def test_ifft_pattern_real(self, shift):
# Odd second dimension becomes even with only real valued FFT
p = np.random.random((101, 100))
p_fft = fft(p, shift=shift, real_fft_only=False)
p_ifft = ifft(p_fft, shift=shift, real_fft_only=False)
p_rfft = fft(p, shift=shift, real_fft_only=True)
p_irfft = ifft(p_rfft, shift=shift, real_fft_only=True)
assert p_ifft.shape == p.shape
assert p_irfft.shape == p.shape
assert np.allclose(p_ifft, p_irfft)
def test_ifft_pattern(self, shift):
p = np.random.random((101, 101))
p_fft = fft(p, shift=shift)
p_ifft = ifft(p_fft, shift=shift)
assert np.allclose(p_ifft, p)