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#
# 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 logging
from unittest import mock
import pytest
from pymeasure.adapters import Adapter, FakeAdapter, ProtocolAdapter
@pytest.fixture()
def adapter():
return Adapter()
@pytest.fixture()
def fake():
return FakeAdapter()
def test_init(adapter):
assert adapter.connection is None
assert adapter.log == logging.getLogger("Adapter")
def test_init_log():
adapter = Adapter(log=logging.getLogger("parent"))
assert adapter.log == logging.getLogger("parent.Adapter")
def test_deprecated_preprocess_reply():
with pytest.warns(FutureWarning):
adapter = Adapter(preprocess_reply=lambda v: v)
assert adapter.preprocess_reply is not None
def test_del(adapter):
adapter.connection = mock.MagicMock()
adapter.__del__()
assert adapter.connection.method_calls == [mock.call.close()]
def test_write(fake):
fake.write("abc")
assert fake._buffer == "abc"
def test_write_bytes(fake):
fake.write_bytes(b"abc")
assert fake._buffer == "abc"
def test_read(fake):
fake._buffer = "abc"
assert fake.read() == "abc"
def test_read_bytes(fake):
fake._buffer = "abc"
assert fake.read_bytes(5) == b"abc"
@pytest.mark.parametrize("method, args", (['_write', ['5']],
['_read', []],
['_write_bytes', ['8']],
['_read_bytes', ['5', False]],
))
def test_not_implemented_methods(adapter, method, args):
with pytest.raises(NotImplementedError):
getattr(adapter, method)(*args)
def test_ask_deprecation_warning():
a = FakeAdapter()
with pytest.warns(FutureWarning):
assert a.ask("abc") == "abc"
@pytest.mark.parametrize("value, kwargs, result",
(("5,6,7", {}, [5, 6, 7]),
("5.6.7", {'separator': '.'}, [5, 6, 7]),
("5,6,7", {'cast': str}, ['5', '6', '7']),
("X,Y,Z", {}, ['X', 'Y', 'Z']),
("X,Y,Z", {'cast': str}, ['X', 'Y', 'Z']),
("X.Y.Z", {'separator': '.'}, ['X', 'Y', 'Z']),
("0,5,7.1", {'cast': bool}, [False, True, True]),
))
def test_adapter_values(value, kwargs, result):
a = FakeAdapter()
with pytest.warns(FutureWarning):
assert a.values(value, **kwargs) == result
def test_read_binary_values():
a = ProtocolAdapter([(None, "1 2")])
assert list(a.read_binary_values(dtype=int, sep=" ")) == pytest.approx([1, 2])
def test_write_binary_values():
"""Test write_binary_values in the ieee header format."""
a = ProtocolAdapter([(b'CMD#212\x00\x00\x80?\x00\x00\x00@\x00\x00@@\n', None)])
a.write_binary_values("CMD", [1, 2, 3], termination="\n")
def test_adapter_preprocess_reply():
with pytest.warns(FutureWarning):
a = FakeAdapter(preprocess_reply=lambda v: v[1:])
assert str(a) == "<FakeAdapter>"
assert a.values("R42.1") == [42.1]
assert a.values("A4,3,2") == [4, 3, 2]
assert a.values("TV 1", preprocess_reply=lambda v: v.split()[0]) == ['TV']
assert a.values("15", preprocess_reply=lambda v: v) == [15]
a = FakeAdapter()
assert a.values("V 3.4", preprocess_reply=lambda v: v.split()[1]) == [3.4]
def test_binary_values_deprecation_warning():
a = FakeAdapter()
with pytest.warns(FutureWarning):
a.binary_values("abcdefgh")
class TestLoggingForTestGenerator:
"""The test Generator relies on specific logging in the adapter, these tests ensure that."""
message = b"some written message"
@pytest.fixture
def adapter(self, caplog):
adapter = ProtocolAdapter()
caplog.set_level(logging.DEBUG)
return adapter
def test_write(self, adapter, caplog):
adapter.comm_pairs = [(self.message, None)]
written = self.message.decode()
adapter.write(written)
record = caplog.records[0]
assert record.msg == "WRITE:%s"
assert record.args == (written,)
def test_write_bytes(self, adapter, caplog):
adapter.comm_pairs = [(self.message, None)]
adapter.write(self.message)
record = caplog.records[0]
assert record.msg == "WRITE:%s"
assert record.args == (self.message,)
def test_read(self, adapter, caplog):
adapter.comm_pairs = [(None, self.message)]
read = adapter.read()
assert read == self.message.decode()
record = caplog.records[0]
assert record.msg == "READ:%s"
assert record.args == (read,)
def test_read_bytes(self, adapter, caplog):
adapter.comm_pairs = [(None, self.message)]
read = adapter.read_bytes(-1)
assert read == self.message
record = caplog.records[0]
assert record.msg == "READ:%s"
assert record.args == (read,)
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