def test_equal(self, a, b, expect):
obj = MemoryCache()
obj.extend(a.items())
self.obj.extend(b.items())
res = self.obj == obj
assert res is expect
def test_iadd_object(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = MemoryCache()
test_data.extend(powertwo_data)
check_data = list(powertwo_data)
offset = check_data[-1][0] + 1
check_data += [(x[0] + offset, x[1]) for x in powertwo_data]
res = self.obj.__iadd__(test_data)
assert list(res.items()) == check_data
assert res is self.obj
def setup(self):
self.obj = MemoryCache()
class TestMemoryCache:
@pytest.fixture(autouse=True)
def setup(self):
self.obj = MemoryCache()
def test_props_default_values(self):
assert len(self.obj.data) == 0
@pytest.mark.parametrize('a,b,expect', (({
0: 0,
5: 5,
10: 10
}, {
0: 0,
5: 5,
10: 10
}, True), ({
0: 0,
5: 5,
10: 10
}, {
0: 0,
5: 5
}, False), ({
0: 0,
6: 6,
10: 10
}, {
0: 0,
5: 5,
10: 10
}, False), ({
0: 0,
5: 6,
10: 10
}, {
0: 0,
5: 5,
10: 10
}, False)))
def test_equal(self, a, b, expect):
obj = MemoryCache()
obj.extend(a.items())
self.obj.extend(b.items())
res = self.obj == obj
assert res is expect
@pytest.mark.parametrize('a,b,expect', (({
0: 0,
5: 5,
10: 10
}, {
0: 0,
5: 5,
10: 10
}, False), ({
0: 0,
5: 5,
10: 10
}, {
0: 0,
5: 5
}, True), ({
0: 0,
6: 6,
10: 10
}, {
0: 0,
5: 5,
10: 10
}, True), ({
0: 0,
5: 6,
10: 10
}, {
0: 0,
5: 5,
10: 10
}, True)))
def test_not_equal(self, a, b, expect):
obj = MemoryCache()
obj.extend(a.items())
self.obj.extend(b.items())
res = self.obj != obj
assert res is expect
def test_len(self, powertwo_data):
self.obj.extend(powertwo_data)
check_data = list(powertwo_data)[-1][0] + 1
res = len(self.obj)
assert res == check_data
@pytest.mark.parametrize('ind', (1, -2))
def test_getitem_index(self, ind, plain_data):
self.obj.extend(plain_data)
test_data = [i[1] for i in plain_data]
res = self.obj[ind]
assert res == test_data[ind]
@pytest.mark.parametrize('ind',
itertools.chain(slice_permutations(1, 10, 3),
slice_permutations(-10, -1, 3)))
def test_getitem_slice(self, ind, plain_data):
self.obj.extend(plain_data)
test_data = [i[1] for i in plain_data]
res = self.obj[ind]
print(list(self.obj.items()))
assert list(res) == test_data[ind]
@pytest.mark.parametrize('ind', (3, 2**15, -2**15))
def test_getitem_indexerror_int_index(self, ind, powertwo_data):
self.obj.extend(powertwo_data)
with pytest.raises(IndexError):
self.obj[ind]
@pytest.mark.parametrize('ind',
itertools.chain(
slice_permutations(2**15, 2**16, 3),
slice_permutations(2, 50, 3),
slice_permutations(-200, -100, 3)))
def test_getitem_indexerror_slice(self, ind, powertwo_data):
self.obj.extend(powertwo_data)
with pytest.raises(IndexError):
list(self.obj[ind])
@pytest.mark.parametrize('step', (0, -1))
def test_getitem_error_on_zero_or_negative_step(self, step, plain_data):
self.obj.extend(plain_data)
with pytest.raises(ValueError):
self.obj[1:3:step]
@pytest.mark.parametrize('ind',
itertools.chain(
slice_permutations(1, 10, 3),
slice_permutations(-200, -100, 3),
slice_permutations(10, 1, 3),
slice_permutations(-100, -200, 3),
))
def test_getitem_error_on_empty_list(self, ind):
with pytest.raises(IndexError):
list(self.obj[ind])
@pytest.mark.parametrize('ind', (2, -3, 1000))
def test_setitem_index(self, ind, plain_data):
self.obj.extend(plain_data)
self.obj[ind] = 'test_mark'
assert self.obj[ind] == 'test_mark'
@pytest.mark.parametrize('ind', (2, -3, 1000))
def test_setitem_index_replace_old_value(self, ind, plain_data):
self.obj.extend(plain_data)
self.obj[ind] = 'test'
self.obj[ind] = 'test_mark'
assert self.obj[ind] == 'test_mark'
assert len(list(self.obj.items(
start=ind, stop=ind +
1))) == 1 # SkipList allows add several value for one key
@pytest.mark.parametrize('ind',
itertools.chain(slice_permutations(0, 10, 3),
slice_permutations(100, 110, 3)))
def test_setitem_slice(self, ind):
list_length = 10
test_data = ['test_mark' + str(x) for x in range(list_length)]
self.obj[ind] = test_data
assert all(a == b for a, b in zip(self.obj[ind], test_data))
@pytest.mark.parametrize('ind', (slice(0, 5), slice(None, 5), slice(
0, 5, 2), slice(-11, -5), slice(-11, -5, 2)))
def test_setitem_cut_value_if_slice_shorter_on_filled_list(
self, ind, plain_data):
self.obj.extend(plain_data)
list_length = 10
test_data = ['test_mark'] * list_length
self.obj[ind] = test_data
assert self.obj[ind.stop + (
(ind.step or 1) - 1)] != 'test_mark' # Check next item
@pytest.mark.parametrize('ind',
(slice(0, 5), slice(None, 5), slice(0, 5, 2)))
def test_setitem_cut_value_if_slice_shorter_on_unfilled_list(self, ind):
list_length = 10
test_data = ['test_mark'] * list_length
self.obj[ind] = test_data
# Check next item
with pytest.raises(IndexError):
check_index = ind.stop + ((ind.step or 1) - 1)
self.obj[check_index]
@pytest.mark.parametrize('ind', slice_permutations(5, 25, 3))
def test_setitem_remove_the_rest_elements_if_positive_slice_longer_than_iterable(
self, ind, plain_data):
self.obj.extend(plain_data)
check_data = list(plain_data)
list_length = 5
test_data = ['test_mark'] * list_length
self.obj[ind] = test_data
start = (ind.start or 0) + list_length * (ind.step or 1)
for i in range(start, ind.stop or len(check_data), ind.step or 1):
with pytest.raises(IndexError):
self.obj[i]
@pytest.mark.parametrize('ind', slice_permutations(-25, -5, 3))
def test_setitem_remove_the_rest_elements_if_negative_slice_longer_than_iterable(
self, ind, plain_data):
self.obj.extend(plain_data)
check_data = list(plain_data)
list_length = 5
test_data = ['test_mark'] * list_length
self.obj[ind] = test_data
# Convert negative indexes to positive ones
start = (len(check_data) +
(ind.start or 0)) + list_length * (ind.step or 1)
stop = len(check_data) + (ind.stop or 0)
for i in range(start, stop, ind.step or 1):
with pytest.raises(IndexError):
self.obj[i]
def test_setitem_error_if_not_iterable_for_slice(self):
with pytest.raises(TypeError):
self.obj[0:2] = 123
def test_setitem_indexerror_too_much_negative_int_index(self, plain_data):
self.obj.extend(plain_data)
with pytest.raises(IndexError):
self.obj[-1000] = 123
@pytest.mark.parametrize('ind', (-1, slice(-11, -5), slice(-11, -5, 2)))
def test_setitem_error_negative_indexes_on_empty_list(self, ind):
list_length = 10
test_data = ['test_mark'] * list_length
with pytest.raises(IndexError):
self.obj[ind] = test_data
@pytest.mark.parametrize('step', (0, -1))
def test_setitem_error_on_zero_or_negative_step(self, step, plain_data):
self.obj.extend(plain_data)
with pytest.raises(ValueError):
self.obj[1:3:step] = [1, 2]
@pytest.mark.parametrize('ind', (2, -2))
def test_delitem(self, ind, plain_data):
self.obj.extend(plain_data)
del self.obj[ind]
with pytest.raises(IndexError):
self.obj[ind]
@pytest.mark.parametrize('ind', (1000, -1000))
def test_delitem_error(self, ind, plain_data):
self.obj.extend(plain_data)
with pytest.raises(IndexError):
del self.obj[ind]
def test_reversed_error(self):
with pytest.raises(TypeError):
reversed(self.obj)
def test_add_list(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = [1, 5, 10, 100]
check_data = list(powertwo_data)
check_data += enumerate(test_data, start=check_data[-1][0] + 1)
res = self.obj.__add__(test_data)
assert list(res.items()) == check_data
assert res is not self.obj
def test_add_object(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = MemoryCache()
test_data.extend(powertwo_data)
check_data = list(powertwo_data)
offset = check_data[-1][0] + 1
check_data += [(x[0] + offset, x[1]) for x in powertwo_data]
res = self.obj.__add__(test_data)
assert list(res.items()) == check_data
assert res is not self.obj
def test_radd_list(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = [1, 5, 10, 100]
check_data = list(enumerate(test_data)) + [
(x[0] + len(test_data), x[1]) for x in powertwo_data
]
res = self.obj.__radd__(test_data)
assert list(res.items()) == check_data
assert res is not self.obj
def test_radd_object(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = MemoryCache()
test_data.extend(powertwo_data)
check_data = list(powertwo_data)
offset = check_data[-1][0] + 1
check_data += [(x[0] + offset, x[1]) for x in powertwo_data]
res = self.obj.__radd__(test_data)
assert list(res.items()) == check_data
assert res is not self.obj
def test_iadd_list(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = [1, 5, 10, 100]
check_data = list(powertwo_data)
check_data += enumerate(test_data, start=check_data[-1][0] + 1)
res = self.obj.__iadd__(test_data)
assert list(res.items()) == check_data
assert res is self.obj
def test_iadd_object(self, powertwo_data):
self.obj.extend(powertwo_data)
test_data = MemoryCache()
test_data.extend(powertwo_data)
check_data = list(powertwo_data)
offset = check_data[-1][0] + 1
check_data += [(x[0] + offset, x[1]) for x in powertwo_data]
res = self.obj.__iadd__(test_data)
assert list(res.items()) == check_data
assert res is self.obj
def test_mul(self, powertwo_data):
self.obj.extend(powertwo_data)
n = 4
offset = list(powertwo_data)[-1][0] + 1
check_data = [(x[0] + offset * c, x[1]) for c in range(n)
for x in powertwo_data]
res = self.obj.__mul__(n)
assert list(res.items()) == check_data
assert res is not self.obj
def test_imul(self, powertwo_data):
self.obj.extend(powertwo_data)
n = 4
offset = list(powertwo_data)[-1][0] + 1
check_data = [(x[0] + offset * c, x[1]) for c in range(n)
for x in powertwo_data]
res = self.obj.__imul__(n)
assert list(res.items()) == check_data
assert res is self.obj
def test_append(self, plain_data):
self.obj.extend(plain_data)
test_data = 'test_mark'
self.obj.append(test_data)
assert self.obj[-1] == test_data
def test_extend(self, powertwo_data, plain_data):
check_data = dict(powertwo_data)
check_data.update(plain_data)
check_data = sorted(check_data.items())
self.obj.extend(powertwo_data)
self.obj.extend(plain_data)
assert all(a[0] == b[0] and a[1] is b[1]
for a, b in zip(self.obj.items(), check_data))
def test_clear(self, plain_data):
self.obj.extend(plain_data)
self.obj.clear()
assert self.obj.count() == 0
def test_reverse(self):
with pytest.raises(TypeError):
self.obj.reverse()
@pytest.mark.parametrize('ind', (-2, 1))
def test_pop(self, ind, plain_data):
self.obj.extend(plain_data)
*_, check_data = zip(*list(plain_data))
res = self.obj.pop(ind)
assert res == check_data[ind]
assert self.obj.count() == len(check_data) - 1
def test_pop_error_empty_list(self):
with pytest.raises(IndexError):
self.obj.pop()
def test_remove(self, plain_data):
self.obj.extend(plain_data)
*_, test_data = zip(*list(plain_data))
self.obj.remove(test_data[10])
with pytest.raises(ValueError):
self.obj.index(test_data[10])
assert list(self.obj[:10]) == list(test_data[:10]) and list(
self.obj[11:]) == list(test_data[11:])
def test_remove_error_not_found(self, plain_data):
self.obj.extend(plain_data)
with pytest.raises(ValueError):
self.obj.remove(123)
def test_sort(self):
with pytest.raises(TypeError):
self.obj.sort()
def test_copy(self, plain_data):
self.obj.extend(plain_data)
res = self.obj.copy()
assert res is not self.obj
assert list(self.obj.items()) == list(res.items())
@pytest.mark.parametrize('start,stop',
((None, None), (None, 20), (10, None), (10, 20)))
def test_index_start_stop(self, start, stop, plain_data):
self.obj.extend(plain_data)
*_, test_data = zip(*list(plain_data))
ind = 15
res = self.obj.index(test_data[ind], start=start, stop=stop)
assert res == ind
@pytest.mark.parametrize('start,stop,ind',
((None, 20, 20), (10, None, 9), (10, 20, 20)))
def test_index_error_not_found_start_stop(self, start, stop, ind,
plain_data):
self.obj.extend(plain_data)
test_data, *_ = zip(*list(plain_data))
with pytest.raises(ValueError):
self.obj.index(test_data[ind], start=start, stop=stop)
def test_index_error_not_found(self, plain_data):
self.obj.extend(plain_data)
with pytest.raises(ValueError):
self.obj.index('not_found')
def test_count_return_items_count(self, plain_data):
self.obj.extend(plain_data)
test_data = list(plain_data)
res = self.obj.count()
assert res == len(test_data)
def test_count_item_arg(self):
test_data = enumerate([x % 5 for x in range(40)])
check_data = len([x for x in test_data if x == 1])
self.obj.extend(test_data)
res = self.obj.count(1)
assert res == check_data
def test_count_item_kwarg(self):
test_data = enumerate([x % 5 for x in range(40)])
check_data = len([x for x in test_data if x == 1])
self.obj.extend(test_data)
res = self.obj.count(item=1)
assert res == check_data
@pytest.mark.parametrize('start,stop',
((None, None), (None, 20), (10, None), (10, 20)))
def test_items(self, start, stop, powertwo_data):
self.obj.extend(powertwo_data)
check_data = \
list(x for x in powertwo_data if (start is None or x[0] >= start) and (stop is None or x[0] < stop))
assert list(self.obj.items(start=start, stop=stop)) == check_data
def test_tail(self, plain_data):
self.obj.extend(plain_data)
check_data = list(plain_data)[-1][0]
res = self.obj.tail()
assert res == check_data
def test_tail_error_if_empty(self):
with pytest.raises(IndexError):
self.obj.tail()