Jeff Epler
b0175bb2f7
ringbuffer.size must be at least 2, and is a 16-bit quantity. This fixes several cases including the one the fuzzer discovered, which would lead to a fatal signal when accessing the object. Closes: #17847 Signed-off-by: Jeff Epler <jepler@gmail.com>
66 lines
1.1 KiB
Python
66 lines
1.1 KiB
Python
# Check that micropython.RingIO works correctly.
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import micropython
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try:
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micropython.RingIO
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except AttributeError:
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print("SKIP")
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raise SystemExit
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rb = micropython.RingIO(16)
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print(rb)
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print(rb.any())
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rb.write(b"\x00")
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print(rb.any())
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rb.write(b"\x00")
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print(rb.any())
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print(rb.read(2))
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print(rb.any())
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rb.write(b"\x00\x01")
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print(rb.read())
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print(rb.read(1))
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# Try to write more data than can fit at one go.
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print(rb.write(b"\x00\x01" * 10))
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print(rb.write(b"\x00"))
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print(rb.read())
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ba = bytearray(17)
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rb = micropython.RingIO(ba)
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print(rb)
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print(rb.write(b"\x00\x01" * 10))
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print(rb.write(b"\x00"))
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print(rb.read())
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try:
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# Size must be int.
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micropython.RingIO(None)
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except TypeError as ex:
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print(type(ex))
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try:
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# Buffer may not be empty
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micropython.RingIO(bytearray(0))
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except ValueError as ex:
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print(type(ex))
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try:
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# Buffer may not be too small
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micropython.RingIO(bytearray(1))
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except ValueError as ex:
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print(type(ex))
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try:
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# Size may not be too small
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micropython.RingIO(0)
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except ValueError as ex:
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print(type(ex))
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