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# THIS FILE IS PART OF THE CYLC WORKFLOW ENGINE.
# Copyright (C) NIWA & British Crown (Met Office) & Contributors.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from pathlib import Path
import pytest
try:
from cylc.flow.main_loop.log_data_store import (
_dump,
_plot,
_iter_data_store
)
except ModuleNotFoundError as exc:
if exc.name == 'pympler':
pytest.skip(
'pympler required for these tests',
allow_module_level=True
)
else:
raise
@pytest.fixture()
def test_data():
return {
'times': [1, 2, 3],
'objects': {
'foo': [4, 5, 6]
},
'size': {
'foo': [7, 8, 9]
}
}
def test_dump(test_data, tmp_path):
"""Ensure the data is serialiseable."""
assert _dump(test_data, tmp_path)
assert list(tmp_path.iterdir()) == [
Path(tmp_path, 'cylc.flow.main_loop.log_data_store.json')
]
def test_plot_no_data(tmp_path):
"""Ensure plotting skips if data insufficient."""
assert not _plot({'times': [1]}, tmp_path)
def test_plot(test_data, tmp_path):
"""Ensure the plotting mechanism doesn't raise errors."""
pytest.importorskip('matplotlib', reason='requires matplotlib')
assert _plot(test_data, tmp_path)
assert list(tmp_path.iterdir()) == [
Path(tmp_path, 'cylc.flow.main_loop.log_data_store.pdf')
]
def test_iter_data_store():
assert (
list(_iter_data_store({'x': {'a': 1, 'workflow': 2, 'c': 3}}))
) == [
('a', 1), ('c', 3)
]
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