108 lines
3.0 KiB
Python
108 lines
3.0 KiB
Python
from pybind11_tests import chrono as m
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import datetime
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def test_chrono_system_clock():
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# Get the time from both c++ and datetime
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date1 = m.test_chrono1()
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date2 = datetime.datetime.today()
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# The returned value should be a datetime
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assert isinstance(date1, datetime.datetime)
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# The numbers should vary by a very small amount (time it took to execute)
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diff = abs(date1 - date2)
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# There should never be a days/seconds difference
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assert diff.days == 0
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assert diff.seconds == 0
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# We test that no more than about 0.5 seconds passes here
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# This makes sure that the dates created are very close to the same
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# but if the testing system is incredibly overloaded this should still pass
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assert diff.microseconds < 500000
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def test_chrono_system_clock_roundtrip():
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date1 = datetime.datetime.today()
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# Roundtrip the time
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date2 = m.test_chrono2(date1)
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# The returned value should be a datetime
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assert isinstance(date2, datetime.datetime)
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# They should be identical (no information lost on roundtrip)
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diff = abs(date1 - date2)
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assert diff.days == 0
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assert diff.seconds == 0
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assert diff.microseconds == 0
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def test_chrono_duration_roundtrip():
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# Get the difference between two times (a timedelta)
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date1 = datetime.datetime.today()
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date2 = datetime.datetime.today()
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diff = date2 - date1
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# Make sure this is a timedelta
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assert isinstance(diff, datetime.timedelta)
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cpp_diff = m.test_chrono3(diff)
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assert cpp_diff.days == diff.days
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assert cpp_diff.seconds == diff.seconds
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assert cpp_diff.microseconds == diff.microseconds
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def test_chrono_duration_subtraction_equivalence():
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date1 = datetime.datetime.today()
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date2 = datetime.datetime.today()
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diff = date2 - date1
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cpp_diff = m.test_chrono4(date2, date1)
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assert cpp_diff.days == diff.days
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assert cpp_diff.seconds == diff.seconds
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assert cpp_diff.microseconds == diff.microseconds
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def test_chrono_steady_clock():
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time1 = m.test_chrono5()
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assert isinstance(time1, datetime.timedelta)
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def test_chrono_steady_clock_roundtrip():
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time1 = datetime.timedelta(days=10, seconds=10, microseconds=100)
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time2 = m.test_chrono6(time1)
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assert isinstance(time2, datetime.timedelta)
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# They should be identical (no information lost on roundtrip)
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assert time1.days == time2.days
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assert time1.seconds == time2.seconds
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assert time1.microseconds == time2.microseconds
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def test_floating_point_duration():
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# Test using a floating point number in seconds
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time = m.test_chrono7(35.525123)
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assert isinstance(time, datetime.timedelta)
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assert time.seconds == 35
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assert 525122 <= time.microseconds <= 525123
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diff = m.test_chrono_float_diff(43.789012, 1.123456)
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assert diff.seconds == 42
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assert 665556 <= diff.microseconds <= 665557
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def test_nano_timepoint():
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time = datetime.datetime.now()
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time1 = m.test_nano_timepoint(time, datetime.timedelta(seconds=60))
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assert(time1 == time + datetime.timedelta(seconds=60))
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