def test_against_fft(self):
""" Test against goold ol' FFT on evenly spaced data """
x = np.linspace(0, 10, num=128)
y = np.sin(2 * np.pi * x)
k = np.fft.fftfreq(y.size)
knfft = nfftfreq(len(x), df=1)
dft = np.fft.fft(y)
from_nfft = nfft(x, y, M=len(x))
def test_shape_odd(self):
""" Test that the nfftfreq function returns expected shape """
freqs = nfftfreq(13)
self.assertTupleEqual(freqs.shape, (13, ))