def test_timeintervaltools_TimeInterval_shift_by_rational_01(): r'''TimeInterval.shift_by_rational returns a new TimeInterval instance unless offset is zero. ''' i1 = TimeInterval(3, 23) i2 = i1.shift_by_rational(1) assert i1 != i2 i2 = i1.shift_by_rational(0) assert i1 == i2
def test_timeintervaltools_TimeInterval_shift_by_rational_03(): r'''TimeIntervals can be shifted by fractions. ''' i1 = TimeInterval(3, 23) i2 = i1.shift_by_rational(Fraction(1, 5)) assert i2.start_offset == Fraction(16, 5) assert i2.duration == i1.duration
def test_timeintervaltools_TimeInterval_shift_by_rational_02(): r'''TimeIntervals can be shifted by ints. ''' i1 = TimeInterval(3, 23) i2 = i1.shift_by_rational(2) assert i2.start_offset == 5 assert i2.duration == i1.duration