testMd5Sum.cc

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#include <utl/Md5Sum.h>
#include <string>

#include <tst/Verify.h>
#include <cppunit/extensions/HelperMacros.h>

using namespace utl;
using namespace std;
using namespace tst;


class testMd5Sum : public CppUnit::TestFixture {

  CPPUNIT_TEST_SUITE(testMd5Sum);
  CPPUNIT_TEST(testMd5);
  CPPUNIT_TEST_EXCEPTION(testUseFinalized, Md5Sum::WrongStageException);
  CPPUNIT_TEST(testMd5OnFile);
  CPPUNIT_TEST_SUITE_END();

public:

  void setUp() { }

  void tearDown() { }

  string
  MD5(const string& data)
  {
    return Md5Sum(data).GetHexDigest();
  }

  void
  testMd5()
  {
    const char* const pairs[][2] = {
      { "", "d41d8cd98f00b204e9800998ecf8427e" },
      { "a", "0cc175b9c0f1b6a831c399e269772661" },
      { "abc", "900150983cd24fb0d6963f7d28e17f72" },
      { "message digest", "f96b697d7cb7938d525a2f31aaf161d0" },
      { "abcdefghijklmnopqrstuvwxyz", "c3fcd3d76192e4007dfb496cca67e13b" },
      { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
        "d174ab98d277d9f5a5611c2c9f419d9f" },
      { "12345678901234567890123456789012345678901234567890123456789012345678901234567890",
        "57edf4a22be3c955ac49da2e2107b67a" },
      // exactly 63
      { "3.1415926535897932384626433832795028841971693993751058209749445",
        "57c4db5f5fb1bf5f74ff805023238884" },
      // exactly 64
      { "3.14159265358979323846264338327950288419716939937510582097494459",
        "a8faf9a61d25eafea6fdbfd06d05d71b" },
      // exactly 65
      { "3.141592653589793238462643383279502884197169399375105820974944592",
        "f78333b1a39dc28bedda135ffeaf58d6" },
      // exactly 500
      { "3.14159265358979323846264338327950288419716939937510582097494459230781"
        "6406286208998628034825342117067982148086513282306647093844609550582231"
        "7253594081284811174502841027019385211055596446229489549303819644288109"
        "7566593344612847564823378678316527120190914564856692346034861045432664"
        "8213393607260249141273724587006606315588174881520920962829254091715364"
        "3678925903600113305305488204665213841469519415116094330572703657595919"
        "5309218611738193261179310511854807446237996274956735188575272489122793"
        "8183011949129833673362440656643086021394946395224737190702179860943702"
        "7705392171762931767523846748184676694051320005681271452635608277857713"
        "4275778960917363717872146844090122495343014654958537105079227968925892"
        "3542019956112129021960864034418159813629774771309960518707211349999998"
        "3729780499510597317328160963185950244594553469083026425223082533446850"
        "3526193118817101000313783875288658753320838142061717766914730359825349"
        "0428755468731159562863882353787593751957781857780532171226806613001927"
        "876611195909216420199", "02f9a22f0e8d910397c7cf9222a7a94b" }
    };

    CPPUNIT_ASSERT(Verify<Equal>(Md5Sum().GetHexDigest(), string(pairs[0][1])));

    const int n = sizeof(pairs) / sizeof(pairs[0]);

    for (int i = 0; i < n; ++i)
      CPPUNIT_ASSERT(Verify<Equal>(MD5(pairs[i][0]), string(pairs[i][1])));
  }

  void
  testUseFinalized()
  {
    Md5Sum md5;
    md5.GetRawDigest();
    md5.AddData("");
  }

  void
  testMd5OnFile()
  {
    ifstream file(TEST_SOURCE_DIRECTORY "/md5sums.txt");
    CPPUNIT_ASSERT(file.is_open());
    int n = 0;
    string line;
    string text;
    string checksum;
    istringstream is;
    cout << "testing length";
    while (getline(file, line)) {
      is.str(line);
      is.clear();
      if (!(is >> text >> checksum))
        break;
      cout << ' ' << text.length();
      CPPUNIT_ASSERT(Verify<Equal>(MD5(text), checksum));
      ++n;
    }
    cout << endl;
    CPPUNIT_ASSERT(Verify<Equal>(n, 500));
  }

};


CPPUNIT_TEST_SUITE_REGISTRATION(testMd5Sum);