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1 /* Unit tests for hash-map.h.
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131
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2 Copyright (C) 2015-2018 Free Software Foundation, Inc.
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111
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #include "config.h"
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21 #include "system.h"
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22 #include "coretypes.h"
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23 #include "tm.h"
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24 #include "opts.h"
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25 #include "hash-set.h"
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26 #include "fixed-value.h"
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27 #include "alias.h"
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28 #include "flags.h"
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29 #include "symtab.h"
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30 #include "tree-core.h"
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31 #include "stor-layout.h"
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32 #include "tree.h"
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33 #include "stringpool.h"
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34 #include "selftest.h"
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35
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36 #if CHECKING_P
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37
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38 namespace selftest {
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39
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40 /* Construct a hash_map <const char *, int> and verify that
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41 various operations work correctly. */
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42
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43 static void
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44 test_map_of_strings_to_int ()
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45 {
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46 hash_map <const char *, int> m;
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47
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48 const char *ostrich = "ostrich";
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49 const char *elephant = "elephant";
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50 const char *ant = "ant";
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51 const char *spider = "spider";
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52 const char *millipede = "Illacme plenipes";
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53 const char *eric = "half a bee";
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54
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55 /* A fresh hash_map should be empty. */
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56 ASSERT_EQ (0, m.elements ());
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57 ASSERT_EQ (NULL, m.get (ostrich));
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58
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59 /* Populate the hash_map. */
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60 ASSERT_EQ (false, m.put (ostrich, 2));
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61 ASSERT_EQ (false, m.put (elephant, 4));
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62 ASSERT_EQ (false, m.put (ant, 6));
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63 ASSERT_EQ (false, m.put (spider, 8));
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64 ASSERT_EQ (false, m.put (millipede, 750));
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65 ASSERT_EQ (false, m.put (eric, 3));
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66
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67 /* Verify that we can recover the stored values. */
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68 ASSERT_EQ (6, m.elements ());
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69 ASSERT_EQ (2, *m.get (ostrich));
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70 ASSERT_EQ (4, *m.get (elephant));
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71 ASSERT_EQ (6, *m.get (ant));
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72 ASSERT_EQ (8, *m.get (spider));
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73 ASSERT_EQ (750, *m.get (millipede));
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74 ASSERT_EQ (3, *m.get (eric));
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75
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76 /* Verify removing an item. */
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77 m.remove (eric);
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78 ASSERT_EQ (5, m.elements ());
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79 ASSERT_EQ (NULL, m.get (eric));
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80 }
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81
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82 /* Run all of the selftests within this file. */
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83
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84 void
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85 hash_map_tests_c_tests ()
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86 {
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87 test_map_of_strings_to_int ();
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88 }
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89
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90 } // namespace selftest
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91
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92 #endif /* CHECKING_P */
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