def test_remove_by_value():
sll = SLList()
for n in range(1, 6):
sll.append(n)
sll.remove_by_value(3)
assert sll.size == 4
assert sll.to_arraylist() == [1, 2, 4, 5]
def test_get():
sll = SLList()
with pytest.raises(Exception):
sll.get(4)
for n in range(1, 10):
sll.append(n)
assert sll.get(4) == 5
assert sll.get(11) == 9
def test_remove_by_index():
sll = SLList()
for i in range(10):
sll.append(1)
sll.remove_by_index(5)
assert sll.size == 9
sll.remove_by_index(20)
assert sll.size == 8
def test_clear():
sll = SLList()
for n in range(1, 10):
sll.append(n)
assert sll.size == 9
assert sll.to_arraylist() != SLList().to_arraylist()
sll.clear()
assert sll.size == 0
assert sll.to_arraylist() == SLList().to_arraylist()
def test_remove_all():
sll = SLList()
for n in range(5):
sll.append(3)
for m in range(5):
sll.append(5)
for x in range(7):
sll.append(3)
sll.remove_all(3)
assert sll.size == 5
sll.remove_all(5)
assert sll.size == 0
assert not sll.remove_all(9)
def test_is_empty():
sll = SLList()
assert sll.is_empty()
sll.append(1)
assert not sll.is_empty()
def test_index_of():
sll = SLList()
for n in range(1, 10):
sll.append(n)
assert sll.index_of(6) == 5
assert sll.index_of(32) == -1
def test_append():
sll = SLList()
for n in range(1, 10):
sll.append(n)
assert sll.to_arraylist()[-1] == n
assert sll.size == n
def test_contains():
sll = SLList()
assert not sll.contains(1)
sll.append(1)
assert sll.contains(1)