def test_circular_buffer_popleft_overfull():
b = CircularBuffer(5, range(7))
assert b.popleft() == 2
assert list(b) == [3, 4, 5, 6]
assert b.popleft() == 3
assert list(b) == [4, 5, 6]
def test_circular_buffer_getitem_empty_invalid():
b = CircularBuffer(5)
with pytest.raises(IndexError):
b[0]
def test_circular_buffer_getitem_partial_negative():
b = CircularBuffer(5, range(3))
assert b[-1] == 2
def test_circular_buffer_contains_overfull_false_obj():
b = CircularBuffer(5, range(7))
assert "foo" not in b
def test_circular_buffer_len_overfull_popleft():
b = CircularBuffer(5, range(7))
b.popleft()
assert len(b) == 4
def test_circular_buffer_contains_overfull_true():
b = CircularBuffer(5, range(7))
assert 2 in b
assert 3 in b
assert 6 in b
def test_circular_buffer_init_unsized_error():
with pytest.raises(TypeError):
CircularBuffer()
def test_circular_buffer_iter_full():
b = CircularBuffer(5, range(5))
assert list(iter(b)) == [0, 1, 2, 3, 4]
def test_circular_buffer_len_partial():
assert len(CircularBuffer(5, range(3))) == 3
def test_circular_buffer_iter_empty():
b = CircularBuffer(5)
assert list(iter(b)) == []
def test_circular_buffer_iter_partial():
b = CircularBuffer(5, range(3))
assert list(iter(b)) == [0, 1, 2]
def test_circular_buffer_appends_pops_overfull():
b = CircularBuffer(5, range(7))
b.append(-1)
b.append(-2)
assert list(b) == [4, 5, 6, -1, -2]
assert b.pop() == -2
assert b.popleft() == 4
assert list(b) == [5, 6, -1]
b.append(-3)
b.append(-4)
assert list(b) == [5, 6, -1, -3, -4]
b.appendleft(-5)
assert list(b) == [-5, 5, 6, -1, -3]
assert b.popleft() == -5
assert b.popleft() == 5
assert list(b) == [6, -1, -3]
b.appendleft(-6)
assert list(b) == [-6, 6, -1, -3]
assert b.popleft() == -6
def test_circular_buffer_len_empty():
assert len(CircularBuffer(5)) == 0
def test_circular_buffer_appends_pops_partial():
b = CircularBuffer(5)
b.append(1)
b.append(2)
assert list(b) == [1, 2]
assert b.pop() == 2
assert list(b) == [1]
b.append(3)
b.append(4)
assert list(b) == [1, 3, 4]
assert b.popleft() == 1
assert b.popleft() == 3
assert list(b) == [4]
b.appendleft(5)
assert list(b) == [5, 4]
assert b.popleft() == 5
def test_circular_buffer_contains_partial_false_none():
b = CircularBuffer(5, range(3))
assert None not in b
def test_circular_buffer_iter_overfull():
b = CircularBuffer(5, range(7))
assert list(iter(b)) == [2, 3, 4, 5, 6]
def test_circular_buffer_contains_partial_false_obj():
b = CircularBuffer(5, range(3))
assert "foo" not in b
def test_circular_buffer_reversed_empty():
b = CircularBuffer(5)
assert list(reversed(b)) == []
def test_circular_buffer_contains_overfull_false_int():
b = CircularBuffer(5, range(7))
assert -1 not in b
assert 0 not in b
assert 1 not in b
assert 7 not in b
def test_circular_buffer_reversed_partial():
b = CircularBuffer(5, range(3))
assert list(reversed(b)) == [2, 1, 0]
def test_circular_buffer_contains_overfull_false_none():
b = CircularBuffer(5, range(7))
assert None not in b
def test_circular_buffer_reversed_full():
b = CircularBuffer(5, range(5))
assert list(reversed(b)) == [4, 3, 2, 1, 0]
def test_circular_buffer_len_overfull():
assert len(CircularBuffer(5, range(7))) == 5
def test_circular_buffer_reversed_overfull():
b = CircularBuffer(5, range(7))
assert list(reversed(b)) == [6, 5, 4, 3, 2]
def test_circular_buffer_maxlen():
b = CircularBuffer(5)
assert b.maxlen == 5
def test_circular_buffer_contains_partial_true():
b = CircularBuffer(5, range(3))
assert 0 in b
assert 1 in b
assert 2 in b
def test_circular_buffer_getitem_partial():
b = CircularBuffer(5, range(3))
assert b[0] == 0
assert b[1] == 1
assert b[2] == 2
def test_circular_buffer_contains_partial_false_int():
b = CircularBuffer(5, range(3))
assert -1 not in b
assert 3 not in b
def test_circular_buffer_getitem_partial_invalid_negative():
b = CircularBuffer(5, range(3))
with pytest.raises(IndexError):
b[-10]
def test_circular_buffer_popleft_partial():
b = CircularBuffer(5, range(3))
assert b.popleft() == 0
assert list(b) == [1, 2]
assert b.popleft() == 1
assert list(b) == [2]
