gdb/unittests/cli-utils-selftests.c

   1 /* Unit tests for the cli-utils.c file.
   2
   3    Copyright (C) 2018-2020 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 "cli/cli-utils.h"
  22 #include "gdbsupport/selftest.h"
  23
  24 namespace selftests {
  25 namespace cli_utils {
  26
  27 static void
  28 test_number_or_range_parser ()
  29 {
  30   /* Test parsing a simple integer.  */
  31   {
  32     number_or_range_parser one ("1");
  33
  34     SELF_CHECK (!one.finished ());
  35     SELF_CHECK (one.get_number () == 1);
  36     SELF_CHECK (one.finished ());
  37     SELF_CHECK (strcmp (one.cur_tok (), "") == 0);
  38   }
  39
  40   /* Test parsing an integer followed by a non integer.  */
  41   {
  42     number_or_range_parser one_after ("1 after");
  43
  44     SELF_CHECK (!one_after.finished ());
  45     SELF_CHECK (one_after.get_number () == 1);
  46     SELF_CHECK (one_after.finished ());
  47     SELF_CHECK (strcmp (one_after.cur_tok (), "after") == 0);
  48   }
  49
  50   /* Test parsing a range.  */
  51   {
  52     number_or_range_parser one_three ("1-3");
  53
  54     for (int i = 1; i < 4; i++)
  55       {
  56         SELF_CHECK (!one_three.finished ());
  57         SELF_CHECK (one_three.get_number () == i);
  58       }
  59     SELF_CHECK (one_three.finished ());
  60     SELF_CHECK (strcmp (one_three.cur_tok (), "") == 0);
  61   }
  62
  63   /* Test parsing a range followed by a non-integer.  */
  64   {
  65     number_or_range_parser one_three_after ("1-3 after");
  66
  67     for (int i = 1; i < 4; i++)
  68       {
  69         SELF_CHECK (!one_three_after.finished ());
  70         SELF_CHECK (one_three_after.get_number () == i);
  71       }
  72     SELF_CHECK (one_three_after.finished ());
  73     SELF_CHECK (strcmp (one_three_after.cur_tok (), "after") == 0);
  74   }
  75
  76   /* Test a negative integer gives an error.  */
  77   {
  78     number_or_range_parser minus_one ("-1");
  79
  80     SELF_CHECK (!minus_one.finished ());
  81     try
  82       {
  83         minus_one.get_number ();
  84         SELF_CHECK (false);
  85       }
  86     catch (const gdb_exception_error &ex)
  87       {
  88         SELF_CHECK (ex.reason == RETURN_ERROR);
  89         SELF_CHECK (ex.error == GENERIC_ERROR);
  90         SELF_CHECK (strcmp (ex.what (), "negative value") == 0);
  91         SELF_CHECK (strcmp (minus_one.cur_tok (), "-1") == 0);
  92       }
  93   }
  94
  95   /* Test that a - followed by not a number does not give an error.  */
  96   {
  97     number_or_range_parser nan ("-whatever");
  98
  99     SELF_CHECK (nan.finished ());
 100     SELF_CHECK (strcmp (nan.cur_tok (), "-whatever") == 0);
 101   }
 102 }
 103
 104 static void
 105 test_cli_utils ()
 106 {
 107   selftests::cli_utils::test_number_or_range_parser ();
 108 }
 109
 110 }
 111 }
 112
 113 void
 114 _initialize_cli_utils_selftests ()
 115 {
 116   selftests::register_test ("cli_utils",
 117                             selftests::cli_utils::test_cli_utils);
 118 }