sal/qa/rtl/crc32/rtl_crc32.cxx

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  30
  31
  32 // MARKER(update_precomp.py): autogen include statement, do not remove
  33 #include "precompiled_sal.hxx"
  34 // autogenerated file with codegen.pl
  35
  36 #include <cppunit/simpleheader.hxx>
  37 #include <rtl/crc.h>
  38
  39 namespace rtl_CRC32
  40 {
  41
  42 class test : public CppUnit::TestFixture
  43 {
  44 public:
  45     // initialise your test code values here.
  46     void setUp()
  47     {
  48     }
  49
  50     void tearDown()
  51     {
  52     }
  53
  54
  55     // insert your test code here.
  56     void rtl_crc32_001()
  57     {
  58         // this is demonstration code
  59         // CPPUNIT_ASSERT_MESSAGE("a message", 1 == 1);
  60
  61         sal_uInt32 nCRC = 0;
  62
  63         char buf[] = {0};
  64         int num = 0;
  65
  66         nCRC = rtl_crc32(nCRC, buf, num);
  67
  68         CPPUNIT_ASSERT_MESSAGE("empty crc buffer", nCRC == 0);
  69     }
  70
  71     void rtl_crc32_002()
  72     {
  73         sal_uInt32 nCRC = 0;
  74
  75         char buf[] = {0,0};
  76         int num = sizeof(buf);
  77
  78         nCRC = rtl_crc32(nCRC, buf, num);
  79
  80         CPPUNIT_ASSERT_MESSAGE("buffer contain 2 empty bytes, crc is zero", nCRC != 0);
  81     }
  82
  83     void rtl_crc32_002_1()
  84     {
  85         sal_uInt32 nCRC = 0;
  86
  87         char buf[] = {0,0,0};
  88         int num = sizeof(buf);
  89
  90         nCRC = rtl_crc32(nCRC, buf, num);
  91
  92         CPPUNIT_ASSERT_MESSAGE("buffer contain 3 empty bytes, crc is zero", nCRC != 0);
  93     }
  94
  95     /**
  96      * crc32 check:
  97      * Build checksum on two buffers with same size but different content,
  98      * the result (crc32 checksum) must differ
  99      */
 100
 101     void rtl_crc32_003()
 102     {
 103         sal_uInt32 nCRC1 = 0;
 104         char buf1[] = {2};
 105         int num1 = sizeof(buf1);
 106
 107         nCRC1 = rtl_crc32(nCRC1, buf1, num1);
 108
 109         sal_uInt32 nCRC2 = 0;
 110         char buf2[] = {3};
 111         int num2 = sizeof(buf2);
 112
 113         nCRC2 = rtl_crc32(nCRC2, buf2, num2);
 114
 115         CPPUNIT_ASSERT_MESSAGE("checksum should differ for buf1 and buf2", nCRC1 != nCRC2);
 116     }
 117
 118     /** check if the crc32 only use as much values, as given
 119      *
 120      */
 121     void rtl_crc32_003_1()
 122     {
 123         sal_uInt32 nCRC1 = 0;
 124         char buf1[] = {2,1};
 125         int num1 = sizeof(buf1) - 1;
 126
 127         nCRC1 = rtl_crc32(nCRC1, buf1, num1);
 128
 129         sal_uInt32 nCRC2 = 0;
 130         char buf2[] = {2,2};
 131         int num2 = sizeof(buf2) - 1;
 132
 133         nCRC2 = rtl_crc32(nCRC2, buf2, num2);
 134
 135         CPPUNIT_ASSERT_MESSAGE("checksum leave it's bounds", nCRC1 == nCRC2);
 136     }
 137
 138     /** check if the crc32 differ at same content in reverse order
 139      *
 140      */
 141     void rtl_crc32_003_2()
 142     {
 143         sal_uInt32 nCRC1 = 0;
 144         char buf1[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
 145         int num1 = sizeof(buf1);
 146
 147         nCRC1 = rtl_crc32(nCRC1, buf1, num1);
 148
 149         sal_uInt32 nCRC2 = 0;
 150         char buf2[] = {20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0};
 151         int num2 = sizeof(buf2);
 152
 153         nCRC2 = rtl_crc32(nCRC2, buf2, num2);
 154
 155         CPPUNIT_ASSERT_MESSAGE("checksum should differ", nCRC1 != nCRC2);
 156     }
 157
 158
 159
 160     // Change the following lines only, if you add, remove or rename
 161     // member functions of the current class,
 162     // because these macros are need by auto register mechanism.
 163
 164     CPPUNIT_TEST_SUITE(test);
 165     CPPUNIT_TEST(rtl_crc32_001);
 166     CPPUNIT_TEST(rtl_crc32_002);
 167     CPPUNIT_TEST(rtl_crc32_002_1);
 168     CPPUNIT_TEST(rtl_crc32_003);
 169     CPPUNIT_TEST(rtl_crc32_003_1);
 170     CPPUNIT_TEST(rtl_crc32_003_2);
 171     CPPUNIT_TEST_SUITE_END();
 172 }; // class test
 173
 174 // -----------------------------------------------------------------------------
 175 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION(rtl_CRC32::test, "rtl_crc32");
 176 } // namespace rtl_CRC32
 177
 178
 179 // -----------------------------------------------------------------------------
 180
 181 // this macro creates an empty function, which will called by the RegisterAllFunctions()
 182 // to let the user the possibility to also register some functions by hand.
 183 NOADDITIONAL;
 184