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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
#
# This file is part of the PyMeasure package.
#
# Copyright (c) 2013-2024 PyMeasure Developers
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
import pytest
from pymeasure.test import expected_protocol
from pymeasure.instruments.hcp import TC038D
# Testing the 'write multiple values' method of the device.
def test_write_multiple_values():
# Communication from manual.
with expected_protocol(
TC038D,
[(b"\x01\x10\x01\x0A\x00\x04\x08\x00\x00\x03\xE8\xFF\xFF\xFC\x18\x8D\xE9",
b"\x01\x10\x01\x0A\x00\x04\xE0\x34")]
) as inst:
inst.write("W,0x010A,1000,-1000")
inst.read()
def test_write_multiple_values_decimal_address():
# Communication from manual.
with expected_protocol(
TC038D,
[(b"\x01\x10\x01\x0A\x00\x04\x08\x00\x00\x03\xE8\xFF\xFF\xFC\x18\x8D\xE9",
b"\x01\x10\x01\x0A\x00\x04\xE0\x34")]
) as inst:
inst.write("W,266,1000,-1000")
inst.read()
def test_write_values_CRC_error():
"""Test whether an invalid response CRC code raises an Exception."""
with expected_protocol(
TC038D,
[(b"\x01\x10\x01\x06\x00\x02\x04\x00\x00\x01A\xbf\xb5",
b"\x01\x10\x01\x06\x00\x02\x01\x02")],
) as inst:
with pytest.raises(ConnectionError):
inst.setpoint = 32.1
def test_write_multiple_handle_wrong_start_address():
"""Test whether the error code (byte 2) of 2 raises the right error."""
with expected_protocol(
TC038D,
[(b"\x01\x10\x01\x06\x00\x02\x04\x00\x00\x01A\xbf\xb5",
b"\x01\x90\x02\xcd\xc1")],
) as inst:
with pytest.raises(ValueError, match="Wrong start address"):
inst.setpoint = 32.1
# Test the 'read register' method of the device
def test_read_CRC_error():
"""Test whether an invalid response CRC code raises an Exception."""
with expected_protocol(
TC038D,
[(b"\x01\x03\x00\x00\x00\x02\xC4\x0B",
b"\x01\x03\x04\x00\x00\x03\xE8\x01\x02")],
) as inst:
with pytest.raises(ConnectionError):
inst.temperature
def test_read_address_error():
"""Test whether the error code (byte 2) of 2 raises the right error."""
with expected_protocol(
TC038D,
[(b"\x01\x03\x00\x00\x00\x02\xC4\x0B",
b"\x01\x83\x02\xc0\xf1")],
) as inst:
with pytest.raises(ValueError, match="start address"):
inst.temperature
def test_read_elements_error():
"""Test whether the error code (byte 2) of 3 raises the right error."""
with expected_protocol(
TC038D,
[(b"\x01\x03\x00\x00\x00\x02\xC4\x0B",
b"\x01\x83\x03\x011")],
) as inst:
with pytest.raises(ValueError, match="Variable data"):
inst.temperature
def test_read_any_error():
"""Test whether any wrong message (byte 1 is not 3) raises an error."""
with expected_protocol(
TC038D,
[(b"\x01\x03\x00\x00\x00\x02\xC4\x0B",
b"\x01\x43\x05\xd13")],
) as inst:
with pytest.raises(ConnectionError):
inst.temperature
# Test properties
def test_setpoint():
with expected_protocol(
TC038D,
[(b"\x01\x03\x01\x06\x00\x02\x25\xf6",
b"\x01\x03\x04\x00\x00\x00\x99:Y")],
) as inst:
assert inst.setpoint == 15.3
def test_setpoint_setter():
with expected_protocol(
TC038D,
[(b"\x01\x10\x01\x06\x00\x02\x04\x00\x00\x01A\xbf\xb5",
b"\x01\x10\x01\x06\x00\x02\xa0\x35")],
) as inst:
inst.setpoint = 32.1
def test_temperature():
# Communication from manual.
# Tests readRegister as well.
with expected_protocol(
TC038D,
[(b"\x01\x03\x00\x00\x00\x02\xC4\x0B",
b"\x01\x03\x04\x00\x00\x03\xE8\xFA\x8D")],
) as inst:
assert inst.temperature == 100
def test_ping():
# Communication from manual.
with expected_protocol(
TC038D,
[(b"\x01\x08\x00\x00\x12\x34\xed\x7c", b"\x01\x08\x00\x00\x12\x34\xed\x7c")],
) as inst:
inst.ping(4660)
|
