def test_transmit_i_frames(self):
"""
L2CAP/ERM/BV-01-C [Transmit I-frames]
"""
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, payload=b"abc"))
# Assemble a sample packet. TODO: Use RawBuilder
SAMPLE_PACKET = l2cap_packets.CommandRejectNotUnderstoodBuilder(1)
# todo: verify packet received?
cert_channel.send_i_frame(tx_seq=0, req_seq=1, payload=SAMPLE_PACKET)
dut_channel.send(b'abc')
assertThat(cert_channel).emits(
L2capMatchers.IFrame(tx_seq=1, payload=b"abc"))
cert_channel.send_i_frame(tx_seq=1, req_seq=2, payload=SAMPLE_PACKET)
dut_channel.send(b'abc')
assertThat(cert_channel).emits(L2capMatchers.PartialData(b"abc"))
cert_channel.send_i_frame(tx_seq=2, req_seq=3, payload=SAMPLE_PACKET)
def test_fixed_channel(self):
self._setup_link_from_cert()
self.dut.l2cap.RegisterChannel(
l2cap_facade_pb2.RegisterChannelRequest(channel=2))
asserts.skip("FIXME: Not working")
self.dut.l2cap.SendL2capPacket(
l2cap_facade_pb2.L2capPacket(channel=2, payload=b"123"))
assertThat(self.cert_channel).emits(L2capMatchers.PartialData(b'123'))
def test_respond_to_echo_request(self):
"""
L2CAP/COS/ECH/BV-01-C [Respond to Echo Request]
Verify that the IUT responds to an echo request.
"""
self._setup_link_from_cert()
asserts.skip("is echo without a channel supported?")
echo_request = l2cap_packets.EchoRequestBuilder(
100, l2cap_packets.DisconnectionRequestBuilder(1, 2, 3))
echo_request_l2cap = l2cap_packets.BasicFrameBuilder(1, echo_request)
self.cert_send_b_frame(echo_request_l2cap)
assertThat(self.cert_channel).emits(
L2capMatchers.PartialData(b"\x06\x01\x04\x00\x02\x00\x03\x00"))
def test_implicitly_request_use_FCS(self):
"""
L2CAP/FOC/BV-03-C [Lower Tester Implicitly Requests FCS should be Used]
TODO: Update this test case. What's the difference between this one and test_explicitly_request_use_FCS?
"""
self._setup_link_from_cert()
self.cert_l2cap.turn_on_ertm()
self.cert_l2cap.turn_on_fcs()
(dut_channel, cert_channel) = self._open_channel(scid=0x41,
psm=0x33,
use_ertm=True)
dut_channel.send(b'abc')
assertThat(cert_channel).emits(
L2capMatchers.PartialData(
b"abc\x4f\xa3")) # TODO: Use packet parser
def test_explicitly_request_use_FCS(self):
"""
L2CAP/FOC/BV-02-C [Lower Tester Explicitly Requests FCS should be Used]
Verify the IUT will include the FCS in I/S-frames if the Lower Tester explicitly requests that FCS
should be used.
"""
self._setup_link_from_cert()
self.cert_l2cap.turn_on_ertm()
self.cert_l2cap.turn_on_fcs()
(dut_channel, cert_channel) = self._open_channel(scid=0x41,
psm=0x33,
use_ertm=True)
dut_channel.send(b'abc')
assertThat(cert_channel).emits(
L2capMatchers.PartialData(
b"abc\x4f\xa3")) # TODO: Use packet parser