pyodide/packages/pywavelets/test_pywt.py

19 lines
532 B
Python

from pyodide_build.testing import run_in_pyodide
@run_in_pyodide(packages=["pywavelets"])
def test_pywt():
import pywt
import numpy as np
def checkit(a, v):
assert (np.rint(a) == v).all()
x = [3, 7, 1, 1, -2, 5, 4, 6]
cA, cD = pywt.dwt(x, "db2")
w = pywt.Wavelet("sym3")
checkit(pywt.idwt(cA, cD, "db2"), x)
cA, cD = pywt.dwt(x, wavelet=w, mode="periodization")
checkit(pywt.idwt(cA, cD, "sym3", "symmetric"), [1, 1, -2, 5])
checkit(pywt.idwt(cA, cD, "sym3", "periodization"), x)