示例#1
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def test_iterable():
    """
    PDeques can be created from iterables even though they can't be len()
    hinted.
    """

    assert pdeque(iter("a")) == pdeque(iter("a"))
示例#2
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def test_iterable():
    """
    PDeques can be created from iterables even though they can't be len()
    hinted.
    """

    assert pdeque(iter("a")) == pdeque(iter("a"))
示例#3
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def test_comparison():
    small = pdeque([1, 2])
    large = pdeque([1, 2, 3])

    assert small < large
    assert large > small
    assert not small > large
    assert not large < small
    assert large != small

    # Not equal to other types
    assert small != [1, 2]
示例#4
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def test_comparison():
    small = pdeque([1, 2])
    large = pdeque([1, 2, 3])

    assert small < large
    assert large > small
    assert not small > large
    assert not large < small
    assert large != small

    # Not equal to other types
    assert small != [1, 2]
示例#5
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def test_remove():
    assert pdeque([1, 2, 3, 4]).remove(2) == pdeque([1, 3, 4])
    assert pdeque([1, 2, 3, 4]).remove(4) == pdeque([1, 2, 3])

    # Right list must be reversed before removing element
    assert pdeque([1, 2, 3, 3, 4, 5, 4,
                   6]).remove(4) == pdeque([1, 2, 3, 3, 5, 4, 6])
示例#6
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def test_indexing():
    assert pdeque([1, 2, 3])[0] == 1
    assert pdeque([1, 2, 3])[1] == 2
    assert pdeque([1, 2, 3])[2] == 3
    assert pdeque([1, 2, 3])[-1] == 3
    assert pdeque([1, 2, 3])[-2] == 2
    assert pdeque([1, 2, 3])[-3] == 1
示例#7
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def test_indexing():
    assert pdeque([1, 2, 3])[0] == 1
    assert pdeque([1, 2, 3])[1] == 2
    assert pdeque([1, 2, 3])[2] == 3
    assert pdeque([1, 2, 3])[-1] == 3
    assert pdeque([1, 2, 3])[-2] == 2
    assert pdeque([1, 2, 3])[-3] == 1
示例#8
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def test_indexing_out_of_range():
    with pytest.raises(IndexError):
        pdeque([1, 2, 3])[-4]

    with pytest.raises(IndexError):
        pdeque([1, 2, 3])[3]

    with pytest.raises(IndexError):
        pdeque([2])[-2]
示例#9
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def test_indexing_out_of_range():
    with pytest.raises(IndexError):
        pdeque([1, 2, 3])[-4]

    with pytest.raises(IndexError):
        pdeque([1, 2, 3])[3]

    with pytest.raises(IndexError):
        pdeque([2])[-2]
示例#10
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def test_popleft():
    x = pdeque([1, 2, 3, 4]).popleft()
    assert x.left == 2
    assert x.right == 4

    x = x.popleft()
    assert x.left == 3
    assert x.right == 4

    x = x.popleft()
    assert x.right == 4
    assert x.left == 4

    x = x.popleft()
    assert x == pdeque()

    x = pdeque([1, 2]).popleft()
    assert x == pdeque([2])

    x = x.popleft()
    assert x == pdeque()

    assert pdeque().append(1).popleft() == pdeque()
    assert pdeque().appendleft(1).popleft() == pdeque()
示例#11
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def test_popleft():
    x = pdeque([1, 2, 3, 4]).popleft()
    assert x.left == 2
    assert x.right == 4

    x = x.popleft()
    assert x.left == 3
    assert x.right == 4

    x = x.popleft()
    assert x.right == 4
    assert x.left == 4

    x = x.popleft()
    assert x == pdeque()

    x = pdeque([1, 2]).popleft()
    assert x == pdeque([2])

    x = x.popleft()
    assert x == pdeque()

    assert pdeque().append(1).popleft() == pdeque()
    assert pdeque().appendleft(1).popleft() == pdeque()
示例#12
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def test_remove_element_missing():
    with pytest.raises(ValueError):
        pdeque().remove(2)

    with pytest.raises(ValueError):
        pdeque([1, 2, 3]).remove(4)
示例#13
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def test_count():
    x = pdeque([1, 2, 3, 2, 1])
    assert x.count(1) == 2
    assert x.count(2) == 2
示例#14
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def test_extendleft():
    assert pdeque([2, 1]).extendleft([3, 4]) == pdeque([4, 3, 2, 1])
示例#15
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def test_count():
    x = pdeque([1, 2, 3, 2, 1])
    assert x.count(1) == 2
    assert x.count(2) == 2
示例#16
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def test_pop_multiple():
    assert pdeque([1, 2, 3, 4]).pop(3) == pdeque([1])
    assert pdeque([1, 2]).pop(3) == pdeque()
示例#17
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def test_hashing():
    assert hash(pdeque([1, 2,
                        3])) == hash(pdeque().append(1).append(2).append(3))
示例#18
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def test_construction_with_maxlen():
    assert pdeque([1, 2, 3, 4], maxlen=2) == pdeque([3, 4])
    assert pdeque([1, 2, 3, 4], maxlen=4) == pdeque([1, 2, 3, 4])
    assert pdeque([], maxlen=2) == pdeque()
示例#19
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def test_set_maxlen():
    x = pdeque([], maxlen=4)
    assert x.maxlen == 4

    with pytest.raises(AttributeError):
        x.maxlen = 5
示例#20
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def test_rotate_left():
    assert pdeque([1, 2, 3, 4, 5]).rotate(-2) == pdeque([3, 4, 5, 1, 2])
    assert pdeque().rotate(-2) == pdeque()
示例#21
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def test_construction_with_invalid_maxlen():
    with pytest.raises(TypeError):
        pdeque([], maxlen='foo')

    with pytest.raises(ValueError):
        pdeque([], maxlen=-3)
示例#22
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def test_rotate_right():
    assert pdeque([1, 2, 3, 4, 5]).rotate(2) == pdeque([4, 5, 1, 2, 3])
    assert pdeque([1, 2]).rotate(0) == pdeque([1, 2])
    assert pdeque().rotate(2) == pdeque()
示例#23
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def test_reverse():
    assert pdeque([1, 2, 3, 4]).reverse() == pdeque([4, 3, 2, 1])
    assert pdeque().reverse() == pdeque()
示例#24
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def test_remove_element_missing():
    with pytest.raises(ValueError):
        pdeque().remove(2)

    with pytest.raises(ValueError):
        pdeque([1, 2, 3]).remove(4)
示例#25
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def test_remove():
    assert pdeque([1, 2, 3, 4]).remove(2) == pdeque([1, 3, 4])
    assert pdeque([1, 2, 3, 4]).remove(4) == pdeque([1, 2, 3])

    # Right list must be reversed before removing element
    assert pdeque([1, 2, 3, 3, 4, 5, 4, 6]).remove(4) == pdeque([1, 2, 3, 3, 5, 4, 6])
示例#26
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def test_rotate_right():
    assert pdeque([1, 2, 3, 4, 5]).rotate(2) == pdeque([4, 5, 1, 2, 3])
    assert pdeque([1, 2]).rotate(0) == pdeque([1, 2])
    assert pdeque().rotate(2) == pdeque()
示例#27
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def test_rotate_left():
    assert pdeque([1, 2, 3, 4, 5]).rotate(-2) == pdeque([3, 4, 5, 1, 2])
    assert pdeque().rotate(-2) == pdeque()
示例#28
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def test_extendleft():
    assert pdeque([2, 1]).extendleft([3, 4]) == pdeque([4, 3, 2, 1])
示例#29
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def test_indexing_invalid_type():
    with pytest.raises(TypeError) as e:
        pdeque([1, 2, 3])['foo']

    assert 'cannot be interpreted' in str(e)
示例#30
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def test_pickling():
    input = pdeque([1, 2, 3], maxlen=5)
    output = pickle.loads(pickle.dumps(input, -1))

    assert output == input
    assert output.maxlen == input.maxlen
示例#31
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def test_literalish():
    assert dq(1, 2, 3) == pdeque([1, 2, 3])
示例#32
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def test_indexing_invalid_type():
    with pytest.raises(TypeError) as e:
        pdeque([1, 2, 3])['foo']

    assert 'cannot be interpreted' in str(e)
示例#33
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def test_slicing():
    assert pdeque([1, 2, 3])[1:2] == pdeque([2])
    assert pdeque([1, 2, 3])[2:1] == pdeque([])
    assert pdeque([1, 2, 3])[-2:-1] == pdeque([2])
    assert pdeque([1, 2, 3])[::2] == pdeque([1, 3])
示例#34
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def test_hashing():
    assert hash(pdeque([1, 2, 3])) == hash(pdeque().append(1).append(2).append(3))
示例#35
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def test_extend_with_maxlen():
    assert pdeque([1, 2], maxlen=3).extend([3, 4]) == pdeque([2, 3, 4])
    assert pdeque([1, 2], maxlen=2).extend([3, 4]) == pdeque([3, 4])
    assert pdeque([], maxlen=2).extend([1, 2]) == pdeque([1, 2])
    assert pdeque([], maxlen=0).extend([1, 2]) == pdeque([])
示例#36
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def test_index():
    assert pdeque([1, 2, 3]).index(3) == 2
示例#37
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def test_extendleft_with_maxlen():
    assert pdeque([1, 2], maxlen=3).extendleft([3, 4]) == pdeque([4, 3, 1])
    assert pdeque([1, 2], maxlen=2).extendleft([3, 4]) == pdeque([4, 3])
    assert pdeque([], maxlen=2).extendleft([1, 2]) == pdeque([2, 1])
    assert pdeque([], maxlen=0).extendleft([1, 2]) == pdeque([])
示例#38
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def test_literalish():
    assert dq(1, 2, 3) == pdeque([1, 2, 3])
示例#39
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def test_extend():
    assert pdeque([1, 2]).extend([3, 4]) == pdeque([1, 2, 3, 4])
示例#40
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def test_basic_right_and_left():
    x = pdeque([1, 2])

    assert x.right == 2
    assert x.left == 1
    assert len(x) == 2
示例#41
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def test_reverse():
    assert pdeque([1, 2, 3, 4]).reverse() == pdeque([4, 3, 2, 1])
    assert pdeque().reverse() == pdeque()
示例#42
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def test_pop_multiple():
    assert pdeque([1, 2, 3, 4]).pop(3) == pdeque([1])
    assert pdeque([1, 2]).pop(3) == pdeque()
示例#43
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def test_construction_with_invalid_maxlen():
    with pytest.raises(TypeError):
        pdeque([], maxlen='foo')

    with pytest.raises(ValueError):
        pdeque([], maxlen=-3)
示例#44
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def test_pop_with_negative_index():
    assert pdeque([1, 2, 3]).pop(-1) == pdeque([1, 2, 3]).popleft(1)
    assert pdeque([1, 2, 3]).popleft(-1) == pdeque([1, 2, 3]).pop(1)
示例#45
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def test_set_maxlen():
    x = pdeque([], maxlen=4)
    assert x.maxlen == 4

    with pytest.raises(AttributeError):
        x.maxlen = 5
示例#46
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def test_left_on_empty_deque():
    with pytest.raises(IndexError):
        pdeque().left
示例#47
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def test_pickling():
    input = pdeque([1, 2, 3], maxlen=5)
    output = pickle.loads(pickle.dumps(input, -1))

    assert output == input
    assert output.maxlen == input.maxlen
示例#48
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def test_extend_with_maxlen():
    assert pdeque([1, 2], maxlen=3).extend([3, 4]) == pdeque([2, 3, 4])
    assert pdeque([1, 2], maxlen=2).extend([3, 4]) == pdeque([3, 4])
    assert pdeque([], maxlen=2).extend([1, 2]) == pdeque([1, 2])
    assert pdeque([], maxlen=0).extend([1, 2]) == pdeque([])
示例#49
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def test_slicing():
    assert pdeque([1, 2, 3])[1:2] == pdeque([2])
    assert pdeque([1, 2, 3])[2:1] == pdeque([])
    assert pdeque([1, 2, 3])[-2:-1] == pdeque([2])
    assert pdeque([1, 2, 3])[::2] == pdeque([1, 3])
示例#50
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def test_left_on_empty_deque():
    with pytest.raises(IndexError):
        pdeque().left
示例#51
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def test_index():
    assert pdeque([1, 2, 3]).index(3) == 2
示例#52
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def test_right_on_empty_deque():
    with pytest.raises(IndexError):
        pdeque().right
示例#53
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def test_basic_right_and_left():
    x = pdeque([1, 2])

    assert x.right == 2
    assert x.left == 1
    assert len(x) == 2
示例#54
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def test_construction_with_maxlen():
    assert pdeque([1, 2, 3, 4], maxlen=2) == pdeque([3, 4])
    assert pdeque([1, 2, 3, 4], maxlen=4) == pdeque([1, 2, 3, 4])
    assert pdeque([], maxlen=2) == pdeque()
示例#55
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def test_pop_with_negative_index():
    assert pdeque([1, 2, 3]).pop(-1) == pdeque([1, 2, 3]).popleft(1)
    assert pdeque([1, 2, 3]).popleft(-1) == pdeque([1, 2, 3]).pop(1)
示例#56
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def test_extend():
    assert pdeque([1, 2]).extend([3, 4]) == pdeque([1, 2, 3, 4])
示例#57
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def test_popleft_multiple():
    assert pdeque([1, 2, 3, 4]).popleft(3) == pdeque([4])
示例#58
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def test_extendleft_with_maxlen():
    assert pdeque([1, 2], maxlen=3).extendleft([3, 4]) == pdeque([4, 3, 1])
    assert pdeque([1, 2], maxlen=2).extendleft([3, 4]) == pdeque([4, 3])
    assert pdeque([], maxlen=2).extendleft([1, 2]) == pdeque([2, 1])
    assert pdeque([], maxlen=0).extendleft([1, 2]) == pdeque([])
示例#59
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def test_right_on_empty_deque():
    with pytest.raises(IndexError):
        pdeque().right
示例#60
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def test_popleft_multiple():
    assert pdeque([1, 2, 3, 4]).popleft(3) == pdeque([4])