class TestStack:
def setup(self):
self.base_list = generate_list(size=100, negatives=True)
self.stack = Stack(list(self.base_list))
def test_create(self):
assert check_equivalence(self.base_list, self.stack)
def test_push(self):
self.base_list.append(21)
self.stack.push(21)
assert check_equivalence(self.base_list, self.stack)
def test_pop(self):
item = self.stack.peek()
assert self.stack.pop() is item
@raises(ValueError)
def test_pop_fail(self):
Stack().pop()
def test_peek(self):
assert STACK.peek() == 6
def test_is_empty(self):
assert Stack().is_empty() is True
assert self.stack.is_empty() is False
def setup(self):
self.base_list = generate_list(size=100, negatives=True)
self.stack = Stack(list(self.base_list))