from tantri.dipoles import Dipole, DipoleTimeSeries
import numpy


def test_dipoles_1(snapshot):
	d1 = Dipole(numpy.array([0, 0, 10]), numpy.array([5, 3, 2]), 15)
	d2 = Dipole(numpy.array([0, 0, 10]), numpy.array([-2, 3, 2]), 0.1)
	d3 = Dipole(numpy.array([0, 0, 10]), numpy.array([2, 1, 2]), 6)
	d4 = Dipole(numpy.array([0, 0, 10]), numpy.array([-5, -5, 2]), 50)

	ts_gen = DipoleTimeSeries([d1, d2, d3, d4], 0.001)
	time_series = [ts_gen.transition() for i in range(20)]

	assert time_series == snapshot