from pybind11_tests import chrono as m import datetime def test_chrono_system_clock(): # Get the time from both c++ and datetime date1 = m.test_chrono1() date2 = datetime.datetime.today() # The returned value should be a datetime assert isinstance(date1, datetime.datetime) # The numbers should vary by a very small amount (time it took to execute) diff = abs(date1 - date2) # There should never be a days/seconds difference assert diff.days == 0 assert diff.seconds == 0 # We test that no more than about 0.5 seconds passes here # This makes sure that the dates created are very close to the same # but if the testing system is incredibly overloaded this should still pass assert diff.microseconds < 500000 def test_chrono_system_clock_roundtrip(): date1 = datetime.datetime.today() # Roundtrip the time date2 = m.test_chrono2(date1) # The returned value should be a datetime assert isinstance(date2, datetime.datetime) # They should be identical (no information lost on roundtrip) diff = abs(date1 - date2) assert diff.days == 0 assert diff.seconds == 0 assert diff.microseconds == 0 def test_chrono_system_clock_roundtrip_date(): date1 = datetime.date.today() # Roundtrip the time datetime2 = m.test_chrono2(date1) date2 = datetime2.date() time2 = datetime2.time() # The returned value should be a datetime assert isinstance(datetime2, datetime.datetime) assert isinstance(date2, datetime.date) assert isinstance(time2, datetime.time) # They should be identical (no information lost on roundtrip) diff = abs(date1 - date2) assert diff.days == 0 assert diff.seconds == 0 assert diff.microseconds == 0 # Year, Month & Day should be the same after the round trip assert date1.year == date2.year assert date1.month == date2.month assert date1.day == date2.day # There should be no time information assert time2.hour == 0 assert time2.minute == 0 assert time2.second == 0 assert time2.microsecond == 0 def test_chrono_system_clock_roundtrip_time(): time1 = datetime.datetime.today().time() # Roundtrip the time datetime2 = m.test_chrono2(time1) date2 = datetime2.date() time2 = datetime2.time() # The returned value should be a datetime assert isinstance(datetime2, datetime.datetime) assert isinstance(date2, datetime.date) assert isinstance(time2, datetime.time) # Hour, Minute, Second & Microsecond should be the same after the round trip assert time1.hour == time2.hour assert time1.minute == time2.minute assert time1.second == time2.second assert time1.microsecond == time2.microsecond # There should be no date information (i.e. date = python base date) assert date2.year == 1970 assert date2.month == 1 assert date2.day == 1 def test_chrono_duration_roundtrip(): # Get the difference between two times (a timedelta) date1 = datetime.datetime.today() date2 = datetime.datetime.today() diff = date2 - date1 # Make sure this is a timedelta assert isinstance(diff, datetime.timedelta) cpp_diff = m.test_chrono3(diff) assert cpp_diff.days == diff.days assert cpp_diff.seconds == diff.seconds assert cpp_diff.microseconds == diff.microseconds def test_chrono_duration_subtraction_equivalence(): date1 = datetime.datetime.today() date2 = datetime.datetime.today() diff = date2 - date1 cpp_diff = m.test_chrono4(date2, date1) assert cpp_diff.days == diff.days assert cpp_diff.seconds == diff.seconds assert cpp_diff.microseconds == diff.microseconds def test_chrono_duration_subtraction_equivalence_date(): date1 = datetime.date.today() date2 = datetime.date.today() diff = date2 - date1 cpp_diff = m.test_chrono4(date2, date1) assert cpp_diff.days == diff.days assert cpp_diff.seconds == diff.seconds assert cpp_diff.microseconds == diff.microseconds def test_chrono_steady_clock(): time1 = m.test_chrono5() assert isinstance(time1, datetime.timedelta) def test_chrono_steady_clock_roundtrip(): time1 = datetime.timedelta(days=10, seconds=10, microseconds=100) time2 = m.test_chrono6(time1) assert isinstance(time2, datetime.timedelta) # They should be identical (no information lost on roundtrip) assert time1.days == time2.days assert time1.seconds == time2.seconds assert time1.microseconds == time2.microseconds def test_floating_point_duration(): # Test using a floating point number in seconds time = m.test_chrono7(35.525123) assert isinstance(time, datetime.timedelta) assert time.seconds == 35 assert 525122 <= time.microseconds <= 525123 diff = m.test_chrono_float_diff(43.789012, 1.123456) assert diff.seconds == 42 assert 665556 <= diff.microseconds <= 665557 def test_nano_timepoint(): time = datetime.datetime.now() time1 = m.test_nano_timepoint(time, datetime.timedelta(seconds=60)) assert(time1 == time + datetime.timedelta(seconds=60))