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1
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from client.src.usb_detector import detector
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2
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3
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4
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def test_register_listener_1():
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5
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def connected_handler():
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6
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pass
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7
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8
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detector.register_listener(connected_handler)
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9
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10
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assert connected_handler in detector._listeners_connected
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11
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assert connected_handler not in detector._listeners_disconnected
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12
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13
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14
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def test_register_listener_2():
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15
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def connected_handler():
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16
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pass
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17
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18
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detector.register_listener(connected_handler, connected=True)
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19
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20
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assert connected_handler in detector._listeners_connected
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21
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assert connected_handler not in detector._listeners_disconnected
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22
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23
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24
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def test_register_listener_3():
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25
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def connected_handler():
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26
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pass
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27
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28
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detector.register_listener(connected_handler, connected=False)
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29
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30
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assert connected_handler in detector._listeners_disconnected
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31
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assert connected_handler not in detector._listeners_connected
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