Commit 30b84236 authored by Linus Pithan's avatar Linus Pithan Committed by Cyril Guilloud

Resolve "test failure: test_serial_read_ascii"

parent a507605e
......@@ -13,3 +13,4 @@ umodbus == 1.0.2.1
socat
ser2net
tango_serialline
pytest-rerunfailures
......@@ -88,8 +88,8 @@ def _inspect_serial_port_settings(fake_port):
return (options, params)
@pytest.fixture(scope="session")
def fake_serial(find_free_port):
@pytest.fixture
def fake_serial(find_free_port, wait_for_fixture):
"""
creates an emulated serial port using socat. The data written to the port can be
received via a tcp socket for tests. Data written to this socket can be read by the
......@@ -102,12 +102,12 @@ def fake_serial(find_free_port):
stderr=subprocess.PIPE,
)
gevent.sleep(1)
with gevent.Timeout(10, RuntimeError("Serial tango server is not running")):
wait_for_fixture(fake_serial_server.stderr, "PTY is ")
err = fake_serial_server.stderr.readline()
err = err.strip()
err = err.decode()
serial_port_fd = err.split(" ")[-1]
serial_port_fd = err.decode()
print("Emulated serial port:", serial_port_fd)
print("Reference socket port:", ref_socket_port)
......@@ -138,7 +138,7 @@ def reference_socket(fake_serial):
soc.close()
@pytest.fixture(scope="session")
@pytest.fixture
def ser2net_server(find_free_port, fake_serial):
serial_port_fd, ref_socket_port = fake_serial
s2n_control_port = find_free_port()
......@@ -155,8 +155,8 @@ def ser2net_server(find_free_port, fake_serial):
ser2net = subprocess.Popen(
[SER2NET, "-n", "-u", "-p", str(s2n_control_port), "-C", s2nconf]
)
gevent.sleep(1)
# unfortionatly there is no output so we can not use wait_for_fixture
gevent.sleep(.5)
yield s2n_control_port, s2n_port_telnet, s2n_port_raw, s2n_port_raw_nobreak, serial_port_fd
......@@ -196,15 +196,6 @@ def tango_serial(ports, beacon, wait_for_fixture, fake_serial):
p.terminate()
#### to clean up after tango server ... just open the port once with py-serial....
#### from time to time there seem to be characters reamaining in the port
#### after the tango serial device server has been shut down
serial_port = pyserial.Serial(serial_port_fd)
gevent.sleep(.5)
serial_port.flush()
serial_port.close()
@pytest.fixture
def local_serial(fake_serial):
......@@ -364,7 +355,13 @@ SIMPLE_PORTS = [
UNSUPPORTED_PORT_SETTINGS = [("tango_serial", PARAMS_2), ("tango_serial", PARAMS_3)]
# in this module we use "@pytest.mark.flaky(reruns=1)"
# due to some unreproducible behaviour of the tango serial server
# which we do not want to debug here...
@pytest.mark.parametrize("get_serial,params", ALL_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_write_ascii(get_serial, params, reference_socket):
with get_serial(params) as serial_port:
data = b"hello\nworld\n"
......@@ -373,6 +370,7 @@ def test_serial_write_ascii(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", ALL_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_read_ascii(get_serial, params, reference_socket):
with get_serial(params) as serial_port:
data = b"hello\nworld\n"
......@@ -382,6 +380,7 @@ def test_serial_read_ascii(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", EOL_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_write_readline_ascii(get_serial, params, reference_socket):
with get_serial(params) as serial_port:
eol = b"\n"
......@@ -405,6 +404,7 @@ def test_serial_write_readline_ascii(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", EOL_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_write_read_single_char(get_serial, params, reference_socket):
with get_serial(params) as serial_port:
......@@ -424,6 +424,7 @@ def test_serial_write_read_single_char(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", SIMPLE_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_IAC(get_serial, params, reference_socket):
with get_serial(params) as serial_port:
IAC = bytes([0xFF])
......@@ -441,6 +442,7 @@ def test_serial_IAC(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", SIMPLE_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_raw_write_read(get_serial, params, reference_socket):
# waiting for ser2net v4
pytest.xfail()
......@@ -464,6 +466,7 @@ def test_raw_write_read(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", SIMPLE_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_raw_write_read2(get_serial, params, reference_socket):
# waiting for ser2net v4
pytest.xfail()
......@@ -488,6 +491,7 @@ def test_raw_write_read2(get_serial, params, reference_socket):
@pytest.mark.parametrize("get_serial,params", ALL_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_port_settings(get_serial, params, reference_socket, fake_serial):
with get_serial(params) as (serial_port):
......@@ -543,6 +547,7 @@ def test_serial_port_settings(get_serial, params, reference_socket, fake_serial)
@pytest.mark.parametrize(
"get_serial,params", UNSUPPORTED_PORT_SETTINGS, indirect=["get_serial"]
)
@pytest.mark.flaky(reruns=1)
def test_serial_port_unsupported_settings(
get_serial, params, reference_socket, fake_serial
):
......@@ -579,6 +584,7 @@ TROUBLE_PORTS = [
@pytest.mark.parametrize("get_serial,params", TROUBLE_PORTS, indirect=["get_serial"])
@pytest.mark.flaky(reruns=1)
def test_serial_write_ascii_trouble(get_serial, params, reference_socket):
pytest.xfail()
with get_serial(params) as serial_port:
......
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