Comparison failure in text_axes:test_phase_spectrum_freqs #5525
Description
In #5307, where I am lowering our testing tolerance down to zero, I am discovering a few recent changes that slipped through because the tolerance on our tests was too high.
This test has been broken since at least v1.4.0 (before which I can't build with current Numpys).
BASELINE RESULT:
ACTUAL RESULT:
Test code:
@image_comparison(baseline_images=['phase_spectrum_freqs'],
remove_text=True,
extensions=['png'])
def test_phase_spectrum_freqs():
'''test axes.phase_spectrum with sinusoidal stimuli'''
n = 10000
Fs = 100.
fstims1 = [Fs/4, Fs/5, Fs/11]
NFFT = int(1000 * Fs / min(fstims1))
pad_to = int(2 ** np.ceil(np.log2(NFFT)))
x = np.arange(0, n, 1/Fs)
y = np.zeros(x.size)
for i, fstim1 in enumerate(fstims1):
y += np.sin(fstim1 * x * np.pi * 2) * 10**i
y = y
fig = plt.figure()
ax1 = fig.add_subplot(3, 1, 1)
ax2 = fig.add_subplot(3, 1, 2)
ax3 = fig.add_subplot(3, 1, 3)
spec1, freqs1, line1 = ax1.phase_spectrum(y, Fs=Fs, pad_to=pad_to,
sides='default')
spec2, freqs2, line2 = ax2.phase_spectrum(y, Fs=Fs, pad_to=pad_to,
sides='onesided')
spec3, freqs3, line3 = ax3.phase_spectrum(y, Fs=Fs, pad_to=pad_to,
sides='twosided')
ax1.set_xlabel('')
ax2.set_xlabel('')
ax3.set_xlabel('')
ax1.set_ylabel('')
ax2.set_ylabel('')
ax3.set_ylabel('')
@toddrjen: You appear to have written the test. Any thoughts?