gcc/typed-splay-tree.c

   1 /* Selftests for typed-splay-tree.h.
   2    Copyright (C) 2016-2021 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #include "config.h"
  21 #include "system.h"
  22 #include "coretypes.h"
  23 #include "typed-splay-tree.h"
  24 #include "selftest.h"
  25
  26 #if CHECKING_P
  27
  28 namespace selftest {
  29
  30 /* Callback for use by test_str_to_int.  */
  31
  32 static int
  33 append_cb (const char *, int value, void *user_data)
  34 {
  35   auto_vec <int> *vec = (auto_vec <int> *)user_data;
  36   vec->safe_push (value);
  37   return 0;
  38 }
  39
  40 /* Test of typed_splay_tree <const char *, int>.  */
  41
  42 static void
  43 test_str_to_int ()
  44 {
  45   typed_splay_tree <const char *, int> t (strcmp, NULL, NULL);
  46
  47   t.insert ("a", 1);
  48   t.insert ("b", 2);
  49   t.insert ("c", 3);
  50   t.insert ("d", 4);
  51
  52   t.remove ("d");
  53
  54   ASSERT_EQ (1, t.lookup ("a"));
  55   ASSERT_EQ (2, t.lookup ("b"));
  56   ASSERT_EQ (3, t.lookup ("c"));
  57
  58   ASSERT_EQ (2, t.predecessor ("c"));
  59   ASSERT_EQ (3, t.successor ("b"));
  60   ASSERT_EQ (1, t.min ());
  61   ASSERT_EQ (3, t.max ());
  62
  63   /* Test foreach by appending to a vec, and verifying the vec.  */
  64   auto_vec <int> v;
  65   t.foreach (append_cb, &v);
  66   ASSERT_EQ (3, v.length ());
  67   ASSERT_EQ (1, v[0]);
  68   ASSERT_EQ (2, v[1]);
  69   ASSERT_EQ (3, v[2]);
  70 }
  71
  72 /* Run all of the selftests within this file.  */
  73
  74 void
  75 typed_splay_tree_c_tests ()
  76 {
  77   test_str_to_int ();
  78 }
  79
  80 } // namespace selftest
  81
  82 #endif /* #if CHECKING_P */