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 #alt2 import core
  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 #alt3 txt = new RopeBuffer.from(str)
  36 #alt3 trimable = new RopeBuffer.from(spaces)
  37 #alt3 trimable.append(str)
  38 #alt3 trimable.append(spaces)
  39 #alt3 num = new RopeBuffer.from(numstr)
  40
  41 # Test Text methods on all types of receivers
  42
  43 print txt.substring(0, 105)
  44 print txt.substring_from(106)
  45 print txt.length
  46 assert not txt.is_empty
  47 print txt.index_of('h')
  48 print txt.index_of_from('h', 105)
  49 print txt.index_of('Z')
  50 print txt.last_index_of('L')
  51 print txt.last_index_of_from('D', 105)
  52 print txt.has_substring("Woe", 0)
  53 print txt.has_substring("Let", 106)
  54 assert trimable != txt
  55 assert trimable.trim == txt
  56 assert num.is_numeric
  57 assert txt.has_prefix("Woe")
  58 assert txt.has_suffix("Six.")
  59 assert txt.hash == trimable.trim.hash
  60
  61 # Test Text.chars (SequenceRead[Char]) methods on all receivers
  62
  63 var chars = txt.chars
  64
  65 assert chars != txt.substring_from(106).chars
  66 assert chars[0] == 'W'
  67 assert chars.count('o') == 11
  68 assert chars.first == chars[0]
  69 assert chars.has('L')
  70 assert spaces.chars.has_only(' ')
  71 assert chars.index_of('D') == 37
  72 assert not chars.is_empty
  73 var count = 0
  74 for i in chars do
  75         assert i != '!'
  76         printn i
  77         count += 1
  78 end
  79 printn "\n"
  80 assert count == txt.length
  81 var iter_from = txt.substring_from(105).chars.iterator
  82 var txt_iter_from = chars.iterator_from(105)
  83 while iter_from.is_ok do
  84         assert iter_from.item == txt_iter_from.item
  85         iter_from.next
  86         txt_iter_from.next
  87 end
  88 assert not iter_from.is_ok and not txt_iter_from.is_ok
  89 var txt_reviter = chars.reverse_iterator_from(104)
  90 var sub_reviter = txt.substring(0,105).chars.reverse_iterator
  91 while txt_reviter.is_ok do
  92         assert txt_reviter.item == sub_reviter.item
  93         txt_reviter.next
  94         sub_reviter.next
  95 end
  96 print chars.join(" ")