round_ut.cpp 2.3 KB

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  1. #include "round.h"
  2. #include <library/cpp/testing/unittest/registar.h>
  3. #include <util/string/hex.h>
  4. using namespace NMathUdf;
  5. Y_UNIT_TEST_SUITE(TRound) {
  6. Y_UNIT_TEST(Basic) {
  7. double value = 1930.0 / 3361.0;
  8. double result = RoundToDecimal<long double>(value, -3);
  9. double answer = 0.574;
  10. UNIT_ASSERT_VALUES_EQUAL(
  11. HexEncode(&result, sizeof(double)),
  12. HexEncode(&answer, sizeof(double)));
  13. }
  14. Y_UNIT_TEST(Mod) {
  15. UNIT_ASSERT_VALUES_EQUAL(*Mod(-1, 7), 6);
  16. UNIT_ASSERT_VALUES_EQUAL(*Mod(1, 7), 1);
  17. UNIT_ASSERT_VALUES_EQUAL(*Mod(0, 7), 0);
  18. UNIT_ASSERT_VALUES_EQUAL(*Mod(-1, -7), -1);
  19. UNIT_ASSERT_VALUES_EQUAL(*Mod(1, -7), -6);
  20. UNIT_ASSERT_VALUES_EQUAL(*Mod(0, -7), 0);
  21. UNIT_ASSERT_VALUES_EQUAL(*Mod(-15, 7), 6);
  22. UNIT_ASSERT_VALUES_EQUAL(*Mod(15, 7), 1);
  23. UNIT_ASSERT_VALUES_EQUAL(*Mod(14, 7), 0);
  24. UNIT_ASSERT_VALUES_EQUAL(*Mod(-14, 7), 0);
  25. UNIT_ASSERT_VALUES_EQUAL(*Mod(-15, -7), -1);
  26. UNIT_ASSERT_VALUES_EQUAL(*Mod(15, -7), -6);
  27. UNIT_ASSERT_VALUES_EQUAL(*Mod(14, -7), 0);
  28. UNIT_ASSERT_VALUES_EQUAL(*Mod(-14, -7), 0);
  29. UNIT_ASSERT(!Mod(-14, 0));
  30. }
  31. Y_UNIT_TEST(Rem) {
  32. UNIT_ASSERT_VALUES_EQUAL(*Rem(-1, 7), -1);
  33. UNIT_ASSERT_VALUES_EQUAL(*Rem(1, 7), 1);
  34. UNIT_ASSERT_VALUES_EQUAL(*Rem(0, 7), 0);
  35. UNIT_ASSERT_VALUES_EQUAL(*Rem(-1, -7), -1);
  36. UNIT_ASSERT_VALUES_EQUAL(*Rem(1, -7), 1);
  37. UNIT_ASSERT_VALUES_EQUAL(*Rem(0, -7), 0);
  38. UNIT_ASSERT_VALUES_EQUAL(*Rem(-15, 7), -1);
  39. UNIT_ASSERT_VALUES_EQUAL(*Rem(15, 7), 1);
  40. UNIT_ASSERT_VALUES_EQUAL(*Rem(14, 7), 0);
  41. UNIT_ASSERT_VALUES_EQUAL(*Rem(-14, 7), 0);
  42. UNIT_ASSERT_VALUES_EQUAL(*Rem(-15, -7), -1);
  43. UNIT_ASSERT_VALUES_EQUAL(*Rem(15, -7), 1);
  44. UNIT_ASSERT_VALUES_EQUAL(*Rem(14, -7), 0);
  45. UNIT_ASSERT_VALUES_EQUAL(*Rem(-14, -7), 0);
  46. UNIT_ASSERT(!Rem(-14, 0));
  47. }
  48. Y_UNIT_TEST(NearbyInt) {
  49. const i64 maxV = 9223372036854774784ll;
  50. const i64 minV = -9223372036854774784ll;
  51. UNIT_ASSERT_VALUES_EQUAL((i64)(double)(maxV), maxV);
  52. UNIT_ASSERT_VALUES_EQUAL((i64)(double)(minV), minV);
  53. UNIT_ASSERT_VALUES_UNEQUAL((i64)(double)(maxV + 1), maxV + 1);
  54. }
  55. }