gdb/unittests/format_pieces-selftests.c

   1 /* Self tests for format_pieces for GDB, the GNU debugger.
   2
   3    Copyright (C) 2018-2019 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/format.h"
  22 #include "gdbsupport/selftest.h"
  23
  24 namespace selftests {
  25 namespace format_pieces {
  26
  27 /* Verify that parsing STR gives pieces equal to EXPECTED_PIECES.  */
  28
  29 static void
  30 check (const char *str, const std::vector<format_piece> &expected_pieces)
  31 {
  32   ::format_pieces pieces (&str);
  33
  34   SELF_CHECK ((pieces.end () - pieces.begin ()) == expected_pieces.size ());
  35   SELF_CHECK (std::equal (pieces.begin (), pieces.end (),
  36                           expected_pieces.begin ()));
  37 }
  38
  39 static void
  40 test_escape_sequences ()
  41 {
  42   check ("This is an escape sequence: \\e",
  43     {
  44       format_piece ("This is an escape sequence: \e", literal_piece),
  45     });
  46 }
  47
  48 static void
  49 test_format_specifier ()
  50 {
  51   /* The format string here ends with a % sequence, to ensure we don't
  52      see a trailing empty literal piece.  */
  53   check ("Hello %d%llx%%d%d", /* ARI: %ll */
  54     {
  55       format_piece ("Hello ", literal_piece),
  56       format_piece ("%d", int_arg),
  57       format_piece ("%llx", long_long_arg), /* ARI: %ll */
  58       format_piece ("%%d", literal_piece),
  59       format_piece ("%d", int_arg),
  60     });
  61 }
  62
  63 static void
  64 run_tests ()
  65 {
  66   test_escape_sequences ();
  67   test_format_specifier ();
  68 }
  69
  70 } /* namespace format_pieces */
  71 } /* namespace selftests */
  72
  73 void
  74 _initialize_format_pieces_selftests ()
  75 {
  76   selftests::register_test ("format_pieces",
  77                             selftests::format_pieces::run_tests);
  78 }