def test_merge_with_children():
fib_heapOdd = module.FibonacciHeap()
fib_heapEven = module.FibonacciHeap()
try:
fib_heapOdd.insert(3)
fib_heapOdd.insert(7)
fib_heapOdd.insert(1)
fib_heapOdd.insert(5)
fib_heapOdd.insert(11)
# consolidate will create children when needed
fib_heapOdd.consolidate()
fib_heapOdd.display()
fib_heapEven.insert(8)
fib_heapEven.insert(2)
fib_heapEven.insert(4)
# consolidate will create children when needed
fib_heapEven.consolidate()
fib_heapEven.display()
fib_heapEven.merge(fib_heapOdd)
fib_heapEven.display()
assert (fib_heapEven.size == 8)
assert (fib_heapEven.find_min() == 1)
except Exception as err:
print("ERROR: test_merge_with_children", err)
return False
else:
print("OK: test_merge_with_children")
return True
def test_merge():
fib_heapOdd = module.FibonacciHeap()
fib_heapEven = module.FibonacciHeap()
try:
fib_heapOdd.insert(3)
fib_heapOdd.insert(7)
fib_heapOdd.insert(1)
fib_heapOdd.insert(5)
fib_heapOdd.insert(11)
fib_heapOdd.display()
fib_heapEven.insert(8)
fib_heapEven.insert(2)
fib_heapEven.insert(4)
fib_heapEven.display()
fib_heapEven.merge(fib_heapOdd)
fib_heapEven.display()
assert (fib_heapEven.size == 8)
assert (fib_heapEven.find_min() == 1)
except Exception as err:
print("ERROR: test_merge", err)
return False
else:
print("OK: test_merge")
return True
def test_heap():
fib_heap = module.FibonacciHeap()
try:
fib_heap.insert(5)
fib_heap.insert(1)
fib_heap.insert(10)
fib_heap.insert(0)
fib_heap.insert(42)
fib_heap.insert(15)
fib_heap.insert(7)
fib_heap.insert(19)
fib_heap.insert(20)
fib_heap.insert(2)
fib_heap.insert(84)
fib_heap.insert(50)
while True:
fib_heap.display()
node = fib_heap.delete_min()
if node is None:
break
except Exception as err:
print("ERROR: test_heap", err)
return False
else:
print("OK: test_heap")
return True
def test_create():
try:
assert module.FibonacciHeap() is not None
except Exception:
print("ERROR test_create")
return False
else:
print("OK test_create")
return True
def test_min_of_0():
fib_heap = module.FibonacciHeap()
try:
assert (fib_heap.find_min() is None)
except Exception:
print("ERROR: test_min_of_0")
return False
else:
print("OK: test_min_of_0")
return True
def test_insert_string():
fib_heap = module.FibonacciHeap()
try:
fib_heap.insert("abc")
except ValueError:
print("OK: test_insert_string")
return False
else:
print("ERROR: test_insert_string")
return True
def test_insert_1():
fib_heap = module.FibonacciHeap()
try:
fib_heap.insert(5)
except Exception:
print("ERROR: test_insert_1")
return False
else:
print("OK: test_insert_1")
return True
def test_min_of_1():
fib_heap = module.FibonacciHeap()
try:
fib_heap.insert(1)
assert (fib_heap.find_min() == 1)
except Exception:
print("ERROR: test_min_of_1")
return False
else:
print("OK: test_min_of_1")
return True
def test_merge_small():
fib_heap1 = module.FibonacciHeap()
fib_heap2 = module.FibonacciHeap()
try:
fib_heap1.insert(5)
fib_heap1.insert(1)
fib_heap1.insert(10)
fib_heap1.display()
fib_heap2.insert(3)
fib_heap2.display()
fib_heap2.merge(fib_heap1)
fib_heap2.display()
assert (fib_heap2.size == 4)
assert (fib_heap2.find_min() == 1)
except Exception as err:
print("ERROR: test_merge_small", err)
return False
else:
print("OK: test_merge_small")
return True
def test_merge_None():
fib_heap1 = module.FibonacciHeap()
try:
fib_heap1.insert(5)
fib_heap1.insert(1)
fib_heap1.insert(10)
fib_heap1.display()
fib_heap1.merge(None)
assert (fib_heap1.size == 3)
except Exception as err:
print("ERROR: test_merge_None", err)
return False
else:
print("OK: test_merge_None")
return True
def test_min_of_7():
fib_heap = module.FibonacciHeap()
try:
fib_heap.insert(4)
fib_heap.insert(3)
fib_heap.insert(7)
fib_heap.insert(5)
fib_heap.insert(2)
fib_heap.insert(1)
fib_heap.insert(10)
fib_heap.display()
assert (fib_heap.find_min() == 1)
except Exception:
print("ERROR: test_min_of_7")
return False
else:
print("OK: test_min_of_7")
return True
def test_extract_of_3():
fib_heap = module.FibonacciHeap()
try:
fib_heap.insert(5)
fib_heap.insert(2)
fib_heap.insert(8)
fib_heap.display()
assert (fib_heap.find_min() == 2)
assert (fib_heap.delete_min() == 2)
fib_heap.display()
assert (fib_heap.size == 2)
assert (fib_heap.min_node is not None)
except Exception as err:
print("ERROR: test_extract_of_3", err)
return False
else:
print("OK: test_extract_of_3")
return True
