def test_normalize_by_int_spectrum(self):
spectrum = Spectrum(x = numpy.linspace(3000.0, 10000.0, num=10000),
y = numpy.linspace(1e-13, 1e-11, num=10000))
norm_spectrum = spectrum.normalize_by_int()
astlib_spectrum = astsed.SED(wavelength=numpy.linspace(3000.0, 10000.0, num=10000),
flux = numpy.linspace(1e-13, 1e-11, num=10000))
astlib_spectrum.normalise()
self.assertEqual(norm_spectrum.y[200], astlib_spectrum.flux[200])
self.assertAlmostEqual(norm_spectrum.y[200] / norm_spectrum.norm_constant, spectrum.y[200])
