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https://github.com/W3SLAV/micropython.git
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c9016b4979
So that the MicroPython-specific behaviour can be isolated, and the CPython compatible test don't need a .exp file. Signed-off-by: Damien George <damien@micropython.org>
76 lines
1.2 KiB
Python
76 lines
1.2 KiB
Python
# Test MicroPython-specific features of collections.deque.
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try:
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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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# Only fixed-size deques are supported, so length arg is mandatory.
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try:
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deque(())
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except TypeError:
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print("TypeError")
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# Test third argument: flags when True means check for under/overflow
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d = deque((), 2, True)
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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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try:
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d.pop()
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except IndexError:
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print("IndexError")
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# Removing elements with del is not supported, fallback to
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# mp_obj_subscr() error message.
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try:
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del d[0]
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except TypeError:
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print("TypeError")
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print(d.append(1))
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print(d.popleft())
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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(d.popleft(), d.popleft())
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try:
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d.popleft()
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except IndexError as e:
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print(repr(e))
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try:
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d.pop()
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except IndexError as e:
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print(repr(e))
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d.append(5)
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d.append(6)
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print(len(d))
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try:
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d.append(7)
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except IndexError as e:
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print(repr(e))
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try:
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d.appendleft(8)
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except IndexError as e:
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print(repr(e))
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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 as e:
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print(repr(e))
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