def test_getitem():
ll = LinkedList()
ll.dump(5, 3, 1)
assert ll[0] == 5
assert ll[1] == 3
assert ll[2] == 1
def test_indexerror_getitem():
ll = LinkedList()
ll.dump(5, 3, 1)
with pytest.raises(IndexError):
ll[234]
with pytest.raises(IndexError):
ll[3]
def test_remove():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll.remove(1)
ll.remove(5)
ll2 = LinkedList()
ll2.dump(4, 3, 2)
assert repr(ll) == repr(ll2)
def test_setitem():
ll = LinkedList()
ll.dump(5, 3, 1)
ll[0] = 2
ll[1] = 9
ll[2] = 10
assert ll[0] == 2
assert ll[1] == 9
assert ll[2] == 10
def test_reverse():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll2 = LinkedList()
ll2.dump(1, 2, 3, 4, 5)
assert repr(ll.reverse()) == repr(ll2)
def test_delitem():
ll = LinkedList()
ll.dump(5, 3, 1, 0)
ll2 = LinkedList()
ll2.dump(3, 1, 0)
del ll[0]
assert ll == ll2
def test_eq():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll2 = LinkedList()
ll2.dump(5, 4, 3, 2, 1)
assert ll == ll2
def test_iter():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll2 = LinkedList()
for l in ll:
ll2.append(l)
assert ll == ll2
def test_index():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
assert ll.index(5) == 1
assert ll.index(3) == 3
assert ll.index(1) == 5
def test_prepend():
ll = LinkedList()
ll.append(5)
ll.prepend(3)
ll.prepend(1)
assert repr(ll) == '{1, 3, 5, }'
def test_append():
ll = LinkedList()
ll.append(5)
ll.append(3)
ll.append(1)
assert repr(ll) == '(5, (3, (1, ())))'
def test_append():
ll = LinkedList()
ll.append(5)
ll.append(3)
ll.append(1)
assert repr(ll) == '{5, 3, 1, }'
def test_pop():
ll = LinkedList()
ll.dump(5, 3, 1, 0)
assert ll.pop(0) == 5
assert ll.pop(2) == 0
assert ll.pop() == 1
def test_swap():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll.swap(0, 4)
ll.swap(1, 3)
assert ll[0] == 1
assert ll[4] == 5
assert ll[1] == 2
assert ll[3] == 4
def test_indexerror_setitem():
ll = LinkedList()
ll.dump(5, 3, 1)
with pytest.raises(IndexError):
ll[430] = None
def test_indexerror_insert():
ll = LinkedList()
ll.dump(5, 3, 1)
with pytest.raises(IndexError):
ll.insert(6, 2)
def test_indexerror_delitem():
ll = LinkedList()
ll.dump(5, 3, 1, 0)
with pytest.raises(IndexError):
del ll[234]
def test_valueerror_remove():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
with pytest.raises(ValueError):
ll.remove(8)
def test_indexerror_pop():
ll = LinkedList()
ll.dump(5, 3, 1, 0)
with pytest.raises(IndexError):
ll.pop(234)
def test_valueerror_index():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
with pytest.raises(ValueError):
ll.index(100)
def test_lastitem():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
assert ll.lastitem() == 1
assert ll.lastitem(True) == 5
def test_len():
ll = LinkedList()
ll.dump(5, 3, 1)
assert len(ll) == 3
def test_sort():
ll = LinkedList()
ll.dump(5, 2, 1, 4, 3)
ll2 = LinkedList()
ll2.dump(1, 2, 3, 4, 5)
ll3 = LinkedList()
ll3.dump(5, 2, 1, 4, 3)
ll4 = LinkedList()
ll4.dump(5, 4, 3, 2, 1)
ll.sort()
ll3.sort(reverse=True)
assert repr(ll) == repr(ll2)
assert repr(ll3) == repr(ll4)
def test_dump():
ll = LinkedList()
ll.dump(5, 3, 1)
assert repr(ll) == '{5, 3, 1, }'
def test_insert():
ll = LinkedList()
ll.dump(5, 3, 1)
ll.insert(0, 0)
def test_add():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll2 = LinkedList()
ll2.dump(5, 4, 3, 2, 1)
ll3 = LinkedList()
ll3.dump(5, 4, 3, 2, 1, 5, 4, 3, 2, 1)
assert repr(ll + ll2) == repr(ll3)
assert repr(ll + ll) == repr(ll3)
def test_count():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1, 5, 1, 2, 3, 4, 5)
assert ll.count(1) == 2
assert ll.count(5) == 3