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68 lines
1.0 KiB
68 lines
1.0 KiB
try:
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try:
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from ucollections import deque
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except ImportError:
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from collections import deque
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except ImportError:
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print("SKIP")
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raise SystemExit
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d = deque((), 2)
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print(len(d))
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print(bool(d))
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try:
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d.popleft()
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except IndexError:
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print("IndexError")
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print(d.append(1))
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print(len(d))
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print(bool(d))
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print(d.popleft())
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print(len(d))
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d.append(2)
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print(d.popleft())
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d.append(3)
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d.append(4)
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print(len(d))
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print(d.popleft(), d.popleft())
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try:
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d.popleft()
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except IndexError:
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print("IndexError")
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d.append(5)
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d.append(6)
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d.append(7)
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print(len(d))
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print(d.popleft(), d.popleft())
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print(len(d))
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try:
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d.popleft()
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except IndexError:
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print("IndexError")
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# Case where get index wraps around when appending to full deque
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d = deque((), 2)
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d.append(1)
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d.append(2)
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d.append(3)
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d.append(4)
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d.append(5)
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print(d.popleft(), d.popleft())
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# Negative maxlen is not allowed
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try:
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deque((), -1)
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except ValueError:
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print("ValueError")
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# Unsupported unary op
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try:
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~d
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except TypeError:
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print("TypeError")
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