src/round-test.h

   1
   2 #ifndef SEEN_ROUND_TEST_H
   3 #define SEEN_ROUND_TEST_H
   4
   5 #include <cxxtest/TestSuite.h>
   6
   7 #include <vector>
   8 #include <round.h>
   9
  10 class RoundTest : public CxxTest::TestSuite
  11 {
  12 public:
  13     struct Case {
  14         double arg0;
  15         double ret;
  16     };
  17
  18     std::vector<Case> nonneg_round_cases;
  19     std::vector<Case> nonpos_round_cases;
  20
  21     RoundTest() :
  22         TestSuite()
  23     {
  24         Case cases[] = {
  25             { 5.0, 5.0 },
  26             { 0.0, 0.0 },
  27             { 5.4, 5.0 },
  28             { 5.6, 6.0 },
  29             { 1e-7, 0.0 },
  30             { 1e7 + .49, 1e7 },
  31             { 1e7 + .51, 1e7 + 1 },
  32             { 1e12 + .49, 1e12 },
  33             { 1e12 + .51, 1e12 + 1 },
  34             { 1e40, 1e40 }
  35         };
  36
  37         for ( size_t i = 0; i < G_N_ELEMENTS(cases); i++ )
  38         {
  39             nonneg_round_cases.push_back( cases[i] );
  40
  41             Case tmp = {-nonneg_round_cases[i].arg0, -nonneg_round_cases[i].ret};
  42             nonpos_round_cases.push_back( tmp );
  43         }
  44     }
  45
  46     virtual ~RoundTest()
  47     {
  48     }
  49
  50     static RoundTest *createSuite() { return new RoundTest(); }
  51     static void destroySuite( RoundTest *suite ) { delete suite; }
  52
  53 // -------------------------------------------------------------------------
  54 // -------------------------------------------------------------------------
  55
  56
  57
  58     void testNonNegRound()
  59     {
  60         for ( size_t i = 0; i < nonneg_round_cases.size(); i++ )
  61         {
  62             double result = Inkscape::round( nonneg_round_cases[i].arg0 );
  63             TS_ASSERT_EQUALS( result, nonneg_round_cases[i].ret );
  64         }
  65     }
  66
  67     void testNonPosRoung()
  68     {
  69         for ( size_t i = 0; i < nonpos_round_cases.size(); i++ )
  70         {
  71             double result = Inkscape::round( nonpos_round_cases[i].arg0 );
  72             TS_ASSERT_EQUALS( result, nonpos_round_cases[i].ret );
  73         }
  74     }
  75
  76 };
  77
  78
  79 #endif // SEEN_ROUND_TEST_H
  80
  81 /*
  82   Local Variables:
  83   mode:c++
  84   c-file-style:"stroustrup"
  85   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  86   indent-tabs-mode:nil
  87   fill-column:99
  88   End:
  89 */
  90 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
  91