tests/unistr/test-strncmp.h

   1 /* Test of uN_strncmp() functions.
   2    Copyright (C) 2010-2020 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2010.  */
  18
  19 static void
  20 test_strncmp (void)
  21 {
  22   {
  23     static const UNIT input1[] = { 0 };
  24     static const UNIT input2[] = { 0 };
  25     ASSERT (U_STRNCMP (input1, input2, 0) == 0);
  26     ASSERT (U_STRNCMP (input1, input2, 1) == 0);
  27     ASSERT (U_STRNCMP (input1, input2, 1000000) == 0);
  28   }
  29   {
  30     static const UNIT input1[] = { 0 };
  31     static const UNIT input2[] = { 'f', 'o', 'o', 0 };
  32     ASSERT (U_STRNCMP (input1, input2, 0) == 0);
  33     ASSERT (U_STRNCMP (input1, input2, 1) < 0);
  34     ASSERT (U_STRNCMP (input2, input1, 1) > 0);
  35     ASSERT (U_STRNCMP (input1, input2, 3) < 0);
  36     ASSERT (U_STRNCMP (input2, input1, 3) > 0);
  37     ASSERT (U_STRNCMP (input1, input2, 4) < 0);
  38     ASSERT (U_STRNCMP (input2, input1, 4) > 0);
  39     ASSERT (U_STRNCMP (input1, input2, 1000000) < 0);
  40     ASSERT (U_STRNCMP (input2, input1, 1000000) > 0);
  41   }
  42   {
  43     static const UNIT input1[] = { 'f', 'o', 'o', 0 };
  44     static const UNIT input2[] = { 'f', 'o', 'o', 0 };
  45     ASSERT (U_STRNCMP (input1, input2, 0) == 0);
  46     ASSERT (U_STRNCMP (input1, input2, 1) == 0);
  47     ASSERT (U_STRNCMP (input1, input2, 2) == 0);
  48     ASSERT (U_STRNCMP (input1, input2, 3) == 0);
  49     ASSERT (U_STRNCMP (input1, input2, 4) == 0);
  50     ASSERT (U_STRNCMP (input1, input2, 1000000) == 0);
  51   }
  52   {
  53     static const UNIT input1[] = { 'f', 'o', 'o', 0 };
  54     static const UNIT input2[] = { 'b', 'a', 'r', 0 };
  55     ASSERT (U_STRNCMP (input1, input2, 0) == 0);
  56     ASSERT (U_STRNCMP (input1, input2, 1) > 0);
  57     ASSERT (U_STRNCMP (input2, input1, 1) < 0);
  58     ASSERT (U_STRNCMP (input1, input2, 2) > 0);
  59     ASSERT (U_STRNCMP (input2, input1, 2) < 0);
  60     ASSERT (U_STRNCMP (input1, input2, 1000000) > 0);
  61     ASSERT (U_STRNCMP (input2, input1, 1000000) < 0);
  62   }
  63   {
  64     static const UNIT input1[] = { 'f', 'o', 'o', 0 };
  65     static const UNIT input2[] = { 'f', 'o', 'o', 'b', 'a', 'r', 0 };
  66     ASSERT (U_STRNCMP (input1, input2, 0) == 0);
  67     ASSERT (U_STRNCMP (input1, input2, 1) == 0);
  68     ASSERT (U_STRNCMP (input1, input2, 2) == 0);
  69     ASSERT (U_STRNCMP (input1, input2, 3) == 0);
  70     ASSERT (U_STRNCMP (input1, input2, 4) < 0);
  71     ASSERT (U_STRNCMP (input2, input1, 4) > 0);
  72     ASSERT (U_STRNCMP (input1, input2, 1000000) < 0);
  73     ASSERT (U_STRNCMP (input2, input1, 1000000) > 0);
  74   }
  75   {
  76     static const UNIT input1[] = { 'o', 'o', 'm', 'p', 'h', 0 };
  77     static const UNIT input2[] = { 'o', 'o', 'p', 's', 0 };
  78     ASSERT (U_STRNCMP (input1, input2, 0) == 0);
  79     ASSERT (U_STRNCMP (input1, input2, 1) == 0);
  80     ASSERT (U_STRNCMP (input1, input2, 2) == 0);
  81     ASSERT (U_STRNCMP (input1, input2, 3) < 0);
  82     ASSERT (U_STRNCMP (input2, input1, 3) > 0);
  83     ASSERT (U_STRNCMP (input1, input2, 4) < 0);
  84     ASSERT (U_STRNCMP (input2, input1, 4) > 0);
  85     ASSERT (U_STRNCMP (input1, input2, 5) < 0);
  86     ASSERT (U_STRNCMP (input2, input1, 5) > 0);
  87     ASSERT (U_STRNCMP (input1, input2, 6) < 0);
  88     ASSERT (U_STRNCMP (input2, input1, 6) > 0);
  89     ASSERT (U_STRNCMP (input1, input2, 1000000) < 0);
  90     ASSERT (U_STRNCMP (input2, input1, 1000000) > 0);
  91   }
  92 }