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test_slicetools.py
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/
test_slicetools.py
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import numpy as np
from pygsti.tools.slicetools import *
from ..util import BaseCase
N = 100
slices = []
for i in range(1, N):
for j in range(1, N):
for k in [1, 2]:
slices.append(slice(i, j, k))
class SliceToolsTester(BaseCase):
def test_length(self):
for s in slices:
length(s)
self.assertEqual(length(slice(10)), 0)
self.assertEqual(length(slice(1, 10)), 9)
def test_indices(self):
for s in slices:
indices(s)
self.assertEqual(indices(slice(10)), list(range(10)))
def test_intersect(self):
self.assertEqual(intersect(slice(None, 10, 1), slice(1, 10, 1)), slice(1,10,1))
self.assertEqual(intersect(slice(1, 10, 1), slice(None, 10, 1)), slice(1,10,1))
self.assertEqual(intersect(slice(1, None, 1), slice(1, 10, 1)), slice(1,10,1))
self.assertEqual(intersect(slice(1, 10, 1), slice(1, None, 1)), slice(1,10,1))
self.assertEqual(intersect(slice(10, -10, 1), slice(10, -10, 1)), slice(10,10,1))
def test_list_to_slice(self):
self.assertEqual(list_to_slice([]), slice(0, 0))
self.assertEqual(list_to_slice([1, 2, 3, 4]), slice(1, 5))
self.assertEqual(list_to_slice(slice(0, 4)), slice(0, 4))
with self.assertRaises(ValueError):
list_to_slice([0, 1, 2, 3, 10]) # doesn't correspond to a slice
def test_asarray(self):
self.assertArraysAlmostEqual(to_array(slice(0, 10)), np.arange(10))
self.assertArraysAlmostEqual(to_array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]), np.arange(10))