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 standard
  16 #alt2 import buffered_ropes
  17
  18 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."
  19 var spaces = "           "
  20 var numstr = "1001"
  21
  22 var txt: Text
  23 var trimable: Text
  24 var num: Text
  25
  26 txt = str
  27 trimable = spaces + str + spaces
  28 num = numstr
  29
  30 #alt1 txt = new FlatBuffer.from(str)
  31 #alt1 trimable = new FlatBuffer.from(spaces)
  32 #alt1 trimable.append(str)
  33 #alt1 trimable.append(spaces)
  34 #alt1 num = new FlatBuffer.from(numstr)
  35
  36 #alt3 txt = new RopeBuffer.from(str)
  37 #alt3 trimable = new RopeBuffer.from(spaces)
  38 #alt3 trimable.append(str)
  39 #alt3 trimable.append(spaces)
  40 #alt3 num = new RopeBuffer.from(numstr)
  41
  42 # Test Text methods on all types of receivers
  43
  44 print txt.substring(0, 105)
  45 print txt.substring_from(106)
  46 print txt.length
  47 assert not txt.is_empty
  48 print txt.index_of('h')
  49 print txt.index_of_from('h', 105)
  50 print txt.index_of('Z')
  51 print txt.last_index_of('L')
  52 print txt.last_index_of_from('D', 105)
  53 print txt.has_substring("Woe", 0)
  54 print txt.has_substring("Let", 106)
  55 assert trimable != txt
  56 assert trimable.trim == txt
  57 assert num.is_numeric
  58 assert txt.has_prefix("Woe")
  59 assert txt.has_suffix("Six.")
  60 assert txt.hash == trimable.trim.hash
  61
  62 # Test Text.chars (SequenceRead[Char]) methods on all receivers
  63
  64 var chars = txt.chars
  65
  66 assert chars != txt.substring_from(106).chars
  67 assert chars[0] == 'W'
  68 assert chars.count('o') == 11
  69 assert chars.first == chars[0]
  70 assert chars.has('L')
  71 assert spaces.chars.has_only(' ')
  72 assert chars.index_of('D') == 37
  73 assert not chars.is_empty
  74 var count = 0
  75 for i in chars do
  76         assert i != '!'
  77         printn i
  78         count += 1
  79 end
  80 printn "\n"
  81 assert count == txt.length
  82 var iter_from = txt.substring_from(105).chars.iterator
  83 var txt_iter_from = chars.iterator_from(105)
  84 while iter_from.is_ok do
  85         assert iter_from.item == txt_iter_from.item
  86         iter_from.next
  87         txt_iter_from.next
  88 end
  89 assert not iter_from.is_ok and not txt_iter_from.is_ok
  90 var txt_reviter = chars.reverse_iterator_from(104)
  91 var sub_reviter = txt.substring(0,105).chars.reverse_iterator
  92 while txt_reviter.is_ok do
  93         assert txt_reviter.item == sub_reviter.item
  94         txt_reviter.next
  95         sub_reviter.next
  96 end
  97 print chars.join(" ")