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from unittest import TestCase
import numpy as np
from pyecsca.sca import (
Trace,
absolute,
invert,
threshold,
rolling_mean,
offset,
recenter,
normalize,
normalize_wl,
)
class ProcessTests(TestCase):
def setUp(self):
self._trace = Trace(np.array([30, -60, 145, 247], dtype=np.dtype("i2")), None)
def test_absolute(self):
result = absolute(self._trace)
self.assertIsNotNone(result)
self.assertEqual(result.samples[1], 60)
def test_invert(self):
result = invert(self._trace)
self.assertIsNotNone(result)
np.testing.assert_equal(result.samples, [-30, 60, -145, -247])
def test_threshold(self):
result = threshold(self._trace, 128)
self.assertIsNotNone(result)
self.assertEqual(result.samples[0], 0)
self.assertEqual(result.samples[2], 1)
def test_rolling_mean(self):
result = rolling_mean(self._trace, 2)
self.assertIsNotNone(result)
self.assertEqual(len(result.samples), 3)
self.assertEqual(result.samples[0], -15)
self.assertEqual(result.samples[1], 42)
self.assertEqual(result.samples[2], 196)
def test_offset(self):
result = offset(self._trace, 5)
self.assertIsNotNone(result)
np.testing.assert_equal(
result.samples, np.array([35, -55, 150, 252], dtype=np.dtype("i2"))
)
def test_recenter(self):
self.assertIsNotNone(recenter(self._trace))
def test_normalize(self):
result = normalize(self._trace)
self.assertIsNotNone(result)
def test_normalize_wl(self):
result = normalize_wl(self._trace)
self.assertIsNotNone(result)
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