def test_clear(self):
lst = AvlTreeList()
for i in range(20):
lst.append(i * i)
lst.clear()
self.assertEqual(0, len(lst))
lst.append(-1)
lst.append(-8)
lst.append(-27)
self.assertEqual(3, len(lst))
self.assertEqual(-1, lst[0])
self.assertEqual(-8, lst[1])
self.assertEqual(-27, lst[2])
def test_clear(self): lst = AvlTreeList() for i in range(20): lst.append(i * i) lst.clear() self.assertEqual(0, len(lst)) lst.append(- 1) lst.append(- 8) lst.append(-27) self.assertEqual(3, len(lst)) self.assertEqual(- 1, lst[0]) self.assertEqual(- 8, lst[1]) self.assertEqual(-27, lst[2])
def test_against_python_list_randomly(self):
ITERATIONS = 3000
list0 = []
list1 = AvlTreeList()
length = 0
for i in range(ITERATIONS):
op = random.randrange(100)
if op < 1: # Clear
list1.check_structure()
list0 = []
list1.clear()
length = 0
elif op < 2: # Set
if length > 0:
index = random.randint(0, length - 1)
val = random.randrange(100000)
list0[index] = val
list1[index] = val
elif op < 30: # Random insertion
n = random.randint(1, 100)
for j in range(n):
index = random.randint(0, length)
val = random.randrange(100000)
list0.insert(index, val)
list1.insert(index, val)
length += 1
elif op < 50: # Ascending insertion
n = random.randint(1, 100)
offset = random.randint(0, length)
for j in range(n):
val = random.randrange(100000)
list0.insert(offset + j, val)
list1.insert(offset + j, val)
length += n
elif op < 70: # Descending insertion
n = random.randint(1, 100)
offset = random.randint(0, length)
for j in range(n):
val = random.randrange(100000)
list0.insert(offset, val)
list1.insert(offset, val)
length += n
elif op < 80: # Random deletion
n = min(random.randint(1, 100), length)
for j in range(n):
index = random.randint(0, length - 1)
del list0[index]
del list1[index]
length -= 1
elif op < 90: # Ascending deletion
if length > 0:
offset = random.randint(0, length - 1)
n = min(random.randint(1, 100), length - offset)
for j in range(n):
del list0[offset]
del list1[offset]
length -= n
elif op < 100: # Descending deletion
if length > 0:
offset = random.randint(0, length - 1)
n = min(random.randint(1, 100), offset + 1)
for j in range(n):
del list0[offset - j]
del list1[offset - j]
length -= n
else:
raise AssertionError()
if len(list0) != length or len(list1) != length:
raise AssertionError()
if length > 0:
for j in range(10):
index = random.randint(0, length - 1)
if list0[index] is not list1[index]:
raise AssertionError()
def test_against_python_list_randomly(self): ITERATIONS = 3000 list0 = [] list1 = AvlTreeList() length = 0 for i in range(ITERATIONS): op = random.randrange(100) if op < 1: # Clear list1.check_structure() list0 = [] list1.clear() length = 0 elif op < 2: # Set if length > 0: index = random.randint(0, length - 1) val = random.randrange(100000) list0[index] = val list1[index] = val elif op < 30: # Random insertion n = random.randint(1, 100) for j in range(n): index = random.randint(0, length) val = random.randrange(100000) list0.insert(index, val) list1.insert(index, val) length += 1 elif op < 50: # Ascending insertion n = random.randint(1, 100) offset = random.randint(0, length) for j in range(n): val = random.randrange(100000) list0.insert(offset + j, val) list1.insert(offset + j, val) length += n elif op < 70: # Descending insertion n = random.randint(1, 100) offset = random.randint(0, length) for j in range(n): val = random.randrange(100000) list0.insert(offset, val) list1.insert(offset, val) length += n elif op < 80: # Random deletion n = min(random.randint(1, 100), length) for j in range(n): index = random.randint(0, length - 1) del list0[index] del list1[index] length -= 1 elif op < 90: # Ascending deletion if length > 0: offset = random.randint(0, length - 1) n = min(random.randint(1, 100), length - offset) for j in range(n): del list0[offset] del list1[offset] length -= n elif op < 100: # Descending deletion if length > 0: offset = random.randint(0, length - 1) n = min(random.randint(1, 100), offset + 1) for j in range(n): del list0[offset - j] del list1[offset - j] length -= n else: raise AssertionError() if len(list0) != length or len(list1) != length: raise AssertionError() if length > 0: for j in range(10): index = random.randint(0, length - 1) if list0[index] is not list1[index]: raise AssertionError()
