def test_last(self, index_after_last_element, size, array,
expected_result):
array_queue = ArrayDeque(array=array)
array_queue._index_after_last_element = index_after_last_element
array_queue._size = size
actual_result = array_queue.last()
assert actual_result == expected_result
def test__get_effective_last_element_index(self, index_after_last_element,
size, initial_length,
expected_result):
array_queue = ArrayDeque(initial_length=initial_length)
array_queue._index_after_last_element = index_after_last_element
array_queue._size = size
actual_result = array_queue._get_effective_last_element_index()
assert actual_result == expected_result
def test_add_first(self, index_after_last_element, size, array, element,
expected_result):
array_queue = ArrayDeque(array=array)
array_queue._index_after_last_element = index_after_last_element
array_queue._size = size
array_queue.add_first(element)
actual_result = array_queue.to_dict()
assert actual_result == expected_result
def test__get_effective_last_element_index_if_array_is_empty_should_rise_exception(
self,
index_after_last_element,
size,
initial_length,
):
array_queue = ArrayDeque(initial_length=initial_length)
array_queue._index_after_last_element = index_after_last_element
array_queue._size = size
with pytest.raises(EmptyCollection):
array_queue._get_effective_last_element_index()
def test__get_index_after_last_element(self, index_after_last_element,
expected_result):
array_queue = ArrayDeque()
array_queue._index_after_last_element = index_after_last_element
actual_result = array_queue._get_index_after_last_element()
assert actual_result == expected_result
def test___init__with_default_values(self, expected_result):
array_deque = ArrayDeque()
actual_result = array_deque.to_dict()
assert actual_result == expected_result
def test___init__passed_empty_array(self, array, expected_result):
array_deque = ArrayDeque(array=array)
actual_result = array_deque.to_dict()
assert actual_result == expected_result
def test___init__passed_array_is_none(self, initial_length, array,
expected_result):
array_deque = ArrayDeque(initial_length=initial_length, array=array)
actual_result = array_deque.to_dict()
assert actual_result == expected_result