def test_s_frame_transmissions_exceed_max_transmit(self):
"""
L2CAP/ERM/BV-11-C [S-Frame Transmissions Exceed MaxTransmit]
Verify the IUT will close the channel when the Monitor Timer expires.
"""
asserts.skip("Need to configure DUT to have a shorter timer")
self._setup_link_from_cert()
self.cert_l2cap.turn_on_ertm()
(dut_channel, cert_channel) = self._open_channel(scid=0x41,
psm=0x33,
use_ertm=True)
dut_channel.send(b'abc')
# Retransmission timer = 2, 20 * monitor timer = 360, so total timeout is 362
time.sleep(362)
assertThat(self.cert_l2cap.get_control_channel()).emits(
L2capMatchers.DisconnectionRequest())
def test_i_frame_transmissions_exceed_max_transmit(self):
"""
L2CAP/ERM/BV-12-C [I-Frame Transmissions Exceed MaxTransmit]
Verify the IUT will close the channel when it receives an S-frame [RR] with the final bit set that does
not acknowledge the previous I-frame sent by the IUT.
"""
self._setup_link_from_cert()
self.cert_l2cap.turn_on_ertm()
(dut_channel, cert_channel) = self._open_channel(scid=0x41,
psm=0x33,
use_ertm=True)
dut_channel.send(b'abc')
assertThat(cert_channel).emits(L2capMatchers.IFrame(tx_seq=0))
cert_channel.send_s_frame(req_seq=0, f=Final.POLL_RESPONSE)
assertThat(self.cert_l2cap.get_control_channel()).emits(
L2capMatchers.DisconnectionRequest())
def verify_disconnect_request(self):
assertThat(self._control_channel).emits(
L2capMatchers.DisconnectionRequest(self._dcid, self._scid))