has_prefix("Woe")
  64 assert txt.has_suffix("Six.")
  65 assert txt.hash == trimable.trim.hash
  66
  67 # Test Text.chars (SequenceRead[Char]) methods on all receivers
  68
  69 var chars = txt.chars
  70
  71 assert chars != txt.substring_from(106).chars
  72 assert chars[0] == 'W'
  73 assert chars.count('o') == 11
  74 assert chars.first == chars[0]
  75 assert chars.has('L')
  76 assert spaces.chars.has_only(' ')
  77 assert chars.index_of('D') == 37
  78 assert not chars.is_empty
  79 var count = 0
  80 for i in chars do
  81         assert i != '!'
  82         printn i
  83         count += 1
  84 end
  85 printn "\n"
  86 assert count == txt.length
  87 var iter_from = txt.substring_from(105).chars.iterator
  88 var txt_iter_from = chars.iterator_from(105)
  89 while iter_from.is_ok do
  90         assert iter_from.item == txt_iter_from.item
  91         iter_from.next
  92         txt_iter_from.next
  93 end
  94 assert not iter_from.is_ok and not txt_iter_from.is_ok
  95 var txt_reviter = chars.reverse_iterator_from(104)
  96 var sub_reviter = txt.substring(0,105).chars.reverse_iterator
  97 while txt_reviter.is_ok do
  98         assert txt_reviter.item == sub_reviter.item
  99         txt_reviter.next
 100         sub_reviter.next
 101 end
 102 print chars.join(" ")