mirror of
https://github.com/W3SLAV/micropython.git
synced 2025-06-20 12:35:34 -04:00
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.
|
|
|
|
try:
|
|
from collections import deque
|
|
except ImportError:
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
|
|
# Only fixed-size deques are supported, so length arg is mandatory.
|
|
try:
|
|
deque(())
|
|
except TypeError:
|
|
print("TypeError")
|
|
|
|
# Test third argument: flags when True means check for under/overflow
|
|
d = deque((), 2, True)
|
|
|
|
try:
|
|
d.popleft()
|
|
except IndexError:
|
|
print("IndexError")
|
|
|
|
try:
|
|
d.pop()
|
|
except IndexError:
|
|
print("IndexError")
|
|
|
|
# Removing elements with del is not supported, fallback to
|
|
# mp_obj_subscr() error message.
|
|
try:
|
|
del d[0]
|
|
except TypeError:
|
|
print("TypeError")
|
|
|
|
print(d.append(1))
|
|
print(d.popleft())
|
|
|
|
d.append(2)
|
|
print(d.popleft())
|
|
|
|
d.append(3)
|
|
d.append(4)
|
|
print(d.popleft(), d.popleft())
|
|
try:
|
|
d.popleft()
|
|
except IndexError as e:
|
|
print(repr(e))
|
|
|
|
try:
|
|
d.pop()
|
|
except IndexError as e:
|
|
print(repr(e))
|
|
|
|
d.append(5)
|
|
d.append(6)
|
|
print(len(d))
|
|
try:
|
|
d.append(7)
|
|
except IndexError as e:
|
|
print(repr(e))
|
|
|
|
try:
|
|
d.appendleft(8)
|
|
except IndexError as e:
|
|
print(repr(e))
|
|
|
|
print(len(d))
|
|
|
|
print(d.popleft(), d.popleft())
|
|
print(len(d))
|
|
try:
|
|
d.popleft()
|
|
except IndexError as e:
|
|
print(repr(e))
|