contrib/ntp/tests/libntp/g_tstotv.cpp

   1 #include "g_libntptest.h"
   2
   3 extern "C" {
   4 #include "ntp_fp.h"
   5 #include "timevalops.h"
   6 };
   7
   8 class tstotvTest : public libntptest {
   9 protected:
  10         ::testing::AssertionResult IsEqual(const timeval& expected,
  11                                                                            const timeval& actual) {
  12                 if (expected.tv_sec == actual.tv_sec &&
  13                         expected.tv_usec == actual.tv_usec) {
  14                         // Success
  15                         return ::testing::AssertionSuccess();
  16                 } else {
  17                         return ::testing::AssertionFailure()
  18                                 << "expected: " << expected.tv_sec << "."
  19                                 << expected.tv_usec
  20                                 << " but was: " << actual.tv_sec << "."
  21                                 << actual.tv_usec;
  22                 }
  23         }
  24
  25         static const u_long HALF = 2147483648UL;
  26 };
  27
  28 TEST_F(tstotvTest, Seconds) {
  29         const l_fp input = {50, 0}; // 50.0 s
  30         const timeval expected = {50, 0};
  31         timeval actual;
  32
  33         TSTOTV(&input, &actual);
  34
  35         EXPECT_TRUE(IsEqual(expected, actual));
  36 }
  37
  38 TEST_F(tstotvTest, MicrosecondsExact) {
  39         const l_fp input = {50, HALF}; // 10.5 s
  40         const timeval expected = {50, 500000};
  41         timeval actual;
  42
  43         TSTOTV(&input, &actual);
  44
  45         EXPECT_TRUE(IsEqual(expected, actual));
  46
  47 }
  48
  49 TEST_F(tstotvTest, MicrosecondsRounding) {
  50         const l_fp input = {50, 3865471UL}; // Should round to 50.0009
  51         const timeval expected = {50, 900};
  52         timeval actual;
  53
  54         TSTOTV(&input, &actual);
  55
  56         EXPECT_TRUE(IsEqual(expected, actual));
  57 }