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#!/bin/sh
[ "$1" = python3-pyusb ] || exit 0
python3 - << 'EOF'
import usb
import usb.core
import usb.util
import usb.control
import usb.backend.libusb1
# version string is a non-empty string
assert isinstance(usb.__version__, str) and len(usb.__version__) > 0, 'bad version: ' + repr(usb.__version__)
# exception classes are proper Exception subclasses
assert issubclass(usb.core.USBError, Exception)
assert issubclass(usb.core.NoBackendError, Exception)
# find() returns an empty list, or raises NoBackendError when no backend is available
try:
devices = list(usb.core.find(find_all=True))
assert isinstance(devices, list), 'find() did not return a list'
except usb.core.NoBackendError:
pass # acceptable: no USB backend available in test environment
# util.find_descriptor is callable
assert callable(usb.util.find_descriptor)
EOF
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