41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
import unittest
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from flatten_array import flatten
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class FlattenArrayTests(unittest.TestCase):
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def test_no_nesting(self):
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self.assertEqual(flatten([0, 1, 2]), [0, 1, 2])
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def test_one_level_nesting(self):
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self.assertEqual(flatten([0, [1], 2]), [0, 1, 2])
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def test_two_level_nesting(self):
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self.assertEqual(flatten([0, [1, [2, 3]], [4]]), [0, 1, 2, 3, 4])
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def test_empty_nested_lists(self):
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self.assertEqual(flatten([[()]]), [])
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def test_with_none_values(self):
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inputs = [0, 2, [[2, 3], 8, [[100]], None, [[None]]], -2]
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expected = [0, 2, 2, 3, 8, 100, -2]
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self.assertEqual(flatten(inputs), expected)
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def test_six_level_nesting(self):
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inputs = [1, [2, [[3]], [4, [[5]]], 6, 7], 8]
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expected = [1, 2, 3, 4, 5, 6, 7, 8]
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self.assertEqual(flatten(inputs), expected)
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def test_all_values_are_none(self):
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inputs = [None, [[[None]]], None, None, [[None, None], None], None]
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expected = []
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self.assertEqual(flatten(inputs), expected)
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def test_strings(self):
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self.assertEqual(flatten(['0', ['1', '2']]), ['0', '1', '2'])
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if __name__ == '__main__':
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unittest.main()
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