def check_1pixshift_i(self):
test_copy1 = self.test_sig_rand_i.copy()
test_copy2 = test_copy1.copy()
FTS.subsampInterp(test_copy1, 1.0, axis=0)
util.shift(test_copy2, 1, axis=0)
assert_array_almost_equal(test_copy2[1:-1,:,:],
test_copy1[1:-1,:,:], decimal=5)
def check_flatshift(self):
flat_sig = self.test_sig_flat.copy()
FTS.subsampInterp(flat_sig, .15)
assert_array_almost_equal(flat_sig, self.test_sig_flat)
