def METHOD_NAME(self):
    node = self.nodes[1]
    cases = [
        ('diag\n', 'diagnostics mode is disabled\r\n'),
        ('diag send 10 100\n', 'Error 13: InvalidState\r\n'),
        ('diag start\n', 'Done\r\n'),
        ('diag invalid test\n', 'diag feature \'invalid\' is not supported'),
        ('diag', 'diagnostics mode is enabled\r\n'),
        ('diag channel 10\n', 'failed\r\nstatus 0x7\r\n'),
        ('diag channel 11\n', 'set channel to 11\r\nstatus 0x00\r\n'),
        ('diag channel\n', 'channel: 11\r\n'),
        ('diag power -10\n', 'set tx power to -10 dBm\r\nstatus 0x00\r\n'),
        ('diag power\n', 'tx power: -10 dBm\r\n'),
        (
            'diag stats\n',
            'received packets: 0\r\nsent packets: 0\r\n'
            'first received packet: rssi=0, lqi=0\r\n'
            'last received packet: rssi=0, lqi=0\r\n',
        ),
        (
            'diag send 20 100\n',
            r'sending 0x14 packet\(s\), length 0x64\r\nstatus 0x00\r\n',
        ),
        (
            '  diag \t send    \t 20\t100',
            r'sending 0x14 packet\(s\), length 0x64\r\nstatus 0x00\r\n',
        ),
        (
            'diag repeat 100 100\n',
            'sending packets of length 0x64 at the delay of 0x64 ms\r\nstatus 0x00\r\n',
        ),
        (
            'diag repeat stop\n',
            'repeated packet transmission is stopped\r\nstatus 0x00\r\n',
        ),
        (
            'diag stop\n',
            r'received packets: 0\r\nsent packets: ([1-9]\d*)\r\n'
            'first received packet: rssi=0, lqi=0\r\n'
            'last received packet: rssi=0, lqi=0\r\n\n'
            r'stop diagnostics mode\r\nstatus 0x00\r\n',
        ),
        ('diag', 'diagnostics mode is disabled\r\n'),
        (
            'diag 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32',
            r'Error 7: InvalidArgs\r\n',
        ),
    ]
    for case in cases:
        node.send_command(case[0], expect_command_echo=False)
        self.simulator.go(1)
        if type(self.simulator).__name__ == 'VirtualTime':
            time.sleep(0.1)
        node._expect(case[1])