gdb/unittests/memrange-selftests.c

   1 /* Self tests for mem ranges for GDB, the GNU debugger.
   2
   3    Copyright (C) 2017-2022 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "gdbsupport/selftest.h"
  22 #include "memrange.h"
  23
  24 namespace selftests {
  25 namespace memrange_tests {
  26
  27 static void
  28 normalize_mem_ranges_tests ()
  29 {
  30   /* Empty vector.  */
  31   {
  32     std::vector<mem_range> ranges;
  33
  34     normalize_mem_ranges (&ranges);
  35
  36     SELF_CHECK (ranges.size () == 0);
  37   }
  38
  39   /* With one range.  */
  40   {
  41     std::vector<mem_range> ranges;
  42
  43     ranges.emplace_back (10, 20);
  44
  45     normalize_mem_ranges (&ranges);
  46
  47     SELF_CHECK (ranges.size () == 1);
  48     SELF_CHECK (ranges[0] == mem_range (10, 20));
  49   }
  50
  51   /* Completely disjoint ranges.  */
  52   {
  53     std::vector<mem_range> ranges;
  54
  55     ranges.emplace_back (20, 1);
  56     ranges.emplace_back (10, 1);
  57
  58     normalize_mem_ranges (&ranges);
  59
  60     SELF_CHECK (ranges.size () == 2);
  61     SELF_CHECK (ranges[0] == mem_range (10, 1));
  62     SELF_CHECK (ranges[1] == mem_range (20, 1));
  63   }
  64
  65   /* Overlapping and contiguous ranges.  */
  66   {
  67     std::vector<mem_range> ranges;
  68
  69     ranges.emplace_back (5, 10);
  70     ranges.emplace_back (10, 10);
  71     ranges.emplace_back (15, 10);
  72
  73     normalize_mem_ranges (&ranges);
  74
  75     SELF_CHECK (ranges.size () == 1);
  76     SELF_CHECK (ranges[0] == mem_range (5, 20));
  77   }
  78
  79   /* Duplicate ranges.  */
  80   {
  81     std::vector<mem_range> ranges;
  82
  83     ranges.emplace_back (10, 10);
  84     ranges.emplace_back (10, 10);
  85
  86     normalize_mem_ranges (&ranges);
  87
  88     SELF_CHECK (ranges.size () == 1);
  89     SELF_CHECK (ranges[0] == mem_range (10, 10));
  90   }
  91
  92   /* Range completely inside another.  */
  93   {
  94     std::vector<mem_range> ranges;
  95
  96     ranges.emplace_back (14, 2);
  97     ranges.emplace_back (10, 10);
  98
  99     normalize_mem_ranges (&ranges);
 100
 101     SELF_CHECK (ranges.size () == 1);
 102     SELF_CHECK (ranges[0] == mem_range (10, 10));
 103   }
 104 }
 105
 106 } /* namespace memrange_tests */
 107 } /* namespace selftests */
 108
 109 void _initialize_memrange_selftests ();
 110 void
 111 _initialize_memrange_selftests ()
 112 {
 113   selftests::register_test
 114     ("normalize_mem_ranges",
 115      selftests::memrange_tests::normalize_mem_ranges_tests);
 116 }