gdb/unittests/cli-utils-selftests.c

   1 /* Unit tests for the cli-utils.c file.
   2
   3    Copyright (C) 2018-2024 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 "cli/cli-utils.h"
  21 #include "gdbsupport/selftest.h"
  22
  23 namespace selftests {
  24 namespace cli_utils {
  25
  26 static void
  27 test_number_or_range_parser ()
  28 {
  29   /* Test parsing a simple integer.  */
  30   {
  31     number_or_range_parser one ("1");
  32
  33     SELF_CHECK (!one.finished ());
  34     SELF_CHECK (one.get_number () == 1);
  35     SELF_CHECK (one.finished ());
  36     SELF_CHECK (strcmp (one.cur_tok (), "") == 0);
  37   }
  38
  39   /* Test parsing an integer followed by a non integer.  */
  40   {
  41     number_or_range_parser one_after ("1 after");
  42
  43     SELF_CHECK (!one_after.finished ());
  44     SELF_CHECK (one_after.get_number () == 1);
  45     SELF_CHECK (one_after.finished ());
  46     SELF_CHECK (strcmp (one_after.cur_tok (), "after") == 0);
  47   }
  48
  49   /* Test parsing a range.  */
  50   {
  51     number_or_range_parser one_three ("1-3");
  52
  53     for (int i = 1; i < 4; i++)
  54       {
  55         SELF_CHECK (!one_three.finished ());
  56         SELF_CHECK (one_three.get_number () == i);
  57       }
  58     SELF_CHECK (one_three.finished ());
  59     SELF_CHECK (strcmp (one_three.cur_tok (), "") == 0);
  60   }
  61
  62   /* Test parsing a range followed by a non-integer.  */
  63   {
  64     number_or_range_parser one_three_after ("1-3 after");
  65
  66     for (int i = 1; i < 4; i++)
  67       {
  68         SELF_CHECK (!one_three_after.finished ());
  69         SELF_CHECK (one_three_after.get_number () == i);
  70       }
  71     SELF_CHECK (one_three_after.finished ());
  72     SELF_CHECK (strcmp (one_three_after.cur_tok (), "after") == 0);
  73   }
  74
  75   /* Test a negative integer gives an error.  */
  76   {
  77     number_or_range_parser minus_one ("-1");
  78
  79     SELF_CHECK (!minus_one.finished ());
  80     try
  81       {
  82         minus_one.get_number ();
  83         SELF_CHECK (false);
  84       }
  85     catch (const gdb_exception_error &ex)
  86       {
  87         SELF_CHECK (ex.reason == RETURN_ERROR);
  88         SELF_CHECK (ex.error == GENERIC_ERROR);
  89         SELF_CHECK (strcmp (ex.what (), "negative value") == 0);
  90         SELF_CHECK (strcmp (minus_one.cur_tok (), "-1") == 0);
  91       }
  92   }
  93
  94   /* Test that a - followed by not a number does not give an error.  */
  95   {
  96     number_or_range_parser nan ("-whatever");
  97
  98     SELF_CHECK (nan.finished ());
  99     SELF_CHECK (strcmp (nan.cur_tok (), "-whatever") == 0);
 100   }
 101 }
 102
 103 static void
 104 test_cli_utils ()
 105 {
 106   selftests::cli_utils::test_number_or_range_parser ();
 107 }
 108
 109 }
 110 }
 111
 112 void _initialize_cli_utils_selftests ();
 113 void
 114 _initialize_cli_utils_selftests ()
 115 {
 116   selftests::register_test ("cli_utils",
 117                             selftests::cli_utils::test_cli_utils);
 118 }