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#273: Remove nose dependency for stacks_queues/ (#276)

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This commit is contained in:
Donne Martin
2020-07-08 19:57:55 -04:00
committed by GitHub
parent 0e7ed80228
commit 139e157250
23 changed files with 290 additions and 373 deletions
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30
stacks_queues/stack/test_stack.py
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@@ -1,35 +1,35 @@
from nose.tools import assert_equal
import unittest
class TestStack(object):
class TestStack(unittest.TestCase):
# TODO: It would be better if we had unit tests for each
# method in addition to the following end-to-end test
def test_end_to_end(self):
print('Test: Empty stack')
stack = Stack()
assert_equal(stack.peek(), None)
assert_equal(stack.pop(), None)
self.assertEqual(stack.peek(), None)
self.assertEqual(stack.pop(), None)
print('Test: One element')
top = Node(5)
stack = Stack(top)
assert_equal(stack.pop(), 5)
assert_equal(stack.peek(), None)
self.assertEqual(stack.pop(), 5)
self.assertEqual(stack.peek(), None)
print('Test: More than one element')
stack = Stack()
stack.push(1)
stack.push(2)
stack.push(3)
assert_equal(stack.pop(), 3)
assert_equal(stack.peek(), 2)
assert_equal(stack.pop(), 2)
assert_equal(stack.peek(), 1)
assert_equal(stack.is_empty(), False)
assert_equal(stack.pop(), 1)
assert_equal(stack.peek(), None)
assert_equal(stack.is_empty(), True)
self.assertEqual(stack.pop(), 3)
self.assertEqual(stack.peek(), 2)
self.assertEqual(stack.pop(), 2)
self.assertEqual(stack.peek(), 1)
self.assertEqual(stack.is_empty(), False)
self.assertEqual(stack.pop(), 1)
self.assertEqual(stack.peek(), None)
self.assertEqual(stack.is_empty(), True)
print('Success: test_end_to_end')
@@ -40,4 +40,4 @@ def main():
if __name__ == '__main__':
main()
main()