mirror of
https://github.com/donnemartin/interactive-coding-challenges.git
synced 2024-03-22 13:11:13 +08:00
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
from nose.tools import assert_equal
|
|
|
|
|
|
class TestMinHeap(object):
|
|
|
|
def test_min_heap(self):
|
|
heap = MinHeap()
|
|
assert_equal(heap.peek_min(), None)
|
|
assert_equal(heap.extract_min(), None)
|
|
heap.insert(20)
|
|
assert_equal(heap.array[0], 20)
|
|
heap.insert(5)
|
|
assert_equal(heap.array[0], 5)
|
|
assert_equal(heap.array[1], 20)
|
|
heap.insert(15)
|
|
assert_equal(heap.array[0], 5)
|
|
assert_equal(heap.array[1], 20)
|
|
assert_equal(heap.array[2], 15)
|
|
heap.insert(22)
|
|
assert_equal(heap.array[0], 5)
|
|
assert_equal(heap.array[1], 20)
|
|
assert_equal(heap.array[2], 15)
|
|
assert_equal(heap.array[3], 22)
|
|
heap.insert(40)
|
|
assert_equal(heap.array[0], 5)
|
|
assert_equal(heap.array[1], 20)
|
|
assert_equal(heap.array[2], 15)
|
|
assert_equal(heap.array[3], 22)
|
|
assert_equal(heap.array[4], 40)
|
|
heap.insert(3)
|
|
assert_equal(heap.array[0], 3)
|
|
assert_equal(heap.array[1], 20)
|
|
assert_equal(heap.array[2], 5)
|
|
assert_equal(heap.array[3], 22)
|
|
assert_equal(heap.array[4], 40)
|
|
assert_equal(heap.array[5], 15)
|
|
mins = []
|
|
while heap:
|
|
mins.append(heap.extract_min())
|
|
assert_equal(mins, [3, 5, 15, 20, 22, 40])
|
|
print('Success: test_min_heap')
|
|
|
|
|
|
def main():
|
|
test = TestMinHeap()
|
|
test.test_min_heap()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main() |