external/bsd/atf/dist/tools/auto_array_test.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 extern "C" {
  31 #include <sys/types.h>
  32 }
  33
  34 #include <iostream>
  35
  36 #include <atf-c++.hpp>
  37
  38 #include "auto_array.hpp"
  39
  40 // ------------------------------------------------------------------------
  41 // Tests for the "auto_array" class.
  42 // ------------------------------------------------------------------------
  43
  44 class test_array {
  45 public:
  46     int m_value;
  47
  48     static ssize_t m_nblocks;
  49
  50     static
  51     tools::auto_array< test_array >
  52     do_copy(tools::auto_array< test_array >& ta)
  53     {
  54         return tools::auto_array< test_array >(ta);
  55     }
  56
  57     void* operator new(size_t size __attribute__((__unused__)))
  58     {
  59         ATF_FAIL("New called but should have been new[]");
  60         return new int(5);
  61     }
  62
  63     void* operator new[](size_t size)
  64     {
  65         m_nblocks++;
  66         void* mem = ::operator new(size);
  67         std::cout << "Allocated 'test_array' object " << mem << "\n";
  68         return mem;
  69     }
  70
  71     void operator delete(void* mem __attribute__((__unused__)))
  72     {
  73         ATF_FAIL("Delete called but should have been delete[]");
  74     }
  75
  76     void operator delete[](void* mem)
  77     {
  78         std::cout << "Releasing 'test_array' object " << mem << "\n";
  79         if (m_nblocks == 0)
  80             ATF_FAIL("Unbalanced delete[]");
  81         m_nblocks--;
  82         ::operator delete(mem);
  83     }
  84 };
  85
  86 ssize_t test_array::m_nblocks = 0;
  87
  88 ATF_TEST_CASE(auto_array_scope);
  89 ATF_TEST_CASE_HEAD(auto_array_scope)
  90 {
  91     set_md_var("descr", "Tests the automatic scope handling in the "
  92                "auto_array smart pointer class");
  93 }
  94 ATF_TEST_CASE_BODY(auto_array_scope)
  95 {
  96     using tools::auto_array;
  97
  98     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
  99     {
 100         auto_array< test_array > t(new test_array[10]);
 101         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 102     }
 103     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 104 }
 105
 106 ATF_TEST_CASE(auto_array_copy);
 107 ATF_TEST_CASE_HEAD(auto_array_copy)
 108 {
 109     set_md_var("descr", "Tests the auto_array smart pointer class' copy "
 110                "constructor");
 111 }
 112 ATF_TEST_CASE_BODY(auto_array_copy)
 113 {
 114     using tools::auto_array;
 115
 116     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 117     {
 118         auto_array< test_array > t1(new test_array[10]);
 119         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 120
 121         {
 122             auto_array< test_array > t2(t1);
 123             ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 124         }
 125         ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 126     }
 127     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 128 }
 129
 130 ATF_TEST_CASE(auto_array_copy_ref);
 131 ATF_TEST_CASE_HEAD(auto_array_copy_ref)
 132 {
 133     set_md_var("descr", "Tests the auto_array smart pointer class' copy "
 134                "constructor through the auxiliary auto_array_ref object");
 135 }
 136 ATF_TEST_CASE_BODY(auto_array_copy_ref)
 137 {
 138     using tools::auto_array;
 139
 140     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 141     {
 142         auto_array< test_array > t1(new test_array[10]);
 143         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 144
 145         {
 146             auto_array< test_array > t2 = test_array::do_copy(t1);
 147             ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 148         }
 149         ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 150     }
 151     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 152 }
 153
 154 ATF_TEST_CASE(auto_array_get);
 155 ATF_TEST_CASE_HEAD(auto_array_get)
 156 {
 157     set_md_var("descr", "Tests the auto_array smart pointer class' get "
 158                "method");
 159 }
 160 ATF_TEST_CASE_BODY(auto_array_get)
 161 {
 162     using tools::auto_array;
 163
 164     test_array* ta = new test_array[10];
 165     auto_array< test_array > t(ta);
 166     ATF_REQUIRE_EQ(t.get(), ta);
 167 }
 168
 169 ATF_TEST_CASE(auto_array_release);
 170 ATF_TEST_CASE_HEAD(auto_array_release)
 171 {
 172     set_md_var("descr", "Tests the auto_array smart pointer class' release "
 173                "method");
 174 }
 175 ATF_TEST_CASE_BODY(auto_array_release)
 176 {
 177     using tools::auto_array;
 178
 179     test_array* ta1 = new test_array[10];
 180     {
 181         auto_array< test_array > t(ta1);
 182         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 183         test_array* ta2 = t.release();
 184         ATF_REQUIRE_EQ(ta2, ta1);
 185         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 186     }
 187     ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 188     delete [] ta1;
 189 }
 190
 191 ATF_TEST_CASE(auto_array_reset);
 192 ATF_TEST_CASE_HEAD(auto_array_reset)
 193 {
 194     set_md_var("descr", "Tests the auto_array smart pointer class' reset "
 195                "method");
 196 }
 197 ATF_TEST_CASE_BODY(auto_array_reset)
 198 {
 199     using tools::auto_array;
 200
 201     test_array* ta1 = new test_array[10];
 202     test_array* ta2 = new test_array[10];
 203     ATF_REQUIRE_EQ(test_array::m_nblocks, 2);
 204
 205     {
 206         auto_array< test_array > t(ta1);
 207         ATF_REQUIRE_EQ(test_array::m_nblocks, 2);
 208         t.reset(ta2);
 209         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 210         t.reset();
 211         ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 212     }
 213     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 214 }
 215
 216 ATF_TEST_CASE(auto_array_assign);
 217 ATF_TEST_CASE_HEAD(auto_array_assign)
 218 {
 219     set_md_var("descr", "Tests the auto_array smart pointer class' "
 220                "assignment operator");
 221 }
 222 ATF_TEST_CASE_BODY(auto_array_assign)
 223 {
 224     using tools::auto_array;
 225
 226     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 227     {
 228         auto_array< test_array > t1(new test_array[10]);
 229         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 230
 231         {
 232             auto_array< test_array > t2;
 233             t2 = t1;
 234             ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 235         }
 236         ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 237     }
 238     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 239 }
 240
 241 ATF_TEST_CASE(auto_array_assign_ref);
 242 ATF_TEST_CASE_HEAD(auto_array_assign_ref)
 243 {
 244     set_md_var("descr", "Tests the auto_array smart pointer class' "
 245                "assignment operator through the auxiliary auto_array_ref "
 246                "object");
 247 }
 248 ATF_TEST_CASE_BODY(auto_array_assign_ref)
 249 {
 250     using tools::auto_array;
 251
 252     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 253     {
 254         auto_array< test_array > t1(new test_array[10]);
 255         ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 256
 257         {
 258             auto_array< test_array > t2;
 259             t2 = test_array::do_copy(t1);
 260             ATF_REQUIRE_EQ(test_array::m_nblocks, 1);
 261         }
 262         ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 263     }
 264     ATF_REQUIRE_EQ(test_array::m_nblocks, 0);
 265 }
 266
 267 ATF_TEST_CASE(auto_array_access);
 268 ATF_TEST_CASE_HEAD(auto_array_access)
 269 {
 270     set_md_var("descr", "Tests the auto_array smart pointer class' access "
 271                "operator");
 272 }
 273 ATF_TEST_CASE_BODY(auto_array_access)
 274 {
 275     using tools::auto_array;
 276
 277     auto_array< test_array > t(new test_array[10]);
 278
 279     for (int i = 0; i < 10; i++)
 280         t[i].m_value = i * 2;
 281
 282     for (int i = 0; i < 10; i++)
 283         ATF_REQUIRE_EQ(t[i].m_value, i * 2);
 284 }
 285
 286 // ------------------------------------------------------------------------
 287 // Main.
 288 // ------------------------------------------------------------------------
 289
 290 ATF_INIT_TEST_CASES(tcs)
 291 {
 292     // Add the test for the "auto_array" class.
 293     ATF_ADD_TEST_CASE(tcs, auto_array_scope);
 294     ATF_ADD_TEST_CASE(tcs, auto_array_copy);
 295     ATF_ADD_TEST_CASE(tcs, auto_array_copy_ref);
 296     ATF_ADD_TEST_CASE(tcs, auto_array_get);
 297     ATF_ADD_TEST_CASE(tcs, auto_array_release);
 298     ATF_ADD_TEST_CASE(tcs, auto_array_reset);
 299     ATF_ADD_TEST_CASE(tcs, auto_array_assign);
 300     ATF_ADD_TEST_CASE(tcs, auto_array_assign_ref);
 301     ATF_ADD_TEST_CASE(tcs, auto_array_access);
 302 }