tests/basic-types/floats.vala

   1 void test_double () {
   2         // declaration and initialization
   3         double d = 42d;
   4         assert (d == 42d);
   5
   6         // assignment
   7         d = 23d;
   8         assert (d == 23d);
   9
  10         // access
  11         double e = d;
  12         assert (e == 23d);
  13
  14         // +
  15         d = 42d + 23d;
  16         assert (d == 65d);
  17
  18         // -
  19         d = 42d - 23d;
  20         assert (d == 19d);
  21
  22         // *
  23         d = 42d * 23d;
  24         assert (d == 966d);
  25
  26         // /
  27         d = 42d / 23d;
  28         assert (d > 1.8);
  29         assert (d < 1.9);
  30
  31         // equality and relational
  32         d = 42d;
  33         assert (d == 42d);
  34         assert (d != 50d);
  35         assert (d < 42.5);
  36         assert (!(d < 41.5));
  37         assert (d <= 42d);
  38         assert (!(d <= 41.5));
  39         assert (d >= 42d);
  40         assert (!(d >= 42.5));
  41         assert (d > 41.5);
  42         assert (!(d > 42.5));
  43
  44         // to_string
  45         string s = d.to_string ();
  46         assert (s == "42");
  47
  48         unowned string unparsed;
  49         double.try_parse ("3.45mm", out d, out unparsed);
  50         assert (d == 3.45);
  51         assert (unparsed == "mm");
  52
  53         // ensure that MIN and MAX are valid values
  54         d = double.MIN;
  55         assert (d == double.MIN);
  56         assert (d < double.MAX);
  57         d = double.MAX;
  58         assert (d == double.MAX);
  59         assert (d > double.MIN);
  60
  61         // nullable
  62         double? d2 = 10;
  63         assert (d2 == 10);
  64 }
  65
  66 void main () {
  67         test_double ();
  68 }