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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 pytest
from io import StringIO
from pymeasure.experiment.sequencer import SequenceHandler, SequenceEvaluationError
def non_empty_lines(text):
lines = text.split("\n")
linect = 0
for line in lines:
if line.strip() != "":
linect += 1
return linect
seq_file_text_1 = """
- "P1", "[1,2]"
-- "P2", "[3, 4, 5]"
"""
seq_file_text_2 = """
- "P1", "[1,2]"
-- "P2", "[3, 4, 5]"
- "P1", "[4,5]"
"""
seq_file_text_3 = """
- "P1", "[1,2]"
-- "P2", "[3, 4, 5]"
--- "P3", "[4, 5, 6]"
"""
@pytest.mark.parametrize("seq_file_text",
[
(seq_file_text_1,
(0, 1),
(1, 0),
("P1", "P2")),
(seq_file_text_2,
(0, 1, 0),
(1, 0, 0),
("P1", "P2", "P1")),
(seq_file_text_3,
(0, 1, 2),
(1, 1, 0),
("P1", "P2", "P3")),
])
def test_sequencer(seq_file_text):
file_text, levels, children, params = seq_file_text
fd = StringIO(file_text)
s = SequenceHandler(file_obj=fd)
assert len(s._sequences) == non_empty_lines(file_text)
for index, lev in enumerate(levels):
assert s._sequences[index].level == lev
for index, c in enumerate(children):
assert len(s.children(s._sequences[index])) == c
for index, c in enumerate(params):
assert s._sequences[index].parameter == c
seq_file_text_err1 = """
- "P1", "[1,2"
-- "P2", "[3, 4, 5]"
"""
seq_file_text_err2 = """
- "P1", "[1,2]"
--- "P2", "[3, 4, 5]"
- "P1", "[4,5]"
"""
seq_file_text_err3 = """
- "P1", "[1,2]"
-- "P2", "[3, 4, 5]"
--- "P3", ""
"""
@pytest.mark.parametrize("seq_file_text_err",
[(seq_file_text_err1,
SequenceEvaluationError,
"SyntaxError, likely unbalanced brackets"),
(seq_file_text_err2,
SequenceEvaluationError,
'Invalid file format: level missing ?'),
(seq_file_text_err3,
SequenceEvaluationError,
"No sequence entered")])
def test_sequencer_errors(seq_file_text_err):
file_text, exception, exc_text = seq_file_text_err
fd = StringIO(file_text)
with pytest.raises(exception, match=exc_text):
seq = SequenceHandler(file_obj=fd)
seq.parameters_sequence()
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