def test_set_nth(self, str_stack: PushStack):
str_stack.push("a").push("b").push("c").push("d").set_nth(1, "z")
assert len(str_stack) == 4
assert str_stack.nth(1) == "z"
def test_nth_oob(self, int_stack: PushStack):
int_stack.push(5)
assert int_stack.nth(1) == Token.no_stack_item
def test_insert_oob(self, str_stack: PushStack):
str_stack.push("a").push("b").push("c").insert(10, "z")
assert len(str_stack) == 4
assert str_stack.nth(1) == "b"
assert str_stack.nth(3) == "z"
def test_nth(self, int_stack: PushStack):
int_stack.push(5).push(4).push(3)
assert int_stack.nth(1) == 4
def test_set_nth(self, str_stack: PushStack):
str_stack.push("a").push("b").push("c").push("d").set_nth(1, "z")
assert len(str_stack) == 4
assert str_stack.nth(1) == "z"
def test_insert_oob(self, str_stack: PushStack):
str_stack.push("a").push("b").push("c").insert(10, "z")
assert len(str_stack) == 4
assert str_stack.nth(1) == "b"
assert str_stack.nth(3) == "z"
def test_nth_oob(self, int_stack: PushStack):
int_stack.push(5)
assert int_stack.nth(1) == Token.no_stack_item
def test_nth(self, int_stack: PushStack):
int_stack.push(5).push(4).push(3)
assert int_stack.nth(1) == 4