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# Check that micropython.RingIO works correctly.
import micropython
try:
micropython.RingIO
except AttributeError:
print("SKIP")
raise SystemExit
rb = micropython.RingIO(16)
print(rb)
print(rb.any())
rb.write(b"\x00")
print(rb.any())
rb.write(b"\x00")
print(rb.any())
print(rb.read(2))
print(rb.any())
rb.write(b"\x00\x01")
print(rb.read())
print(rb.read(1))
# Try to write more data than can fit at one go.
print(rb.write(b"\x00\x01" * 10))
print(rb.write(b"\x00"))
print(rb.read())
ba = bytearray(17)
rb = micropython.RingIO(ba)
print(rb)
print(rb.write(b"\x00\x01" * 10))
print(rb.write(b"\x00"))
print(rb.read())
try:
# Size must be int.
micropython.RingIO(None)
except TypeError as ex:
print(type(ex))
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