def test_end_session(client: Client):
# client instance starts out not initialized
# XXX do we want to change this?
assert client.session_id is not None
# get_address will succeed
with client:
client.set_expected_responses([messages.Address])
get_test_address(client)
client.end_session()
assert client.session_id is None
with pytest.raises(TrezorFailure) as exc:
get_test_address(client)
assert exc.value.code == messages.FailureType.InvalidSession
assert exc.value.message.endswith("Invalid session")
client.init_device()
assert client.session_id is not None
with client:
client.set_expected_responses([messages.Address])
get_test_address(client)
with client:
# end_session should succeed on empty session too
client.set_expected_responses([messages.Success] * 2)
client.end_session()
client.end_session()
def test_cannot_resume_ended_session(client: Client):
session_id = client.session_id
with client:
client.set_expected_responses([messages.Features])
client.init_device(session_id=session_id)
assert session_id == client.session_id
client.end_session()
with client:
client.set_expected_responses([messages.Features])
client.init_device(session_id=session_id)
assert session_id != client.session_id
def test_end_session_only_current(client: Client):
"""test that EndSession only destroys the current session"""
session_id_a = client.session_id
client.init_device(new_session=True)
session_id_b = client.session_id
client.end_session()
assert client.session_id is None
# resume ended session
client.init_device(session_id=session_id_b)
assert client.session_id != session_id_b
# resume first session that was not ended
client.init_device(session_id=session_id_a)
assert client.session_id == session_id_a
def test_session_recycling(client: Client):
session_id_orig = client.session_id
with client:
client.set_expected_responses([
messages.PassphraseRequest,
messages.ButtonRequest,
messages.ButtonRequest,
messages.Address,
])
client.use_passphrase("TREZOR")
address = get_test_address(client)
# create and close 100 sessions - more than the session limit
for _ in range(100):
client.init_device(new_session=True)
client.end_session()
# it should still be possible to resume the original session
with client:
# passphrase should still be cached
client.set_expected_responses([messages.Features, messages.Address])
client.use_passphrase("TREZOR")
client.init_device(session_id=session_id_orig)
assert address == get_test_address(client)