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test_iterables.py
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from algorithms.iterables import (
convolved_1d, convolved_2d
)
import itertools
import unittest
class TestConvolved1D(unittest.TestCase):
"""Tests copied from:
- https://github.com/guillaume-chevalier/python-conv-lib/blob/master/conv/tests/test_convolved_1d.py
- MIT License, Copyright (c) 2018 Guillaume Chevalier
"""
def test_trivial_loop(self):
expected = tuple(range(7))
result = []
for kernel_hover in convolved_1d(expected, kernel_size=1, padding=0, stride=1):
result.append(*kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_for_with_stride_two(self):
expected = tuple(range(0, 7, 2))
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=1, padding=0, stride=2):
result.append(*kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_for_with_padding_one(self):
expected = tuple([42] + list(range(0, 7)) + [42])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=1, padding=1, stride=1, default_value=42):
result.append(*kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_two(self):
expected = tuple([a, b] for a, b in zip(list(range(0, 6)), list(range(1, 7))))
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=2, padding=0, stride=1):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_two_and_stride_two(self):
expected = ([0, 1], [2, 3], [4, 5], [6, None])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=2, padding=0, stride=2):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_two_and_stride_two_and_padding_two(self):
expected = ([None, None], [0, 1], [2, 3], [4, 5], [6, None], [None, None])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=2, padding=2, stride=2):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_two_and_stride_two_and_padding_three(self):
expected = ([None, None], [None, 0], [1, 2], [3, 4], [5, 6], [None, None], [None, None])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=2, padding=3, stride=2):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_three_and_stride_two_and_padding_two(self):
expected = ([None, None, 0], [0, 1, 2], [2, 3, 4], [4, 5, 6], [6, None, None])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=3, padding=2, stride=2):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_two_and_stride_three_and_padding_two(self):
expected = ([None, None], [1, 2], [4, 5], [None, None])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=2, padding=2, stride=3):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
def test_seven_kernel_of_three_and_stride_three_and_padding_three(self):
expected = ([None, None, None], [0, 1, 2], [3, 4, 5], [6, None, None], [None, None, None])
result = []
for kernel_hover in convolved_1d(list(range(7)), kernel_size=3, padding=3, stride=3):
result.append(kernel_hover)
result = tuple(result)
self.assertEqual(expected, result)
class TestConvolved2D(unittest.TestCase):
"""Tests copied from:
- https://github.com/guillaume-chevalier/python-conv-lib/blob/master/conv/tests/test_convolved_1d.py
- MIT License, Copyright (c) 2018 Guillaume Chevalier
"""
def test_trivial_1x1_loop(self):
base = tuple(tuple(range(i ** 2, 7 + i ** 2)) for i in range(7))
expected = tuple(([i],) for i in itertools.chain(*base))
result = []
for kernel_hover in convolved_2d(base, kernel_size=1, padding=0, stride=1):
result.append(tuple(kernel_hover))
result = tuple(result)
self.assertEqual(expected, result)
def test_simple_2x2_loop_on_3x2(self):
base = [
[1, 2],
[3, 4],
[5, 6]
]
expected = (
(
[1, 2],
[3, 4]
), (
[3, 4],
[5, 6]
)
)
result = []
for kernel_hover in convolved_2d(base, kernel_size=2, padding=0, stride=1):
result.append(tuple(kernel_hover))
result = tuple(result)
print(result)
print(expected)
self.assertEqual(expected, result)
if __name__ == "__main__":
unittest.main()