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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
# SPDX-FileCopyrightText: All Contributors to the PyTango project
# SPDX-License-Identifier: LGPL-3.0-or-later
import time
from tango import (
EventType,
AttrWriteType,
AttrConfEventData,
DevFailed,
DevError,
)
from tango.server import Device, attribute, command
from tango.test_utils import DeviceTestContext
from tango.utils import EventCallback
A_BIT = 0.5
class EchoDevice(Device):
scalar_int_value = 1
@attribute(access=AttrWriteType.READ_WRITE)
def scalar_int(self) -> int:
return self.scalar_int_value
def write_scalar_int(self, new_value):
self.scalar_int_value = new_value
@command(dtype_in=[int])
def change_min_max(self, values):
w_attr = self.get_device_attr().get_w_attr_by_name("scalar_int")
w_attr.set_min_value(values[0])
w_attr.set_max_value(values[1])
def test_attribute_configuration_event():
with DeviceTestContext(EchoDevice, process=True) as proxy:
start_time = time.time()
cb = EventCallback()
event_id = proxy.subscribe_event("scalar_int", EventType.ATTR_CONF_EVENT, cb)
def check_limits(attr_conf_event, min_value, max_value):
attr_info = attr_conf_event.attr_conf
assert attr_info.min_value == min_value
assert attr_info.max_value == max_value
time.sleep(A_BIT)
events = cb.get_events()
assert len(events) == 1
ev = events[0]
check_limits(ev, "Not specified", "Not specified")
assert "scalar_int" in ev.attr_name
assert ev.event == "attr_conf"
assert not ev.err
tv1 = ev.get_date()
tv2 = ev.reception_date
assert str(tv1) == str(tv2)
assert start_time < tv1.totime() < start_time + 2 * A_BIT
assert ev.errors == ()
assert ev.device is proxy
new_limits = [10, 15]
proxy.change_min_max(new_limits)
time.sleep(A_BIT)
assert len(events) == 3
check_limits(events[1], "10", "Not specified")
check_limits(events[2], "10", "15")
proxy.unsubscribe_event(event_id)
def test_attribute_configuration_event_set_errors():
conf_event = AttrConfEventData()
conf_event.errors = DevFailed(DevError())
assert len(conf_event.errors) == 1
|
