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Merged
merged 4 commits into from
Oct 30, 2017
Merged

flatten-array: update tests to v1.1.0 #1046

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fcfa68c
flatten-array: update tests to v1.1.0
AiryShift Oct 26, 2017
4dfcc6d
flatten_array: fix style issue
AiryShift Oct 29, 2017
ea4bfb4
flatten-array: Tweaks for consistency
Oct 30, 2017
96f075c
Merge branch 'master' into update-tests-995
Oct 30, 2017
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29 changes: 18 additions & 11 deletions exercises/flatten-array/flatten_array_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,35 +3,42 @@
from flatten_array import flatten


# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0

class FlattenArrayTests(unittest.TestCase):

def test_no_nesting(self):
self.assertEqual(flatten([0, 1, 2]), [0, 1, 2])

def test_one_level_nesting(self):
self.assertEqual(flatten([0, [1], 2]), [0, 1, 2])

def test_two_level_nesting(self):
self.assertEqual(flatten([0, [1, [2, 3]], [4]]), [0, 1, 2, 3, 4])

def test_empty_nested_lists(self):
self.assertEqual(flatten([[()]]), [])
def test_flatten_integers(self):
inputs = [1, [2, 3, 4, 5, 6, 7], 8]
expected = [1, 2, 3, 4, 5, 6, 7, 8]
self.assertEqual(flatten(inputs), expected)

def test_with_none_values(self):
inputs = [0, 2, [[2, 3], 8, [[100]], None, [[None]]], -2]
expected = [0, 2, 2, 3, 8, 100, -2]
def test_five_level_nesting(self):
inputs = [0, 2, [[2, 3], 8, 100, 4, [[[50]]]], -2]
expected = [0, 2, 2, 3, 8, 100, 4, 50, -2]
self.assertEqual(flatten(inputs), expected)

def test_six_level_nesting(self):
inputs = [1, [2, [[3]], [4, [[5]]], 6, 7], 8]
expected = [1, 2, 3, 4, 5, 6, 7, 8]
self.assertEqual(flatten(inputs), expected)

def test_with_none_values(self):
inputs = [0, 2, [[2, 3], 8, [[100]], None, [[None]]], -2]
expected = [0, 2, 2, 3, 8, 100, -2]
self.assertEqual(flatten(inputs), expected)

def test_all_values_are_none(self):
inputs = [None, [[[None]]], None, None, [[None, None], None], None]
expected = []
self.assertEqual(flatten(inputs), expected)

# Additional tests for this track
def test_empty_nested_lists(self):
self.assertEqual(flatten([[()]]), [])

def test_strings(self):
self.assertEqual(flatten(['0', ['1', '2']]), ['0', '1', '2'])

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